IQ24050HZV60NRA-G [SYNQOR]
DC-DC Regulated Power Supply Module, 1 Output, 300W, Hybrid, ROHS COMPLIANT, HALF BRICK PACKAGE-8;
| 型号： | IQ24050HZV60NRA-G |
| 厂家： | 
SYNQOR WORLDWIDE HEADQUARTERS |
| 描述： | DC-DC Regulated Power Supply Module, 1 Output, 300W, Hybrid, ROHS COMPLIANT, HALF BRICK PACKAGE-8 局域网 |
| 文件： | 总27页 (文件大小：3308K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Technical
Specification
IQ24xxxHZXxx
18-36V
50V
5.0-50V 504W
2250V dc
Half-brick
DC-DC Converter
Continuous Input Transient Input
Outputs
Max Power
Isolation
The InQor Half-brick converter series is composed of next-
generation, board-mountable, fixed switching frequency dc-
dc converters that use synchronous rectification to achieve
extremely high power conversion efficiency. Each module
is supplied completely encased to provide protection
from the harsh environments seen in many industrial and
transportation applications.
I
Q
2
4
0
C
5
N
.
D
0
V
0
C
H
Z
C
-
D
C
6
0
R
6
O
5
1
N
8
R
-
3
E
A
-
G
6
R
T
E
V
I
N
V
Operational Features
O
@
U
T
0
A
• High efficiency, 94% at full rated load current
• Operating input voltage range: 18-36V
• Fixed frequency switching provides predictable EMI
• No minimum load requirement
• Optional: Active current share for parallel applications
ection Features
Mechanical Features
ut under-voltage lockout
put current limit and short circuit protection
ve back bias limit
• Industry standard Half-brick pin-out
• Size: 2.386" x 2.486" x 0.512" (60.60 x 63.14 x 13.00 mm)
• Total weight: 4.9 oz (139 g)
o-recovery output over-voltage protection
rmal shutdown
• Flanged baseplate version available
Control Features
CONTENTS
• On/Off control referenced to input side
Page No.
• Remote sense for the output voltage
Family Electrical Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Electrical Characteristics (5.0 Vout) & Figures . . . . . . . . . . . . . . . . . . . 4
Electrical Characteristics (12 Vout) & Figures . . . . . . . . . . . . . . . . . . . . 6
Electrical Characteristics (15 Vout) & Figures . . . . . . . . . . . . . . . . . . . . 8
Electrical Characteristics (24 Vout) & Figures . . . . . . . . . . . . . . . . . . . .10
Electrical Characteristics (28 Vout) & Figures . . . . . . . . . . . . . . . . . . . .12
Electrical Characteristics (40 Vout) & Figures . . . . . . . . . . . . . . . . . . . .14
Electrical Characteristics (50 Vout) & Figures . . . . . . . . . . . . . . . . . . . .16
Application Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Standards & Qualification Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Standard Mechanical Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Flanged Mechanical Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
• Wide output voltage trim range of at least -50%, +10%
Safety Features
• UL 60950-1/R:2011-12 Basic Insulation
• CAN/CSA-C22.2 No. 60950-1/A1:2011
• EN 60950-1/A12:2011
• RoHS compliant (see last page)
Product # IQ24xxxHZXxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005664 Rev. D
11/18/13
Page 1
Technical
Specification
IQ24xxxHZXxx
IQ24 FAMILY ELECTRICAL CHARACTERISTICS (all output voltages)
Ta = 25 °C, airflow rate = 300 LFM, Vin = 24V dc unless otherwise noted; full operating temperature range is -40 °C to +100 °C baseplate temperature
with appropriate power derating. Specifications subject to change without notice.
Parameter
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Min.
Typ.
Max. Units Notes & Conditions
Non-Operating
Operating
Operating Transient Protection
Isolation Voltage
-1
50
40
50
V
V
V
Continuous
Continuous
1 s transient, square wave
Input to Output
Input to Base-Plate
Output to Base-Plate
Operating Temperature
2250
2250
2250
100
125
18
V dc
V dc
V dc
°C
°C
V
-40
-45
-2
Baseplate temperature
50V transient for 1 s
Storage Temperature
Voltage at ON/OFF input pin
INPUT CHARACTERISTICS
Operating Input Voltage Range
Input Under-Voltage Lockout
Turn-On Voltage Threshold
Turn-Off Voltage Threshold
Lockout Voltage Hysteresis
Input Over-Voltage Shutdown
Recommended External Input Capacitance
Input Filter Component Values (C1\Lin\C2)
DYNAMIC CHARACTERISTICS
Turn-On Transient
18
24
36
V
16.5
15.0
1.0
17.0
15.5
1.5
17.5
16.0
2.0
V
V
V
V
µF
-
Not Available
Typical ESR 0.1-0.2 Ω
470
47\0.34\23
nF\µH\µF Internal values; see Figure D
Turn-On Time
24
35
40
5
ms
%
ms
Full load, Vout=90% nom; See Note 2
Maximum Output Capacitance
See Application Section
Output Voltage Overshoot
Auto-recovery Startup Inhibit Time
ISOLATION CHARACTERISTICS
Isolation Voltage (dielectric strength)
Isolation Resistance
500
See Absolute Maximum Ratings
See Note 1
30
1000
MΩ
pF
Isolation Capacitance (input to output)
TEMPERATURE LIMITS FOR POWER DERATING CURVES
Semiconductor Junction Temperature
Board Temperature
Transformer Temperature
Maximum Baseplate Temperature, Tb
FEATURE CHARACTERISTICS
125
125
125
100
°C
°C
°C
°C
Package rated to 150 °C
UL rated max operating temp 130 °C
Switching Frequency
ON/OFF Control
Off-State Voltage
On-State Voltage
230
240
250
kHz
V
Insolation stage switching freq. is half this
2.4
-2.0
18.0
0.8
ON/OFF Control
Pull-Up Voltage
Pull-Up Resistance
Over-Temperature Shutdown OTP Trip Point
Over-Temperature Shutdown Restart Hysteresis
RELIABILITY CHARACTERISTICS
Calculated MTBF (Telcordia) TR-NWT-000332
Calculated MTBF (MIL-217) MIL-HDBK-217F
Field Demonstrated MTBF
Application notes Figure A
28, 50Vout\All Other Vout
kΩ\kΩ 28, 50Vout\All Other Vout
5\15
10\50
125
5.5\18
V\V
°C
°C
Average PCB Temperature
10
1.44
1.2
106 Hrs. Tb = 70°C
106 Hrs. Tb = 70°C
106 Hrs. See our website for details
Note 1: Higher values of isolation capacitance can be added external to the module.
Note 2: Additional 30ms between enable and start of Turn-On time for full-featured units to set up communication (N/A to 28V and 50V)
Product # IQ24xxxHZXxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005664 Rev. D
11/18/13
Page 2
Technical
Specification
IQ24xxxHZXxx
Family Figures (all output voltages)
120
100
80
60
40
20
0
Typical Current Limit Inception Point
Nominal Vout
Typical Output Voltage at Shutdown
Vin min
Vin nom
Vin max
0
10 20 30 40 50 60 70 80 90 100 110 120 130 140 150
Load Current (%)
Common Figure 1: Startup Waveform (typical). Input voltage pre-applied, ON/
Common Figure 2: Output I-V Characteristics (output voltage vs. load current)
OFF Pin on Ch 2.
showing typical current limit curves and converter shutdown points.
Common Figure 3: Trim-Up Graph for 5.0 to 15V outputs.
Common Figure 4: Trim-Up Graph for 24 to 50V outputs.
Common Figure 5: Trim-Down Graph for all outputs.
Product # IQ24xxxHZXxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005664 Rev. D
11/18/13
Page 3
Input:18-36V
Output:5.0V
Current:60A
Part No.:IQ24050HZx60
Technical Specification
IQ24050HZx60 ELECTRICAL CHARACTERISTICS (5.0 Vout)
Ta = 25 °C, airflow rate = 300 LFM, Vin = 24V dc unless otherwise noted; full operating temperature range is -40 °C to +100 °C baseplate temperature
with appropriate power derating. Specifications subject to change without notice.
Parameter
Min.
Typ.
