PQ60033EGw20xyz [SYNQOR]
Fixed frequency switching provides predictable EMI performance;
| 型号： | PQ60033EGw20xyz |
| 厂家： | 
SYNQOR WORLDWIDE HEADQUARTERS |
| 描述： | Fixed frequency switching provides predictable EMI performance |
| 文件： | 总13页 (文件大小：1260K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Technical
Specification
PQ60033EGx20
48V
Input
3.3V
Output
20A
Current
2000Vdc
Isolation
Eighth-brick
DC-DC Converter
The PQ60033EGx20 PowerQor® Giga eighth-brick
converter is a next-generation, board-mountable,
isolated, fixed switching frequency DC/DC converter
that uses synchronous rectification to achieve
extremely high conversion efficiency. The power
dissipated by the converter is so low that a heatsink
is not required, which saves cost, weight, height,
and application effort. All of the power and control
components are mounted to the multi-layer PCB
substrate with high-yield surface mount technology.
Since the PowerQor converter has no explicit thermal
interfaces, it is extremely reliable. RoHS compliant
(see page 12).
PQ60033EGL20 Module
Protection Features
Operational Features
•ꢀHighꢀefficiency,ꢀ89%ꢀatꢀhalfꢀload,ꢀ>87%ꢀatꢀfullꢀload
•ꢀInputꢀunder-voltageꢀlockoutꢀdisablesꢀconverterꢀatꢀlowꢀinputꢀ
voltage conditions
•ꢀDeliversꢀupꢀtoꢀ20ꢀampsꢀofꢀoutputꢀcurrentꢀ(66W)ꢀwithꢀminimalꢀ
derating - no heatsink required
•ꢀOutputꢀcurrentꢀlimitꢀandꢀshortꢀcircuitꢀprotectionꢀprotectsꢀ
converter and load from permanent damage and consequent
hazardous conditions
•ꢀWideꢀinputꢀvoltageꢀrange:ꢀ35Vꢀ–ꢀ75V,ꢀwithꢀ100Vꢀ100msꢀinputꢀvoltageꢀ
transient capability
•ꢀActiveꢀbackꢀbiasꢀlimitꢀpreventsꢀdamageꢀtoꢀconverterꢀfromꢀexternalꢀ
•ꢀFixedꢀfrequencyꢀswitchingꢀprovidesꢀpredictableꢀEMIꢀperformance
•ꢀNoꢀminimumꢀloadꢀrequirementꢀmeansꢀnoꢀpreloadꢀresistorsꢀrequired
load induced pre-bias
•ꢀOutputꢀover-voltageꢀprotectionꢀprotectsꢀloadꢀfromꢀdamagingꢀvoltages
•ꢀThermalꢀshutdownꢀprotectsꢀconverterꢀfromꢀabnormalꢀ
environmental conditions
Mechanical Features
Safety Features
•ꢀIndustryꢀstandardꢀeighth-brickꢀpin-outꢀconfiguration
•ꢀIndustryꢀstandardꢀsize:ꢀ0.90"ꢀxꢀ2.3"ꢀ(22.9x58.4ꢀmm)
•ꢀ2000V,ꢀ30ꢀMW input-to-output isolation provides input/output
ground separation
•ꢀTotalꢀheightꢀofꢀtheꢀEGLꢀisꢀonlyꢀ0.340"ꢀ(8.64ꢀmm),ꢀpermittingꢀbetterꢀ
airflow and smaller card pitch
•ꢀULꢀ60950-1ꢀrecognizedꢀ(USꢀ&ꢀCanada),ꢀbasicꢀinsulationꢀrating
•ꢀTUVꢀcertifiedꢀtoꢀEN60950-1
•ꢀTotalꢀweight:ꢀ0.68ꢀozꢀ(19ꢀg)
•ꢀOpenꢀframeꢀunitsꢀhaveꢀflangedꢀpinsꢀdesignedꢀtoꢀpermitꢀsurfaceꢀ
mountꢀsolderingꢀ(avoidꢀwaveꢀsolder)ꢀusingꢀFPiPꢀtechnique
•ꢀMeetsꢀ72/23/EECꢀandꢀ93/68/EECꢀdirectivesꢀwhichꢀfacilitatesꢀCEꢀ
Markingꢀinꢀuser’sꢀendꢀproduct
•ꢀBoardꢀandꢀplasticꢀcomponentsꢀmeetꢀUL94V-0ꢀflammabilityꢀrequirements
Control Features
Contents
PageꢀNo.
MechanicalꢀDiagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
PQ60033EGx20ꢀELECTRICALꢀCHARACTERISTICSꢀ. . . . . . . . . . . . . . . .3-4
Standards and Qualification Testing . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-8
Applications Section. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-12
OrderingꢀInformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
•ꢀOn/Offꢀcontrolꢀreferencedꢀtoꢀinputꢀsideꢀ(positiveꢀandꢀnegativeꢀlogicꢀ
options are available)
•ꢀRemoteꢀsenseꢀforꢀtheꢀoutputꢀvoltageꢀcompensatesꢀforꢀoutputꢀ
distribution drops
•ꢀOutputꢀvoltageꢀtrimꢀpermitsꢀcustomꢀvoltagesꢀandꢀvoltageꢀmargining
Product # PQ60033EGx20
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005349 Rev. A
09/23/09
Page 1
35-75 V
3.3 V
Input:
Output:
Current:
Package:
20 A
Eighth-brick
Technical Specification
MECHANICAL DIAGRAM
Top View
Side View
0.90(22.86)
0.600(15.24)
0.450 (11.43)
0.300 (7.62)
0.150 (3.81)
EGL max height
340 ± 01. 4
(8.64 ±0.35)
EGA max height
0.410 ± .014 (10.41)
See Note 9
0.145 (3.68)
See Note 3
0.110 (2.79)
See Note 3
8 7 6 5 4
2.00
(50.8)
2.30
(58.42)
0.14
(3.56)
EGA
Bottom side
min clearance
0.089±.013
(2.26)
EGL
2
3
Bottom side
min clearance
.019 ±.013
(0.48 ±0.33)
1
PIN FAR SIDE
TYPICAL
SEE NOTES
1, 2, & 3
0.150
(3.81)
0.300 (7.62)
0.600(15.24)
See Note 9
NOTES
PIN DESIGNATIONS
1) Pins 1-3, 5-7 are 0.040” (1.02mm) diameter. with 0.080”
(2.03mm) diameter standoff shoulders.
Pin No. Name
Function
1
2
Vin(+)
Positive input voltage
2) Pins 4 and 8 are 0.062” (1.57 mm) diameter with 0.100”
(2.54 mm) diameter standoff shoulders.
ON/OFF
TTL input to turn converter
on and off, referenced to
Vin(-), with internal pull up.
3) Other pin extension lengths available. Recommended pin
length is 0.03” (0.76mm) greater than the PCB thickness.
4) All Pins: Material: Copper Alloy
Finish (RoHS 6/6) - Matte Tin over Nickel plate
5) Undimensioned components are shown for visual reference only.
6) All dimensions in inches (mm)
Tolerances: x.xx +/-0.02 in. (x.x +/-0.5mm)
x.xxx +/-0.010 in. (x.xx +/-0.25mm)
7) Weight: 0.68 oz. (19 g) typical
3
4
5
6
7
8
Vin(-)
Vout(-)
SENSE(-)
TRIM
Negative input voltage
Negative output voltage
Negative remote sense1
Output voltage trim2
SENSE(+)
Vout(+)
Positive remote sense3
Positive output voltage
8) Workmanship: Meets or exceeds IPC-A-610C Class II
9) Modules can be ordered as EGA option that have different
pins to provide a minimum bottom side clearance of 0.076”
while increasing maximum height to 0.424”. See ordering
page for more information.
10) The flanged pins are designed to permit surface mount
soldering (allowing to avoid the wave soldering process)
through the use of the flanged pin-in-paste technique.
Notes:
1. SENSE(–) should be connected to Vout(–) either remotely or at the converter.
2. Leave TRIM pin open for nominal output voltage.
3. SENSE(+) should be connected to Vout(+) either remotely or at the converter.)
Product # PQ60033EGx20
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005349 Rev. A
09/23/09
Page 2
35-75 V
3.3 V
Input:
Output:
Current:
Package:
20 A
Eighth-brick
Technical Specification
PQ60033EGx20 ELECTRICAL CHARACTERISTICS
T =25°C, airflow rate=300 LFM, Vin=48Vdc unless otherwise noted; full operating temperature range is -40°C to +100°C ambient
A
temperature with appropriate power derating. Specifications subject to change without notice.
Parameter
Min.
Typ.
Max.