Max. Units Notes & Conditions
INPUT CHARACTERISTICS
Maximum Input Current
No-Load Input Current
20
350
5
A
mA
mA
V
100% Load, 18V Vin, trimmed up 10%
290
3
Disabled Input Current
Response to Input Transient
Input Terminal Ripple Current
Recommended Input Fuse
OUTPUT CHARACTERISTICS
Output Voltage Set Point
Output Voltage Regulation
Over Line
0.95
500
See Figure 6
mA
A
RMS
40
Fast acting external fuse recommended
4.918
5.000
5.070
V
See Note 3
±0.25
±0.25
%
%
mV
V
Over Load
Over Temperature
-125
125
Total Output Voltage Range
Output Voltage Ripple and Noise
Peak-to-Peak
4.850
5.150
Over sample, line, load, temperature & life
20 MHz bandwidth; see Note 1
Full load
135
32
mV
mV
A
RMS
Full load
Operating Output Current Range
Output DC Current-Limit Inception
Output DC Current-Limit Shutdown Voltage
Back-Drive Current Limit while Enabled
Back-Drive Current Limit while Disabled
Maximum Output Capacitance
Output Voltage during Load Current Transient
Step Change in Output Current (0.2 A/µs)
Settling Time
0
60
Subject to thermal derating
Output voltage 10% Low
See Note 2
66.0
72.0
78.0
A
2
6
3
V
A
Negative current drawn from output
Negative current drawn from output
Vout nominal at full load (resistive load)
0
4
mA
µF
20,000
150
500
mV
µs
%
%
V
50% to 75% to 50% Iout max
To within 1% Vout nom
Output Voltage Trim Range
Output Voltage Remote Sense Range
Output Over-Voltage Protection
EFFICIENCY
-50
5.9
10
10
Across Pins 8&4; Common Figures 3-5;
Across Pins 8&4
6.2
6.4
Over full temp range
100% Load
92
93
%
%
See Figure 1 for efficiency curve
See Figure 1 for efficiency curve
50% Load
Note 1: Output is terminated with 1 µF ceramic and 15 µF low-ESR tantalum capacitors. For applications requiring reduced output voltage ripple and
noise, consult SynQor applications support (e-mail: support@synqor.com)
Note 2: If the output voltage falls below the Output DC Current Limit Shutdown Voltage for more than 50ms, then the unit will enter into hiccup mode,
Note 3: Line and load regulation is limited by duty cycle quantization and does not indicate a shift in the internal voltage reference
Product # IQ24xxxHZXxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005664 Rev. D
11/18/13
Page 4
Input:18-36V
Output:5.0V
Current:60A
Part No.:IQ24050HZx60
Technical Specification
100
95
90
85
80
75
70
65
60
40
35
30
25
20
15
10
5
18Vin
24Vin
36Vin
18Vin
24Vin
36Vin
0
0
6
12
18
24
30
36
42
48
54
60
0
6
12
18
24
30
36
42
48
54
60
Load Current (A)
Load Current (A)
Figure 1: Efficiency at nominal output voltage vs. load current for minimum,
Figure 2: Power Dissipation at nominal output voltage vs. load current for
nominal, and maximum input voltage at 25°C.
minimum, nominal, and maximum input voltage at 25°C.
80
70
60
50
40
30
80
70
60
50
40
30
400 LFM (2.0 m/s)
400 LFM (2.0 m/s)
20
20
300 LFM (1.5 m/s)
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
10
0
10
100 LFM (0.5 m/s)
0
25
40
55
70
85
25
40
55
70
85
Ambient Air Temperature (°C)
Ambient Air Temperature (°C)
Figure 3: Thermal Derating (max output current vs. ambient air temperature)
for encased converter without heatsink, at airflow rates of 100 LFM through 400
LFM. Air flows across the converter from input to output (nominal input voltage).
Figure 4: Thermal Derating (max output current vs. ambient air temperature)
for encased converter with 1/2" heatsink, at airflow rates of 100 LFM through
400 LFM. Air flows across the converter from input to output (nominal input
voltage).
Figure 5: Output Voltage Response to Step-Change in Load Current (50%-
75%-50% of Iout(max); dI/dt = 0.2A/µs). Load cap: 15µF tantalum cap and 1µF
ceramic cap. Ch 1: Vout, Ch 2: Iout (20A/div).
Figure 6: Output Voltage Response to Step-Change in Input Voltage (250 V/
ms), at Max. load current. Load cap: 100µF electrolytic cap and 1µF ceramic
cap. Ch 1: Vout, Ch 2: Vin.
Product # IQ24xxxHZXxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005664 Rev. D
11/18/13
Page 5
Input:18-36V
Output:12V
Current:42A
Part No.:IQ24120HZx42
Technical Specification
IQ24120HZx42 ELECTRICAL CHARACTERISTICS (12.0 Vout)
Ta = 25 °C, airflow rate = 300 LFM, Vin = 24V dc unless otherwise noted; full operating temperature range is -40 °C to +100 °C baseplate temperature
with appropriate power derating. Specifications subject to change without notice.
Parameter
Min.
Typ.
Max. Units Notes & Conditions
INPUT CHARACTERISTICS
Maximum Input Current
No-Load Input Current
33
375
5
A
mA
mA
V
100% Load, 18V Vin, trimmed up 10%
310
3
Disabled Input Current
Response to Input Transient
Input Terminal Ripple Current
Recommended Input Fuse
OUTPUT CHARACTERISTICS
Output Voltage Set Point
Output Voltage Regulation
Over Line
2
See Figure 6
500
mA
A
RMS
40
Fast acting external fuse recommended
11.80
12.00
12.17
V
See Note 3
±0.25
±0.25
%
%
mV
V
Over Load
Over Temperature
-300
300
Total Output Voltage Range
Output Voltage Ripple and Noise
Peak-to-Peak
11.64
12.36
Over sample, line, load, temperature & life
20 MHz bandwidth; see Note 1
Full load
100
24
mV
mV
A
RMS
Full load
Operating Output Current Range
Output DC Current-Limit Inception
Output DC Current-Limit Shutdown Voltage
Back-Drive Current Limit while Enabled
Back-Drive Current Limit while Disabled
Maximum Output Capacitance
Output Voltage during Load Current Transient
Step Change in Output Current (0.1 A/µs)
Settling Time
0
42
Subject to thermal derating
Output voltage 10% Low
See Note 2
46.2
50.4
54.6
A
5
6
3
V
A
Negative current drawn from output
Negative current drawn from output
Vout nominal at full load (resistive load)
4
mA
µF
12,000
300
500
mV
µs
%
%
V
50% to 75% to 50% Iout max
To within 1% Vout nom
Output Voltage Trim Range
Output Voltage Remote Sense Range
Output Over-Voltage Protection
EFFICIENCY
-50
10
10
Across Pins 8&4; Common Figures 3-5;
Across Pins 8&4
14.2
14.8
15.4
Over full temp range
100% Load
94
95
%
%
See Figure 1 for efficiency curve
See Figure 1 for efficiency curve
50% Load
Note 1: Output is terminated with 1 µF ceramic and 15 µF low-ESR tantalum capacitors. For applications requiring reduced output voltage ripple and
noise, consult SynQor applications support (e-mail: support@synqor.com)
Note 2: If the output voltage falls below the Output DC Current Limit Shutdown Voltage for more than 50ms, then the unit will enter into hiccup mode,
Note 3: Line and load regulation is limited by duty cycle quantization and does not indicate a shift in the internal voltage reference
Product # IQ24xxxHZXxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005664 Rev. D
11/18/13
Page 6
Input:18-36V
Output:12V
Current:42A
Part No.:IQ24120HZx42
Technical Specification
100
95
90
85
80
75
70
65
60
60
50
40
30
20
10
0
18Vin
24Vin
36Vin
18Vin
24Vin
36Vin
0
6
12
18
24
30
36
42
0
6
12
18
24
30
36
42
Load Current (A)
Load Current (A)
Figure 1: Efficiency at nominal output voltage vs. load current for minimum,
Figure 2: Power Dissipation at nominal output voltage vs. load current for
nominal, and maximum input voltage at 25°C.
minimum, nominal, and maximum input voltage at 25°C.
48
42
36
30
24
18
48
42
36
30
24
18
400 LFM (2.0 m/s)
400 LFM (2.0 m/s)
12
12
300 LFM (1.5 m/s)
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
6
0
6
100 LFM (0.5 m/s)
0
25
40
55
Ambient Air Temperature (°C)
70
85
25
40
55
70
85
Ambient Air Temperature (°C)
Figure 3: Thermal Derating (max output current vs. ambient air temperature)
for encased converter without heatsink, at airflow rates of 100 LFM through 400
LFM. Air flows across the converter from input to output (nominal input voltage).
Figure 4: Thermal Derating (max output current vs. ambient air temperature)
for encased converter with 1/2" heatsink, at airflow rates of 100 LFM through
400 LFM. Air flows across the converter from input to output (nominal input
voltage).
Figure 5: Output Voltage Response to Step-Change in Load Current (50%-
75%-50% of Iout(max); dI/dt = 0.1A/µs. Load cap: 15µF tantalum cap and 1µF
ceramic cap. Ch 1: Vout, Ch 2: Iout (20 A/div).
Figure 6: Output Voltage Response to Step-Change in Input Voltage (250 V/
ms), at Max. load current. Load cap: 100µF electrolytic cap and 1µF ceramic
cap. Ch 1: Vout, Ch 2: Vin.
Product # IQ24xxxHZXxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005664 Rev. D
11/18/13
Page 7
Input:18-36V
Output:15V
Current:34A
Part No.:IQ24150HZx34
Technical Specification
IQ24150HZx34 ELECTRICAL CHARACTERISTICS (15.0 Vout)
Ta = 25 °C, airflow rate = 300 LFM, Vin = 24V dc unless otherwise noted; full operating temperature range is -40 °C to +100 °C baseplate temperature
with appropriate power derating. Specifications subject to change without notice.
Parameter
Min.
Typ.
Max. Units Notes & Conditions
INPUT CHARACTERISTICS
Maximum Input Current
No-Load Input Current
34
400
5
A
mA
mA
V
100% Load, 18V Vin, trimmed up 10%
340
3
Disabled Input Current
Response to Input Transient
Input Terminal Ripple Current
Recommended Input Fuse
OUTPUT CHARACTERISTICS
Output Voltage Set Point
Output Voltage Regulation
Over Line
2.5
500
See Figure 6
mA
A
RMS
40
Fast acting external fuse recommended
14.75
15.00
15.21
V
See Note 3
±0.25
±0.25
%
%
mV
V
Over Load
Over Temperature
-375
375
Total Output Voltage Range
Output Voltage Ripple and Noise
Peak-to-Peak
14.55
15.45
Over sample, line, load, temperature & life
20 MHz bandwidth; see Note 1
Full load
100
20
mV
mV
A
RMS
Full load
Operating Output Current Range
Output DC Current-Limit Inception
Output DC Current-Limit Shutdown Voltage
Back-Drive Current Limit while Enabled
Back-Drive Current Limit while Disabled
Maximum Output Capacitance
Output Voltage during Load Current Transient
Step Change in Output Current (0.1 A/µs)
Settling Time
0
34
Subject to thermal derating
Output voltage 10% Low
See Note 2
37.4
40.8
44.2
A
6
6
3
V
A
Negative current drawn from output
Negative current drawn from output
Vout nominal at full load (resistive load)
4
mA
µF
10,000
500
250
mV
µs
%
%
V
50% to 75% to 50% Iout max
To within 1% Vout nom
Output Voltage Trim Range
Output Voltage Remote Sense Range
Output Over-Voltage Protection
EFFICIENCY
-50
10
10
Across Pins 8&4; Common Figures 3-5;
Across Pins 8&4
17.7
18.5
19.2
Over full temp range
100% Load
94.0
94.5
%
%
See Figure 1 for efficiency curve
See Figure 1 for efficiency curve
50% Load
Note 1: Output is terminated with 1 µF ceramic and 15 µF low-ESR tantalum capacitors. For applications requiring reduced output voltage ripple and
noise, consult SynQor applications support (e-mail: support@synqor.com)
Note 2: If the output voltage falls below the Output DC Current Limit Shutdown Voltage for more than 50ms, then the unit will enter into hiccup mode,
with a 500ms off-time
Note 3: Line and load regulation is limited by duty cycle quantization and does not indicate a shift in the internal voltage reference
Product # IQ24xxxHZXxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005664 Rev. D
11/18/13
Page 8
Input:18-36V
Output:15V
Current:34A
Part No.:IQ24150HZx34
Technical Specification
100
95
90
85
80
75
70
65
60
60
50
40
30
20
10
0
18Vin
24Vin
36Vin
18Vin
24Vin
36Vin
0
2
4
6
8
10 12 14 16 18 20 22 24 26 28 30 32 34
Load Current (A)
0
2
4
6
8
10 12 14 16 18 20 22 24 26 28 30 32 34
Load Current (A)
Figure 1: Efficiency at nominal output voltage vs. load current for minimum,
Figure 2: Power Dissipation at nominal output voltage vs. load current for
nominal, and maximum input voltage at 25°C.
minimum, nominal, and maximum input voltage at 25°C.
42
36
30
24
18
42
36
30
24
18
12
400 LFM (2.0 m/s)
400 LFM (2.0 m/s)
12
300 LFM (1.5 m/s)
300 LFM (1.5 m/s)
6
200 LFM (1.0 m/s)
200 LFM (1.0 m/s)
6
100 LFM (0.5 m/s)
100 LFM (0.5 m/s)
0
0
25
40
55
70
85
25
40
55
70
85
Ambient Air Temperature (°C)
Ambient Air Temperature (°C)
Figure 3: Thermal Derating (max output current vs. ambient air temperature)
for encased converter without heatsink, at airflow rates of 100 LFM through 400
LFM. Air flows across the converter from input to output (nominal input voltage).
Figure 4: Thermal Derating (max output current vs. ambient air temperature)
for encased converter with 1/2" heatsink, at airflow rates of 100 LFM through
400 LFM. Air flows across the converter from input to output (nominal input
voltage).
Figure 5: Output Voltage Response to Step-Change in Load Current (50%-
75%-50% of Iout(max); dI/dt = 0.1A/µs. Load cap: 15µF tantalum cap and 1µF
ceramic cap. Ch 1: Vout, Ch 2: Iout (20 A/div).
Figure 6: Output Voltage Response to Step-Change in Input Voltage (250 V/
ms), at Max. load current. Load cap: 100µF electrolytic cap and 1µF ceramic
cap. Ch 1: Vout, Ch 2: Vin.
Product # IQ24xxxHZXxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005664 Rev. D
11/18/13
Page 9
Input:18-36V
Output:24V
Current:21A
Part No.:IQ24240HZx21
Technical Specification
IQ24240HZx21 ELECTRICAL CHARACTERISTICS (24.0 Vout)
Ta = 25 °C, airflow rate = 300 LFM, Vin = 24V dc unless otherwise noted; full operating temperature range is -40 °C to +100 °C baseplate temperature
with appropriate power derating. Specifications subject to change without notice.
Parameter
Min.
Typ.
Max. Units Notes & Conditions
INPUT CHARACTERISTICS
Maximum Input Current
No-Load Input Current
33
360
5
A
mA
mA
V
100% Load, 18V Vin, trimmed up 10%
300
3
Disabled Input Current
Response to Input Transient
Input Terminal Ripple Current
Recommended Input Fuse
OUTPUT CHARACTERISTICS
Output Voltage Set Point
Output Voltage Regulation
Over Line
3
See Figure 6
500
mA
A
RMS
40
Fast acting external fuse recommended
23.60
24.00
24.34
V
See Note 3
±0.25
±0.25
%
%
mV
V
Over Load
Over Temperature
-600
600
Total Output Voltage Range
Output Voltage Ripple and Noise
Peak-to-Peak
23.28
24.72
Over sample, line, load, temperature & life
20 MHz bandwidth; see Note 1
Full load
450
150
mV
mV
A
RMS
Full load
Operating Output Current Range
Output DC Current-Limit Inception
Output DC Current-Limit Shutdown Voltage
Back-Drive Current Limit while Enabled
Back-Drive Current Limit while Disabled
Maximum Output Capacitance
Output Voltage during Load Current Transient
Step Change in Output Current (0.2 A/µs)
Settling Time
0
21
Subject to thermal derating
Output voltage 10% Low
See Note 2
23.1
25.2
9.6
3
27.3
A
V
A
Negative current drawn from output
Negative current drawn from output
Vout nominal at full load (resistive load)
3
4
mA
µF
6000
950
500
mV
µs
%
%
V
50% to 75% to 50% Iout max
To within 1% Vout nom
Output Voltage Trim Range
Output Voltage Remote Sense Range
Output Over-Voltage Protection
EFFICIENCY
-50
10
10
Across Pins 8&4; Common Figures 3-5;
Across Pins 8&4
28.3
29.5
30.7
Over full temp range
100% Load
94
95
%
%
See Figure 1 for efficiency curve
See Figure 1 for efficiency curve
50% Load
Note 1: Output is terminated with 1 µF ceramic and 15 µF low-ESR tantalum capacitors. For applications requiring reduced output voltage ripple and
noise, consult SynQor applications support (e-mail: support@synqor.com)
Note 2: If the output voltage falls below the Output DC Current Limit Shutdown Voltage for more than 50ms, then the unit will enter into hiccup mode,
with a 500ms off-time
Note 3: Line and load regulation is limited by duty cycle quantization and does not indicate a shift in the internal voltage reference
Product # IQ24xxxHZXxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005664 Rev. D
11/18/13
Page 10
Input:18-36V
Output:24V
Current:21A
Part No.:IQ24240HZx21
Technical Specification
100
95
90
85
80
75
70
65
60
70
60
50
40
30
20
10
0
18Vin
24Vin
36Vin
18Vin
24Vin
36Vin
0
3
6
9
12
15
18
21
0
3
6
9
12
15
18
21
Load Current (A)
Load Current (A)
Figure 1: Efficiency at nominal output voltage vs. load current for minimum,
Figure 2: Power Dissipation at nominal output voltage vs. load current for
nominal, and maximum input voltage at 25°C.
minimum, nominal, and maximum input voltage at 25°C.
24
21
18
15
12
9
24
21
18
15
12
9
400 LFM (2.0 m/s)
400 LFM (2.0 m/s)
6
6
300 LFM (1.5 m/s)
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
3
0
3
100 LFM (0.5 m/s)
0
25
40
55
Ambient Air Temperature (°C)
70
85
25
40
55
70
85
Ambient Air Temperature (°C)
Figure 4: Thermal Derating (max output current vs. ambient air temperature)
for encased converter with 1/2” heatsink, at airflow rates of 100 LFM through
400 LFM. Air flows across the converter from input to output (nominal input
voltage).