Units Notes & Conditions
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Non-Operating
100
80
V
V
Continuous
Operating
Continuous
Operating Transient Protection
100
2000
100
125
18
V
100ms transient, square wave
Basic insulation, Pollution Degree 2
Isolation Voltage (input to output)
Operating Temperature
V
-40
-55
-2
°C
°C
V
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
Maximum Input Current
35
48
75
V
32
28.5
2.5
33
29.5
3.5
34
30.5
4.5
2.6
60
V
V
V
A
100% Load, 35 Vin
No-Load Input Current
40
mA
mA
Disabled Input Current
1.6
4
2
Inrush Current Transient Rating
Response to Input Transient
Input Reflected Ripple Current
Input Terminal Ripple Current
Recommended Input Fuse
Input Filter Component Values (L\C)
Recommended External Input Capacitance
OUTPUT CHARACTERISTICS
Output Voltage Set Point
Output Voltage Regulation
Over Line
0.01
A s
250
3
mV
mA
mA
A
1000V/ms input transient
RMS thru 10µH inductor; Figures 13 & 15
RMS; Figures 13 & 14
90
20
Fast blow external fuse recommended
3.3\2.2
47
µH\µF Internal values; Figure E
µF
V
Typical ESR 0.1-0.2W; Figure 13
3.267
3.207
3.300
3.333
+
+
+
0.05 \ 2
0.05 \ 2
0.15 \ 5
0.15 \ 5
%\mV
%\mV
mV
+
Over Load
+
+
50
Over Temperature
17
Total Output Voltage Range
3.393
V
Over sample, line, load, temperature & life
20MHz bandwidth; Figures 13 & 16
Full Load; Figures 13 & 16
1
Output Voltage Ripple and Noise
Peak-to-Peak
70
130
25
mV
mV
A
RMS
15
Full Load; Figures 13 & 16
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
DYNAMIC CHARACTERISTICS
Input Voltage Ripple Rejection
Output Voltage during Load Current Transient
For a Step Change in Output Current (0.1A/µs)
For a Step Change in Output Current (5A/µs)
Settling Time
0
20
Subject to thermal derating; Figures 5 - 8
Output Voltage 10% Low; Figure 17
21
22.5
2.0
0.5
10
25
A
V
A
Negative current drawn from output
50
mA
µF
“
10,000
3.3Vout at 20A Resistive Load
65
dB
120 Hz; Figure 20
90
mV
mV
µs
50% to 75% to 50% Iout max; Figure 11
50% to 75% to 50% Iout max; Figure 12
to within 1% Vout nom
100
400
Turn-On Transient
Turn-On Time
9
200
0
13
ms
ms
%
Full load, Vout=90% nom.; Figures 9 & 10
-40°C to +125°C; Figure F
Start-Up Inhibit Time
180
240
Output Voltage Overshoot
EFFICIENCY
10,000 µF load capacitance, Iout = 0A
100% Load
87.5
89
%
%
Figures 1 - 4
Figures 1 - 4
50% Load
TEMPERATURE LIMITS FOR POWER DERATING CURVES
Semiconductor Junction Temperature
Board Temperature
125
125
125
°C
°C
°C
Package rated to 150°C
UL rated max operating temp 130°C
See Figures 5 - 8 for derating curves
Transformer Temperature
ISOLATION CHARACTERISTICS
Isolation Voltage (dielectric strength)
Isolation Resistance
2000
30
V
M
W
Isolation Capacitance2
470
pF
Note 1: For applications requiring reduced output voltage ripple and noise, consult SynQor applications support (e-mail: support@synqor.com)
Note 2: Higher values of isolation capacitance can be added external to the module.
Product # PQ60033EGx20
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005349 Rev. A
09/23/09
Page 3
35-75 V
3.3 V
Input:
Output:
Current:
Package:
20 A
Eighth-brick
Technical Specification
ELECTRICAL CHARACTERISTICS (Continued)
Parameter
P
Min.
Typ.
Max.
Units Notes & Conditions
FEATURE CHARACTERISTICS
Switching Frequency
242
285
327
kHz
Regulation and Isolation stages
ON/OFF Control (Option P)
Off-State Voltage
-2
0.8
18
V
V
On-State Voltage
2.4
ON/OFF Control (Option N)
Off-State Voltage
2.4
-2
18
V
V
On-State Voltage
0.8
ON/OFF Control (Either Option)
Pull-Up Voltage
Figures A & B
Vin/6.5
40
9.2
V
Pull-Up Resistance
k
W
Output Voltage Trim Range
Output Voltage Remote Sense Range
Output Over-Voltage Protection
Over-Temperature Shutdown
Over-Temperature Shutdown Restart Hysteresis
Load Current Scale Factor
RELIABILITY CHARACTERISTICS
Calculated MTBF (Telcordia)
Calculated MTBF (MIL-217)
Field Demonstrated MTBF
-20
+10
+10
127
%
Measured across Pins 8 & 4; Figure C
Measured across Pins 8 & 4
%
%
117
122
125
10
Over full temp range; % of nominal Vout
Average PCB Temperature
°C
°C
400
See web app. note Output Load Current Calc.