Figure 3: Thermal Derating (max output current vs. ambient air temperature)
for encased converter without heatsink, at airflow rates of 100 LFM through 400
LFM. Air flows across the converter from input to output (nominal input voltage).
Figure 6: Output Voltage Response to Step-Change in Input Voltage (250 V/
ms), at Max. load current. Load cap: 100µF electrolytic cap and 1µF ceramic
cap. Ch 1: Vout, Ch 2: Vin.
Figure 5: Output Voltage Response to Step-Change in Load Current (50%-
75%-50% of Iout(max); dI/dt = 0.1A/µs. Load cap: 1µF ceramic cap. Ch 1:
Vout, Ch 2: Iout (10 A/div).
Product # IQ24xxxHZXxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005664 Rev. D
11/18/13
Page 11
Input:18-36V
Output:28V
Current:18A
Part No.:IQ24280HZx18
Technical Specification
IQ24280HZx18 ELECTRICAL CHARACTERISTICS (28.0 Vout)
Ta = 25 °C, airflow rate = 300 LFM, Vin = 24V dc unless otherwise noted; full operating temperature range is -40 °C to +100 °C baseplate temperature
with appropriate power derating. Specifications subject to change without notice.
Parameter
Min.
Typ.
Max. Units Notes & Conditions
INPUT CHARACTERISTICS
Maximum Input Current
No-Load Input Current
37
A
mA
mA
V
100% Load, 18V Vin, trimmed up 10%
300
100
2.5
380
160
Disabled Input Current
Response to Input Transient
Input Terminal Ripple Current
Recommended Input Fuse
OUTPUT CHARACTERISTICS
Output Voltage Set Point
Output Voltage Regulation
Over Line
See Figure 6
500
mA
A
RMS
40
Fast acting external fuse recommended
27.54
28.00
28.39
V
See Note 3
±0.25
±0.25
%
%
mV
V
Over Load
Over Temperature
-700
700
Total Output Voltage Range
Output Voltage Ripple and Noise
Peak-to-Peak
27.16
28.84
Over sample, line, load, temperature & life
20 MHz bandwidth; see Note 1
Full load
150
40
300
80
mV
mV
A
RMS
Full load
Operating Output Current Range
Output DC Current-Limit Inception
Output DC Current-Limit Shutdown Voltage
Back-Drive Current Limit while Enabled
Back-Drive Current Limit while Disabled
Maximum Output Capacitance
Output Voltage during Load Current Transient
Step Change in Output Current (0.2 A/µs)
Settling Time
0
18
Subject to thermal derating
Output voltage 10% Low
See Note 2
19.5
21.0
11.2
5
22.5
A
V
4
0
6
4
A
Negative current drawn from output
Negative current drawn from output
Vout nominal at full load (resistive load)
3
mA
µF
5000
1.5
8
V
ms
%
%
V
50% to 75% to 50% Iout max
To within 1% Vout nom
Output Voltage Trim Range
Output Voltage Remote Sense Range
Output Over-Voltage Protection
EFFICIENCY
-50
20
10
Across Pins 8&4; Common Figures 3-5;
Across Pins 8&4
35.0
36.4
37.8
Over full temp range
100% Load
93
95
%
%
See Figure 1 for efficiency curve
See Figure 1 for efficiency curve
50% Load
Note 1: Output is terminated with 1 µF ceramic and 15 µF low-ESR tantalum capacitors. For applications requiring reduced output voltage ripple and
noise, consult SynQor applications support (e-mail: support@synqor.com)
Note 2: If the output voltage falls below the Output DC Current Limit Shutdown Voltage for more than 50ms, then the unit will enter into hiccup mode,
with a 500ms off-time
Note 3: Line and load regulation is limited by duty cycle quantization and does not indicate a shift in the internal voltage reference
Product # IQ24xxxHZXxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005664 Rev. D
11/18/13
Page 12
Input:18-36V
Output:28V
Current:18A
Part No.:IQ24280HZx18
Technical Specification
100
95
90
85
80
75
70
65
60
60
55
50
45
40
35
30
25
20
15
10
5
18Vin
24Vin
36Vin
18Vin
24Vin
36Vin
0
0
3
6
9
12
15
18
0
3
6
9
12
15
18
Load Current (A)
Load Current (A)
Figure 1: Efficiency at nominal output voltage vs. load current for minimum,
Figure 2: Power Dissipation at nominal output voltage vs. load current for
nominal, and maximum input voltage at 25°C.
minimum, nominal, and maximum input voltage at 25°C.
18
15
12
9
18
15
12
9
6
6
400 LFM (2.0 m/s)
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
300 LFM (1.5 m/s)
3
3
200 LFM (1.0 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
100 LFM (0.5 m/s)
0
0
25
40
55
70
85
25
40
55
70
85
Ambient Air Temperature (°C)
Ambient Air Temperature (°C)
Figure 3: Thermal Derating (max output current vs. ambient air temperature)
for encased converter without heatsink, at airflow rates of 100 LFM through 400
LFM. Air flows across the converter from input to output (nominal input voltage).
Figure 4: Thermal Derating (max output current vs. ambient air temperature)
for encased converter with 1/2" heatsink, at airflow rates of 100 LFM through
400 LFM. Air flows across the converter from input to output (nominal input
voltage).
Figure 5: Output Voltage Response to Step-Change in Load Current (50%-
75%-50% of Iout(max); dI/dt = 0.1A/µs. Load cap: 100µF electrolytic cap and
1µF ceramic cap. Ch 1: Vout, Ch 2: Iout (10 A/div).
Figure 6: Output Voltage Response to Step-Change in Input Voltage (250 V/
ms), at Max. load current. Load cap: 100µF electrolytic cap and 1µF ceramic
cap. Ch 1: Vout, Ch 2: Vin.
Product # IQ24xxxHZXxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005664 Rev. D
11/18/13
Page 13
Input:18-36V
Output:40V
Current:13A
Part No.:IQ24400HZx13
Technical Specification
IQ24400HZx13 ELECTRICAL CHARACTERISTICS (40.0 Vout)
Ta = 25 °C, airflow rate = 300 LFM, Vin = 24V dc unless otherwise noted; full operating temperature range is -40 °C to +100 °C baseplate temperature
with appropriate power derating. Specifications subject to change without notice.
Parameter
Min.
Typ.
Max. Units Notes & Conditions
INPUT CHARACTERISTICS
Maximum Input Current
No-Load Input Current
33
350
5
A
mA
mA
V
100% Load, 18V Vin, trimmed up 10%
280
3
Disabled Input Current
Response to Input Transient
Input Terminal Ripple Current
Recommended Input Fuse
OUTPUT CHARACTERISTICS
Output Voltage Set Point
Output Voltage Regulation
Over Line
3.5
400
See Figure 6
mA
A
RMS
40
Fast acting external fuse recommended
39.34
40.00
40.56
V
See Note 3
±0.25
±0.25
%
%
mV
V
Over Load
Over Temperature
-1000
38.80
1000
Total Output Voltage Range
Output Voltage Ripple and Noise
Peak-to-Peak
41.20
Over sample, line, load, temperature & life
20 MHz bandwidth; see Note 1
Full load
100
25
mV
mV
A
RMS
Full load
Operating Output Current Range
Output DC Current-Limit Inception
Output DC Current-Limit Shutdown Voltage
Back-Drive Current Limit while Enabled
Back-Drive Current Limit while Disabled
Maximum Output Capacitance
Output Voltage during Load Current Transient
Step Change in Output Current (0.2 A/µs)
Settling Time
0
12.5
16.3
Subject to thermal derating
Output voltage 10% Low
See Note 2
13.8
15.0
16
3
A
V
A
Negative current drawn from output
Negative current drawn from output
Vout nominal at full load (resistive load)
3
4
mA
µF
1500
2.2
V
µs
%
%
V
50% to 75% to 50% Iout max
To within 1% Vout nom
500
Output Voltage Trim Range
Output Voltage Remote Sense Range
Output Over-Voltage Protection
EFFICIENCY
-50
10
10
Across Pins 8&4; Common Figures 3-5;
Across Pins 8&4
47.2
49.2
51.2
Over full temp range
100% Load
93
95
%
%
See Figure 1 for efficiency curve
See Figure 1 for efficiency curve
50% Load
Note 1: Output is terminated with 1 µF ceramic and 15 µF low-ESR tantalum capacitors. For applications requiring reduced output voltage ripple and
noise, consult SynQor applications support (e-mail: support@synqor.com)
Note 2: If the output voltage falls below the Output DC Current Limit Shutdown Voltage for more than 50ms, then the unit will enter into hiccup mode,
with a 500ms off-time
Note 3: Line and load regulation is limited by duty cycle quantization and does not indicate a shift in the internal voltage reference
Product # IQ24xxxHZXxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005664 Rev. D
11/18/13
Page 14
Input:18-36V
Output:40V
Current:13A
Part No.:IQ24400HZx13
Technical Specification
100
95
90
85
80
75
70
65
60
60
50
40
30
20
10
0
18Vin
24Vin
36Vin
18Vin
24Vin
36Vin
0
1
2
3
4
5
6
7
8
9
10
11
12
13
0
1
2
3
4
5
6
7
8
9
10
11
12
13
Load Current (A)
Load Current (A)
Figure 1: Efficiency at nominal output voltage vs. load current for minimum,
Figure 2: Power Dissipation at nominal output voltage vs. load current for
nominal, and maximum input voltage at 25°C.
minimum, nominal, and maximum input voltage at 25°C.
16
14
12
10
8
16
14
12
10
8
6
6
400 LFM (2.0 m/s)
400 LFM (2.0 m/s)
4
4
300 LFM (1.5 m/s)
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
200 LFM (1.0 m/s)
2
0
2
100 LFM (0.5 m/s)
0
25
40
55
Ambient Air Temperature (°C)
70
85
25
40
55
70
85
Ambient Air Temperature (°C)
Figure 3: Thermal Derating (max output current vs. ambient air temperature)
for encased converter without heatsink, at airflow rates of 100 LFM through 400
LFM. Air flows across the converter from input to output (nominal input voltage).
Figure 4: Thermal Derating (max output current vs. ambient air temperature)
for encased converter with 1/2" heatsink, at airflow rates of 100 LFM through
400 LFM. Air flows across the converter from input to output (nominal input
voltage).
Figure 5: Output Voltage Response to Step-Change in Load Current (50%-
75%-50% of Iout(max); dI/dt = 0.1A/µs. Load cap: 1µF ceramic cap. Ch 1:
Vout, Ch 2: Iout (5 A/div).
Figure 6: Output Voltage Response to Step-Change in Input Voltage (250 V/
ms), at Max. load current. Load cap: 100µF electrolytic cap and 1µF ceramic
cap. Ch 1: Vout, Ch 2: Vin.
Product # IQ24xxxHZXxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005664 Rev. D
11/18/13
Page 15
Input:18-36V
Output:50V
Current:10A
Part No.:IQ24500HZx10
Technical Specification
IQ24500HZx10 ELECTRICAL CHARACTERISTICS (50.0 Vout)
Ta = 25 °C, airflow rate = 300 LFM, Vin = 24V dc unless otherwise noted; full operating temperature range is -40 °C to +100 °C baseplate temperature
with appropriate power derating. Specifications subject to change without notice.
Parameter
Min.
Typ.
Max. Units Notes & Conditions
INPUT CHARACTERISTICS
Maximum Input Current
No-Load Input Current
33
A
mA
mA
V
100% Load, 18V Vin, trimmed up 10%
300
100
4
380
160
Disabled Input Current
Response to Input Transient
Input Terminal Ripple Current
Recommended Input Fuse
OUTPUT CHARACTERISTICS
Output Voltage Set Point
Output Voltage Regulation
Over Line
See Figure 6
500
mA
A
RMS
40
Fast acting external fuse recommended
49.18
50.00
50.70
V
See Note 3
±0.25
±0.25
%
%
mV
V
Over Load
Over Temperature
-1250
48.50
1250
Total Output Voltage Range
Output Voltage Ripple and Noise
Peak-to-Peak
51.50
Over sample, line, load, temperature & life
20 MHz bandwidth; see Note 1
Full load
250
60
500
120
10
mV
mV
A
RMS
Full load
Operating Output Current Range
Output DC Current-Limit Inception
Output DC Current-Limit Shutdown Voltage
Back-Drive Current Limit while Enabled
Back-Drive Current Limit while Disabled
Maximum Output Capacitance
Output Voltage during Load Current Transient
Step Change in Output Current (0.2 A/µs)
Settling Time
0
Subject to thermal derating
Output voltage 10% Low
See Note 2
11.0
12.0
20
3
13.0
A
V
2
0
4
7
A
Negative current drawn from output
Negative current drawn from output
Vout nominal at full load (resistive load)
3
mA
µF
1000
2
8
V
ms
%
%
V
50% to 75% to 50% Iout max
To within 1% Vout nom
Output Voltage Trim Range
Output Voltage Remote Sense Range
Output Over-Voltage Protection
EFFICIENCY
-50
10
10
Across Pins 8&4; Common Figures 3-5;
Across Pins 8&4
56.5
59.0
61.5
Over full temp range
100% Load
94
95
%
%
See Figure 1 for efficiency curve
See Figure 1 for efficiency curve
50% Load
Note 1: Output is terminated with 1 µF ceramic capacitor. For applications requiring reduced output voltage ripple and noise, consult SynQor applications
support (e-mail: support@synqor.com)
Note 2: If the output voltage falls below the Output DC Current Limit Shutdown Voltage for more than 50ms, then the unit will enter into hiccup mode,
with a 500ms off-time
Note 3: Line and load regulation is limited by duty cycle quantization and does not indicate a shift in the internal voltage reference
Product # IQ24xxxHZXxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005664 Rev. D
11/18/13
Page 16
Input:18-36V
Output:50V
Current:10A
Part No.:IQ24500HZx10
Technical Specification
100
95
90
85
80
75
70
65
60
60
55
50
45
40
35
30
25
20
15
10
5
18Vin
24Vin
36Vin
18Vin
24Vin
36Vin
0
0
2
4
6
8
10
0
2
4
6
8
10
Load Current (A)
Load Current (A)
Figure 1: Efficiency at nominal output voltage vs. load current for minimum,
Figure 2: Power Dissipation at nominal output voltage vs. load current for
nominal, and maximum input voltage at 25°C.
minimum, nominal, and maximum input voltage at 25°C.
10.0
9.0
8.0
7.0
6.0
5.0
4.0
10.0
9.0
8.0
7.0
6.0
5.0
4.0
3.0
3.0
400 LFM (2.0 m/s)
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
300 LFM (1.5 m/s)
2.0
2.0
200 LFM (1.0 m/s)
200 LFM (1.0 m/s)
1.0
1.0
100 LFM (0.5 m/s)
100 LFM (0.5 m/s)
0.0
0.0
25
40
55
70
85
25
40
55
70
85
Ambient Air Temperature (°C)
Ambient Air Temperature (°C)
Figure 3: Thermal Derating (max output currnet vs. ambient air temperature)
for encased converter without heatsink, at airflow rates of 100 LFM through 400
LFM. Air flows across the converter from input to output (nominal input voltage).
Figure 4: Thermal Derating (max output current vs. ambient air temperature)
for encased converter with 1/2" heatsink, at airflow rates of 100 LFM through
400 LFM. Air flows across the converter from input to output (nominal input
voltage).
Figure 5: Output Voltage Response to Step-Change in Load Current (50%-
75%-50% of Iout(max); dI/dt = 0.1A/µs. Load cap: 100µF electrolytic cap and
1µF ceramic cap. Ch 1: Vout, Ch 2: Iout (5 A/div).
Figure 6: Output Voltage Response to Step-Change in Input Voltage (250 V/
ms), at Max. load current. Load cap: 100µF electrolytic cap and 1µF ceramic
cap. Ch 1: Vout, Ch 2: Vin.
Product # IQ24xxxHZXxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005664 Rev. D
11/18/13
Page 17
Technical
Specification
IQ24xxxHZXxx
Application Section
BASIC OPERATION AND FEATURES
CONTROL FEATURES
REMOTE ON/OFF (Pin 2): The ON/OFF input, Pin 2, permits
the user to control when the converter is on or off. This input is
referenced to the return terminal of the input bus, Vin(-).
This converter series uses
a
two-stage power conversion
topology. The first stage keeps the output voltage constant over
variations in line, load, and temperature. The second stage uses
a transformer to provide the functions of input/output isolation
and voltage step-down to achieve the low output voltage required.
In negative logic versions, the ON/OFF signal is active low
(meaning that a low voltage turns the converter on). In positive
logic versions, the ON/OFF input is active high (meaning that a
high voltage turns the converter on). Figure A details possible
circuits for driving the ON/OFF pin. Figure B is a detailed look of
the internal ON/OFF circuitry. See Ordering Information page for
available enable logics.
Both the first stage and the second stage switch at a fixed
frequency for predictable EMI performance. Rectification of the
transformer’s output is accomplished with synchronous rectifiers.
These devices, which are MOSFETs with a very low on-state
resistance, dissipate significantly less energy than Schottky
diodes, enabling the converter to achieve high efficiency.
REMOTE SENSE Pins 8(+) and 6(-): The SENSE(+) and
SENSE(-) inputs correct for voltage drops along the conductors
that connect the converter’s output pins to the load.
Pin 8 should be connected to Vout(+) and Pin 6 should be
connected to Vout(-) at the point on the board where regulation
is desired. If these connections are not made, the converter will
deliver an output voltage that is slightly higher than its specified
value.
Dissipation throughout the converter is so low that it does not
require a heatsink or even a baseplate for operation in many
applications; however, adding a heatsink provides improved
thermal derating performance in extreme situations. To further
withstand harsh environments and thermally demanding
applications, certain models are available totally encased. See
Ordering Information page for available thermal design options.