o
2.5
1.1
106 Hrs. TR-NWT-000332; 80% load,300LFM, 40 C T
a
a
106 Hrs. MIL-HDBK-217F; 80% load, 300LFM, 40 C T
o
106 Hrs. See our website for details
STANDARDS COMPLIANCE
Parameter
P
Notes
STANDARDS COMPLIANCE
UL/cUL 60950-1
File # E194341, Basic insulation & pollution degree 2
Certified by TUV
EN60950-1
72/23/EEC
93/68/EEC
Needle Flame Test (IEC 695-2-2)
IEC 61000-4-2
test on entire assembly; board & plastic components UL94V-0 compliant
ESD test, 8kV - NP, 15kV air - NP (Normal Performance)
GR-1089-CORE
Section 7 - electrical safety, Section 9 - bonding/grounding
Telcordia (Bellcore) GR-513
•
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.
QUALIFICATION TESTING
Parameter
P
# Units Test Conditions
QUALIFICATION TESTING
Life Test
32
95% rated Vin and load, units at derating point, 1000 hours
Vibration
5
10-55Hz sweep, 0.060” total excursion,1 min./sweep, 120 sweeps for 3 axis
100g minimum, 2 drops in x and y axis, 1 drop in z axis
-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, 85% RH, 1000 hours, 2 minutes on and 6 hours off
MIL-STD-883, method 2003
Mechanical Shock
Temperature Cycling
Power/Thermal Cycling
Design Marginality
Humidity
5
10
5
5
5
Solderability
15 pins
•
Extensive characterization testing of all SynQor products and manufacturing processes is performed to ensure that we supply
robust, reliable product. Contact the factory for official product family qualification documents.
OPTIONS
PATENTS
SynQor provides various options for Packaging, Enable Logic, SynQor is protected under various patents. Please consult the
and Feature Set for this family of DC/DC converters. Please con- last page for further details.
sult the last page for information on available options.
Product # PQ60033EGx20
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005349 Rev. A
09/23/09
Page 4
35-75 V
3.3 V
Input:
Output:
Current:
Package:
20 A
Eighth-brick
Technical Specification
95
90
85
80
75
70
65
60
92
91
90
89
88
87
86
85
84
25 C
40 C
55 C
35 Vin
48 Vin
75 Vin
0
100
200
300
400
500
0
2
4
6
8
10
12
14
16
18
20
Air Flow (LFM)
Load Current (A)
Figure 1: Efficiency at nominal output voltage vs. load current for minimum,
nominal, and maximum input voltage at 25°C.
Figure 2: Efficiency at nominal output voltage and 60% rated power vs.
airflow rate for ambient air temperatures of 25°C, 40°C, and 55°C (nominal
input voltage).
11
10
9
92
91
90
89
88
87
8
7
6
5
4
3
25 C
86
35 Vin
40 C
2
48 Vin
85
55 C
1
75 Vin
84
0
0
100
200
300
400
500
0
2
4
6
8
10
12
14
16
18
20
Air Flow (LFM)
Load Current (A)
Figure 3: Power dissipation at nominal output voltage vs. load current for
minimum, nominal, and maximum input voltage at 25°C.
Figure 4: Power dissipation at nominal output voltage and 60% rated power
vs. airflow rate for ambient air temperatures of 25°C, 40°C, and 55°C (nominal
input voltage).
20
18
16
14
12
10
8
400 LFM (2.0 m/s)
6
300 LFM (1.5 m/s)
4
2
0
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
50 LFM (0.25 m/s)
Semiconductor junction temperature is
0
25
40
55
70
85
within 1°C of surface temperature
Ambient Air Temperature (oC)
Figure 5: Maximum output power derating curves vs. ambient air temperature
for airflow rates of 50 LFM through 400 LFM with air flowing across the
converter from pin 3 to pin 1 (nominal input voltage).
Figure 6: Thermal plot of converter at 19 amp load current (63W) with 55°C air
flowing at the rate of 200 LFM. Air is flowing across the converter from pin 3 to
pin 1 (nominal input voltage).