Note: The Output Over-Voltage Protection circuit senses the
voltage across the output (Pins 9 and 5) to determine when it
should trigger, not the voltage across the converter’s sense leads
(Pins 8 and 6). Therefore, the resistive drop on the board should
be small enough so that output OVP does not trigger, even during
load transients.
SynQor half-brick converters use the industry standard footprint
and pin-out.
ON/OFF
ON/OFF
ON/OFF
OUTPUT VOLTAGE TRIM (Pin 7): The TRIM input permits the
user to adjust the output voltage across the sense leads up or down
according to the trim range specifications. SynQor uses industry
standard trim equations.
Vin(_)
Vin(_)
Vin(_)
Remote Enable Circuit
To decrease the output voltage, the user should connect a resistor
between Pin 7 (TRIM) and Pin 6 (SENSE(–) input). For a desired
decrease of the nominal output voltage, the value of the resistor
should be:
Negative Logic
(Permanently
Enabled)
Positive Logic
(Permanently
Enabled)
5V
ON/OFF
100%
– 2
TTL/
CMOS
ON/OFF
Vin(_)
Rtrim-down =
(
|
)
kΩ
Δ%
where
Vin(_)
Open Collector Enable Circuit
Vnominal – Vdesired
Direct Logic Drive
Δ% =
|
× 100%
Vnominal
Figure A: Various Circuits for Driving the ON/OFF Pin
18V(max)
5V
To increase the output voltage, the user should connect a resistor
between Pin 7 (TRIM) and Pin 8 (SENSE(+) input). For a desired
increase of the nominal output voltage, the value of the resistor
should be:
50k
ON/OFF
10k
Vnominal
– 2
(
)
× Vdesired + Vnominal
kΩ
TTL
Rtrim-up =
1.225
Vdesired – Vnominal
Vin(_)
Figure B: Internal ON/OFF Pin Circuitry
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Application Section
The Trim Graph in Technical Features shows the relationship
between the trim resistor value and Rtrim-up and Rtrim-down,
showing the total range the output voltage can be trimmed up or
down.
Note: The TRIM feature does not affect the voltage at which the
output over-voltage protection circuit is triggered. Trimming the
output voltage too high may cause the over-voltage protection
circuit to engage, particularly during transients.
Protection Features
Input Under-Voltage Lockout (UVLO): The converter is
designed to turn off when the input voltage is too low, helping to
avoid an input system instability problem, which is described in
more detail in the application note titled “Input System Instability”
on the SynQor website. The lockout circuitry is a comparator with
DC hysteresis. When the input voltage is rising, it must exceed the
typical “Turn-On Voltage Threshold” value* before the converter
will turn on. Once the converter is on, the input voltage must
fall below the typical Turn-Off Voltage Threshold value before the
converter will turn off.
It is not necessary for the user to add capacitance at the TRIM pin.
The node is internally filtered to eliminate noise.
Output Current Limit (OCP): If the output current exceeds
the “Output DC Current Limit Inception” value*, then a fast linear
current limit controller will reduce the output voltage to maintain
a constant output current. If as a result, the output voltage falls
below the “Output DC Current Limit Shutdown Voltage”* for more
than 50 ms, then the unit will enter into hiccup mode, with a 500
ms off-time. The unit will then automatically attempt to restart.
Total DC Variation of Vout: For the converter to meet its full
specifications, the maximum variation of the DC value of Vout, due
to both trimming and remote load voltage drops, should not be
greater than that specified for the output voltage trim range.
Back-Drive Current Limit: If there is negative output current
of a magnitude larger than the “Back-Drive Current Limit while
Enabled” specification*, then a fast back-drive limit controller will
increase the output voltage to maintain a constant output current.
If this results in the output voltage exceeding the “Output Over-
Voltage Protection” threshold*, then the unit will shut down.
Output Over-Voltage Limit (OVP): If the voltage across the
output pins exceeds the Output Over-Voltage Protection threshold,
the converter will immediately stop switching. This prevents
damage to the load circuit due to 1) excessive series resistance in
output current path from converter output pins to sense point, 2)
a release of a short-circuit condition, or 3) a release of a current
limit condition. Load capacitance determines exactly how high
the output voltage will rise in response to these conditions. After
500ms the converter will automatically restart for all but the S
Feature Set option, which is latching and will not restart until input
power is cycled or the ON/OFF input is toggled.
Over-Temperature Shutdown (OTP): A temperature sensor
on the converter senses the average temperature of the module.
The thermal shutdown circuit is designed to turn the converter off
when the temperature at the sensed location reaches the “Over-
Temperature Shutdown” value*. It will allow the converter to turn
on again when the temperature of the sensed location falls by the
amount of the “Over-Temperature Shutdown Restart Hysteresis”
value*.
Startup Inhibit Period: The Startup Inhibit Period ensures that
the converter will remain off for approximately 500 ms when it is
shut down due to a fault. This generates a 2 Hz “hiccup mode,”
which prevents the converter from overheating. In all, there
are three ways that the converter can be shut down, initiating a
Startup Inhibit Period:
• Output Over-Voltage Protection
• Current Limit
• Short Circuit Protection
* See Electrical Characteristics section.
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Technical
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IQ24xxxHZXxx
Application Section
APPLICATION CONSIDERATIONS
Input System Instability: This condition can occur because any
DC-DC converter appears incrementally as a negative resistance
load. A detailed application note titled “Input System Instability” is
available on the SynQor website which provides an understanding
of why this instability arises, and shows the preferred solution for
correcting it.
Thermal Considerations: For baseplated and encased versions,
the max operating baseplate temperature, TB, is 100ºC. Refer to
the Thermal Derating Curves in the Technical Figures section to
see the available output current at baseplate temperatures below
100ºC.
A power derating curve can be calculated for any heatsink that is
attached to the base-plate of the converter. It is only necessary to
determine the thermal resistance, RTHBA, of the chosen heatsink
between the baseplate and the ambient air for a given airflow
rate. This information is usually available from the heatsink vendor.
The following formula can the be used to determine the maximum
power the converter can dissipate for a given thermal condition if
its base-plate is to be no higher than 100ºC.
Application Circuits: A typical circuit diagram, Figure C below
details the input filtering and voltage trimming.
Input Filtering and External Input Capacitance: Figure
D below shows the internal input filter components. This filter
dramatically reduces input terminal ripple current, which otherwise
could exceed the rating of an external electrolytic input capacitor.
The recommended external input capacitance is specified in the
Input Characteristics section of the Electrical Specifications. More
detailed information is available in the application note titled “EMI
Characteristics” on the SynQor website.
max
100ºC - TA
RTHBA
=
P
diss
This value of maximum power dissipation can then be used in
conjunction with the data shown in the Power Dissipation Curves
in the Technical Figures section to determine the maximum load
current (and power) that the converter can deliver in the given
thermal condition.
Output Filtering and External Output Capacitance: The
internal output filter components are shown in Figure D below.
This filter dramatically reduces output voltage ripple. Some
minimum external output capacitance is required, as specified in
the Output Characteristics area of the Electrical Characteristics
section. No damage will occur without this capacitor connected,
but peak output voltage ripple will be much higher.
For convenience, Thermal Derating Curves are provided in the
Technical Figures section.
Vout(+)
Vin(+)
Vsense(+)
Electrolytic
Capacitor
External
Input
Filter
Rtrim-up
Vin
Trim
or
ON/OFF
Vin(_)
Cload
Rtrim-down
Iload
Vsense(_)
Vout(_)
Figure C: Typical Application Circuit (negative logic unit, permanently enabled)
Lin
Vin(+)
Vout(+)
Vout(-)
Regulation
Stage
Current
Sense
Isolation
Stage
C2
C1
Vin(_)
Figure D: Internal Input and Output Filter Diagram (component values listed in Electrical Characteristics section)
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Technical
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IQ24xxxHZXxx
Application Section
ACTIVE CURRENT SHARE
• The SHARE(+) and SHARE(-) pins should be routed between
all paralleled units as a differential pair.
Overview: The full-featured option, specified by an “F” in the
last character in the part number, has current sharing operation
supported, achieved by adding two additional pins: SHARE(+) and
SHARE(-).
• The ON/OFF pins should be connected in parallel, and
rise/fall times should be kept below 2 ms.
Connection of Paralleled Units: Up to 100 units can be placed in
parallel. In this current share architecture, one unit is dynamically
chosen to act as a master, controlling all other units. It cannot be
predicted which unit will become the master at any given time, so
units should be wired symmetrically (see Figures E & F).
• The SENSE(+) and SENSE(-) pins should be connected either
locally at each unit or separately to a common sense point.
If an output common-mode choke is used, sense lines
should be connected on the module-side of the choke.
• If the TRIM pin is used, then each unit should have its own
trim resistor connected locally between TRIM and SENSE(+)
or SENSE(-).
• Input power pins and output power pins should be tied
together between units, preferably with wide overlapping
copper planes, after any input common-mode choke.
470 nH (nom)
Vout(+)
Vin(+)
Sense(+)
A
On/Off
A
B
≥1 nF
Share(+)
Share(-)
Trim
Load
≥10 μF
Elec.
Cap.
Sense(-)
Vout(-)
B
Vin(-)
470 nH (nom)
Vin(+)
On/Off
Vout(+)
Sense(+)
A
B
Electrolytic
Capacitor
Share(+)
Share(-)
Trim
≥10 μF
Sense(-)
Vout(-)
Vin(-)
Up to 100 Units
470 nH (nom)
Vin(+)
On/Off
Vout(+)
Sense(+)
A
B
Electrolytic
Capacitor
Share(+)
Share(-)
Trim
≥10 μF
Sense(-)
Vout(-)
Vin(-)
Figure E: Typical Application Circuit for Paralleling of Full-Featured Units with an Input Common-Mode Choke. If an input common-mode choke is used, Vin(-)
MUST be tied together AFTER the choke for all units. 470 nH (nominal) inductor or an output common-mode choke is required for outputs >18 V. See Figure F for
output common-mode choke configuration.
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Technical
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Application Section
Automatic Configuration: The micro-controller inside each power
converter unit is programmed at the factory with a unique chip number.
In every other respect, each shared unit is identical and has the same
orderable part number.
Resonance Between Output Capacitors is Possible: When
multiple higher-voltage modules are paralleled, it is possible to
excite a series resonance between the output capacitors internal to
the module and the parasitic inductance of the module output pins.
This is especially likely at higher output voltages where the module
internal capacitance is relatively small. This problem is independent
of external output capacitance. For modules with an output voltage
greater than 18 V, to ensure that this resonant frequency is below the
switching frequency it is recommended to add a nominal 470 nH of
inductance, located close to the module, in series with each converter
output. There must be at least 10 μF of capacitance per converter,
located on the load-side of that inductor. The inductance could be from
the leakage inductance of a secondary-side common-mode choke; in
which case the output capacitor should be appropriately sized for the
chosen choke. When using an output common-mode choke, the Sense
lines must be connected on the module-side of the common-mode
choke (see Figure F).
RS-485 Physical Layer: The internal RS-485 transceiver includes
many advanced protection features for enhanced reliability:
• Current Limiting and Thermal Shutdown for
Driver Overload Protection
• IEC61000 ESD Protection to +/- 16.5 kV
• Hot Plug Circuitry – SHARE(+) and SHARE(-)
Outputs Remain Tri-State During Power-up/Power-down
On initial startup (or after the master is disabled or shuts down),
each unit determines the chip number of every other unit currently
connected to the shared serial bus formed by the SHARE(+) and
SHARE(-) pins. The unit with the highest chip number dynamically
reconfigures itself from slave to master. The rest of the units (that do
not have the highest chip number) become slaves.
The master unit then broadcasts its control state over the shared serial
bus on a cycle-by-cycle basis. The slave units interpret and implement
the control commands sent by the master, mirroring every action of
the master unit.
If the master is disabled or encounters a fault condition, all units will
immediately shut down, and if the master unit is unable to restart,
then the unit with the next highest chip number will become master. If
a slave unit is disabled or encounters a fault condition, all other units
continue to run, and the slave unit can restart seamlessly.
Automatic Interleaving: The slave units automatically lock
frequency with the master, and interleave the phase of their switching
transitions for improved EMI performance. To obtain the phase angle
relative to the master, each slave divides 360 degrees by the total
number of connected units, and multiples the result by its rank among
chip numbers of connected units.
Internal Schottky Diode Termination: Despite signaling at high
speed with fast edges, external termination resistors are not necessary.
Each receiver has four Schottky diodes built in, two for each line in the
differential pair. These diodes clamp any ringing caused by transmission
line reflections, preventing the voltage from going above about 5.5 V
or below about -0.5 V. Any subsequent ringing then inherently takes
place between 4.5 and 5.5 V or between -0.5 and 0.5 V. Since each
receiver on the bus contains a set of clamping diodes to clamp any
possible transmission line reflection, the bus does not necessarily need
to be routed as a daisy-chain.
ORing Diodes placed in series with the converter outputs must also
have a resistor smaller than 500 Ω placed in parallel. This resistor
keeps the output voltage of a temporarily disabled slave unit consistent
with the active master unit. If the output voltage of the slave unit
were allowed to totally discharge, and the slave unit tried to restart, it
would fail because the slave reproduces the duty cycle of the master
unit, which is running in steady state and cannot repeat an output
voltage soft-start.
Pins SHARE(+) and SHARE(-) are referenced to Vin(-), and therefore
should be routed as a differential pair near the Vin(-) plane for optimal
signal integrity. The maximum difference in voltage between Vin(-
) pins of all units on the share-bus should be kept within 0.3 V to
prevent steady-state conduction of the termination diodes. Therefore,
the Vin(-) connections to each unit must be common, preferably
connected by a single copper plane.
Share Accuracy: Inside each converter micro-controller, the duty
cycle is generated digitally, making for excellent duty cycle matching
between connected units. Some small duty cycle mismatch is caused
by (well controlled) process variations in the MOSFET gate drivers.
However, the voltage difference induced by this duty cycle mismatch
appears across the impedance of the entire power converter, from
input to output, multiplied by two, since the differential current flows
out of one converter and into another. So, a small duty cycle mismatch
yields very small differential currents, which remain small even when
100 units are placed in parallel.
Common-Mode Filtering must be a single primary side choke handling
the inputs from all the paralleled units, or multiple chokes placed on
the secondary side. This ensurses a solid Vin(-) plane is maintained
between units. Adding a common-mode choke at the output eliminates
the need for the 470 nH indcutor at the output of shared units when
Vout > 18 V. If an output common-mode choke is used, sense
connections must be made on the module-side of the choke.
In other current-sharing schemes, it is common to have a current-
sharing control loop in each unit. However, due to the limited bandwidth
of this loop, units do not necessarily share current on startup or during
transients before this loop has a chance to respond. In contrast, the
current-sharing scheme used in this product has no control dynamics:
control signals are transmitted fast enough that the slave units can
mirror the control state of the master unit on a cycle-by-cycle basis,
and the current simply shares properly, from the first switching cycle
to the last.
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Technical
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Application Section
Vin(+)
On/Off
Vout(+)
Sense(+)
≥1 nF
Share(+)
Share(-)
Trim
Load
Elec.
Cap.
Sense(-)
Vout(-)
Vin(-)
Vin(+)
On/Off
Vout(+)
Sense(+)
Electrolytic
Capacitor
Share(+)
Share(-)
Trim
Sense(-)
Vout(-)
Vin(-)
Up to 100 Units
Vin(+)
On/Off
Vout(+)
Sense(+)
Electrolytic
Capacitor
Share(+)
Share(-)
Trim
Sense(-)
Vout(-)
Vin(-)
Figure F: Typical Application Circuit for Paralleling of Full-Featured Units with an Output Common-Mode Choke. When using an output common-mode choke,
SENSE lines must be connected on the module-side of the choke. See Figure E for configuration with an input common-mode choke.
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Technical
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IQ24xxxHZXxx
Standards & Qualification Testing
Parameter
Notes & Conditions
STANDARDS COMPLIANCE
UL 60950-1/R:2011-12
Basic Insulation
CAN/CSA-C22.2 No. 60950-1/A1:2011
EN 60950-1/A12:2011
Certified by TUV
Note: An external input fuse must always be used to meet these safety requirements. Contact SynQor for official safety certificates on new
releases or download from the SynQor website.
Parameter
QUALIFICATION TESTING
Life Test
# Units Test Conditions
32
5
95% rated Vin and load, units at derating point, 1000 hours
Vibration
10-55 Hz sweep, 0.060" total excursion, 1 min./sweep, 120 sweeps for 3 axis
100g minimum, 2 drops in x, y, and z axis
Mechanical Shock
Temperature Cycling
Power/Thermal Cycling
Design Marginality
Humidity
5
10
5
-40 °C to 100 °C, unit temp. ramp 15 °C/min., 500 cycles
Toperating = min to max, Vin = min to max, full load, 100 cycles
Tmin-10 °C to Tmax+10 °C, 5 °C steps, Vin = min to max, 0-105% load
85 °C, 95% RH, 1000 hours, continuous Vin applied except 5 min/day
5
5
Solderability
15 pins MIL-STD-883, method 2003
70,000 feet (21 km), see Note
Altitude
2
Note: A conductive cooling design is generally needed for high altitude applications because of naturally poor convective cooling at rare atmospheres.
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Technical
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IQ24xxxHZXxx
Standard Mechanical Diagram
2.486 .020 [63.14
0.5]
2.00 [50.8 ]
1.400 [35.56 ]
1.000 [25.4 ]
.700 [17.78 ]
.400 [10.16 ]
SIDE VIEW
+.002
-.005
+0.05
.512
.163
[4.14 ]
13
[
-0.12
]
OVERALL
HEIGHT
.243 .020
[6.17 0.5]
9
8
7
6
5
.243 .020
[6.17 0.5]
2.386 .020
[60.6
0.5]
TOP VIEW
1.90
[48.3 ]
1.90
[48.3 ]
.233 .020
[5.92
0.5]
1
2
B
3
4
+.007
.027
THRU HOLE
M3 (SEE NOTE 8)
STANDOFFS (4)
-.010
+0.17
.400 [10.16 ]
0.69
[
-0.25
]
.800 [20.32 ]
1.00 [25.4 ]
BOTTOMSIDE CLEARANCE
.543 .020
[13.79 0.5]
1.400 [35.56 ]
NOTES
PIN DESIGNATIONS
Pin
Name
Vin(+)
Function
1)
2)
3)
Applied torque per screw should not exceed 6in-lb. (0.7 Nm).
1
2
B
Positive input voltage
Baseplate flatness tolerance is 0.004” (.10 mm) TIR for surface.
TTL input to turn converter on and off,
referenced to Vin(–), with internal pull up.
ON/OFF
Pins 1-4, 6-8, and B are 0.040” (1.02mm) diameter, with 0.080”
(2.03mm) diameter standoff shoulders.
SHARE(+)
Active current share differential pair
(See note 4)
4)
Pins 5 and 9 are 0.080” (2.03 mm) diameter with 0.125”
(3.18 mm) diameter standoff shoulders.
3
4
5
6
7
8
9
SHARE(-)
Vin(–)
Vout(–)
SENSE(–)
TRIM
Negative input voltage
Negative output voltage
Negative remote sense (See note 1)
Output voltage trim(See note 2)
Positive remote sense (See note 3)
Positive output voltage
5)
6)
7)
8)
9)
All Pins: Material - Copper Alloy; Finish - Matte Tin over Nickel plate
Undimensioned components are shown for visual reference only.
Weight: 4.9 oz (139 g)
SENSE(+)
Vout(+)
Threaded and Non-Threaded options available
All dimensions in inches (mm).
Tolerances:
Notes:
1)
SENSE(–) should be connected to Vout(–) either remotely or at the converter.
x.xx +/-0.02 in. (x.x +/-0.5mm)
x.xxx +/-0.010 in. (x.xx +/-0.25mm)
unless otherwise noted.
2)
3)
Leave TRIM pin open for nominal output voltage.
SENSE(+) should be connected to Vout(+) either remotely or at the
converter.
11) Workmanship: Meets or exceeds IPC-A-610C Class II
4)
Full-Featured option only. Pin 3 and Pin B not populated on standard model.
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Technical
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IQ24xxxHZXxx
Flanged Mechanical Diagram
3.15
[80.0]
1.400[35.56]
1.000[25.40]
0.700[17.78]
0.400[10.16]
2.950[74.93]
0.18[4.6]
SEE NOTES 5 & 6
2.486±0.020
[63.14±0.50]
.500 ± .025
[12.7± 0.63]
OVERALL
USE W/ 4-40 OR
M3 SCREW (6x)
RECOM. TORQUE
3 in.lb
HEIGHT
6
7
8
5
9
.13[3.3]
0.01 [0.2]
1.900
[48.26]
BOTTOM VIEW
TOP VIEW
1.61
[40.9]
1.87
[47.4]
2.386± 0.020
[60.60± 0.50]
0.96
[24.4]
1
4
2
1
0.31
[7.9]
0.027±0.020
[0.69±0.50]
0.400[10.16]
1.400[35.56]
0.125
[3.18]
0.543±0.020 [13.79±0.50]
0.775±0.020 [19.69±0.50]
0.875±0.020 [22.23±0.50]
NOTES
PIN DESIGNATIONS
Pin
1
Name
Vin(+)
Function
1)
Applied torque per screw should not exceed 5in-lb. (0.7 Nm)
Positive input voltage
(3in-lb. recommended).
2)
3)
Baseplate flatness tolerance is 0.01” (.25 mm) TIR for surface.
TTL input to turn converter on and off,
referenced to Vin(–), with internal pull up.
2
ON/OFF
Pins 1-4, 6-8 and B are 0.040” (1.02mm) diameter, with 0.080”
(2.03mm) diameter standoff shoulders.
B
SHARE(+)
Active current share differential pair
(See note 4)
4)
Pins 5 and 9 are 0.080” (2.03 mm) diameter with 0.125”
(3.18 mm) diameter standoff shoulders.
3
4
5
6
7
8
9
SHARE(-)
Vin(–)
Vout(–)
SENSE(–)
TRIM
Negative input voltage
Negative output voltage
Negative remote sense (See note 1)
Output voltage trim(See note 2)
Positive remote sense (See note 3)
Positive output voltage
5)
6)
7)
9)
All Pins: Material - Copper Alloy; Finish - Matte Tin over Nickel plate
Undimensioned components are shown for visual reference only.
Weight: 4.8oz (137g)
SENSE(+)
Vout(+)
All dimensions in inches (mm).
Tolerances:
Notes:
1)
x.xx +/-0.02 in. (x.x +/-0.5mm)
x.xxx +/-0.010 in. (x.xx +/-0.25mm)
unless otherwise noted.
SENSE(–) should be connected to Vout(–) either remotely or at the converter.
2)
3)
Leave TRIM pin open for nominal output voltage.
10) Workmanship: Meets or exceeds IPC-A-610C Class II
SENSE(+) should be connected to Vout(+) either remotely or at the
converter.
4)
Full-Featured option only. Pin 3 and Pin B not populated on standard model.
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Technical
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IQ24xxxHZXxx
PART NUMBERING SYSTEM
ORDERING INFORMATION
The part numbering system for SynQor’s dc-dc converters follows the format
shown in the example below.
The tables below show the valid model numbers and ordering options for
converters in this product family. When ordering SynQor converters, please
ensure that you use the complete 15 character part number consisting of
the 12 character base part number and the additional characters for options.
Add “-G” to the model number for 6/6 RoHS compliance.
IQ 24 050 H Z C 60 N R A - G
Input
Voltage
Output
Voltage
Max Output
Current
Model Number
6/6 RoHS
IQ24050HZw60xyz
IQ24120HZw42xyz
IQ24150HZw34xyz
IQ24240HZw21xyz
IQ24280HZw18xyz
IQ24400HZw13xyz
IQ24500HZw10xyz
18-36
18-36
18-36
18-36
18-36
18-36
18-36
5.0 V
12 V
15 V
24 V
28 V
40 V
50 V
60 A
42 A
34 A
21 A
18 A
12.5 A
10 A
Options (see
Ordering Information)
Output Current
Thermal Design
Performance Level
Package Size
Output Voltage
Input Voltage
Product Family
The following options must be included in place of the w x y z spaces in the
model numbers listed above.
The first 12 characters comprise the base part number and the last 3
characters indicate available options. The “-G” suffix indicates 6/6 RoHS
compliance.
Options Description
Enable
Thermal Design
Pin Style
Feature Set
Logic
C - Encased
A - Standard w/ Auto-
Recovery OVP
N - Negative R - 0.180" F - Full-Feature
S - Standard w/
D - Encased with Non-Threaded
Baseplate
V - Encased with Flanged
Baseplate
Application Notes
A variety of application notes and technical white papers can be downloaded
in pdf format from our website.
Latching OVP
RoHS Compliance: The EU led RoHS (Restriction of Hazardous
Substances) Directive bans the use of Lead, Cadmium, Hexavalent
Chromium, Mercury, Polybrominated Biphenyls (PBB), and Polybrominated
Diphenyl Ether (PBDE) in Electrical and Electronic Equipment. This SynQor
product is 6/6 RoHS compliant. For more information please refer to
Not all combinations make valid part numbers, please contact SynQor for
availability. See the Product Summary web page for more options.
SynQor’s RoHS addendum available at our RoHS Compliance / Lead
Free Initiative web page or e-mail us at rohs@synqor.com
.
PATENTS
SynQor holds the following U.S. patents, one or more of which apply to
each product listed in this document. Additional patent applications may
be pending or filed in the future.
5,999,417
6,894,468
7,119,524
7,765,687
6,222,742
6,896,526
7,269,034
7,787,261
6,545,890
6,927,987
7,272,021
8,023,290
6,577,109
7,050,309
7,272,023
8,149,597
6,594,159
7,072,190
7,558,083
8,493,751
6,731,520
7,085,146
7,564,702
Contact SynQor for further information and to order:
Phone:
978-849-0600
Toll Free: 888-567-9596
Warranty
Fax:
978-849-0602
power@synqor.com
www.synqor.com
SynQor offers a two (2) year limited warranty. Complete warranty
information is listed on our website or is available upon request from
SynQor.
E-mail:
Web:
Address: 155 Swanson Road
Boxborough, MA 01719
USA
Information furnished by SynQor is believed to be accurate and reliable.
However, no responsibility is assumed by SynQor for its use, nor for any
infringements of patents or other rights of third parties which may result
from its use. No license is granted by implication or otherwise under any
patent or patent rights of SynQor.
Product # IQ24xxxHZXxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005664 Rev. D
11/18/13
Page 27
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