Product # PQ60033EGx20
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005349 Rev. A
09/23/09
Page 5
35-75 V
3.3 V
Input:
Output:
Current:
Package:
20 A
Eighth-brick
Technical Specification
20
18
16
14
12
10
8
400 LFM (2.0 m/s)
6
300 LFM (1.5 m/s)
4
2
0
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
50 LFM (0.25 m/s)
0
25
40
55
70
85
Semiconductor junction temperature is
within 1 C of surface temperature
Ambient Air Temperature (oC)
°
Figure 7: Maximum output power-derating curves vs. ambient air temperature
for airflow rates of 50 LFM through 400 LFM with air flowing from input to
output (nominal input voltage).
Figure 8: Thermal plot of converter at 17 amp load current (57W) with 55°C air
flowing at the rate of 200 LFM. Air is flowing across the converter from input to
output (nominal input voltage).
Figure 9: Turn-on transient at full load (resistive load) (10 ms/div). Input
voltage pre-applied. Ch 1: Vout (1V/div). Ch 2: ON/OFF input (5V/div)
Figure 10: Turn-on transient at zero load (10 ms/div). Ch 1: Vout (1V/div). Ch
2: ON/OFF input (5V/div).
Figure 11: Output voltage response to step-change in load current (50%-75%-
50% of Iout(max); dI/dt = 0.1A/µs). Load cap: 10µF, 100 mΩ ESR tantalum cap
and 1µF ceramic cap. Ch 1: Vout (100mV/div), Ch 2: Iout (5A/div).
Figure 12: Output voltage response to step-change in load current (50%-75%-
50% of Iout(max): dI/dt = 5A/µs). Load cap: 470µF, 30 mΩ ESR tantalum cap
and 1µF ceramic cap. Ch 1: Vout (100mV/div), Ch 2: Iout (5A/div).
Product # PQ60033EGx20
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005349 Rev. A
09/23/09
Page 6
35-75 V
3.3 V
Input:
Output:
Current:
Package:
20 A
Eighth-brick
Technical Specification
See Fig. 15
10 µH
See Fig. 14
source
impedance
See Fig. 16
iS
iC
DC/DC
Converter
VOUT
VSOURCE
1
µ
F
10
µ
F,
47 µF,
ceramic
100m
W
ESR
<1
W ESR
capacitor
tantalum
electrolytic
capacitor
capacitor
Figure 13: Test set-up diagram showing measurement points for Input Terminal
Ripple Current (Figure 14), Input Reflected Ripple Current (Figure 15) and
Output Voltage Ripple (Figure 16).
Figure 14: Input Terminal Ripple Current, i , at full rated output current and
c
nominal input voltage with 10µH source impedance and 47µF electrolytic
capacitor (200 mA/div). See Figure 13.
Figure 15: Input reflected ripple current, is, through a 10 µH source inductor at
nominal input voltage and rated load current (5 mA/div). See Figure 13.
Figure 16: Output voltage ripple at nominal input voltage and rated load current
(50 mV/div). Load capacitance: 1µF ceramic capacitor and 10µF tantalum
capacitor. Bandwidth: 20 MHz. See Figure 13.
4.0
3.5
3.0
2.5
2.0
35 V
48 V
1.5
75 V
1.0
0
5
10
15
20
25
30
Load Current (A)
Figure 17: Output voltage vs. load current showing typical current limit curves
and converter shutdown points.
Figure 18: Load current (20A/div) as a function of time when the converter
attempts to turn on into a 10 mΩ short circuit. Top trace (2.0ms/div) is an
expansion of the on-time portion of the bottom trace.
Product # PQ60033EGx20
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005349 Rev. A
09/23/09
Page 7
35-75 V
3.3 V
Input:
Output:
Current:
Package:
20 A
Eighth-brick
Technical Specification
Figure 19: Magnitude of incremental output impedance (Zout = v /i ) for
out out
Figure 20: Magnitude of incremental forward transmission (FT = v /i ) for
out out
minimum, nominal, and maximum input voltage at full rated power.
minimum, nominal, and maximum input voltage at full rated power.
Figure 21: Magnitude of incremental reverse transmission (RT = i /i ) for
in out
Figure 22: Magnitude of incremental input impedance (Z = v /i ) for
in in in
minimum, nominal, and maximum input voltage at full rated power.
minimum, nominal, and maximum input voltage at full rated power.
Product # PQ60033EGx20
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005349 Rev. A
09/23/09
Page 8
Technical
Specification
PQ60033EGx20
BASIC OPERATION AND FEATURES
CONTROL FEATURES
The PowerQor series converter uses a two-stage power conversion
topology. The first stage is a buck-converter that 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.
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(-). There are
two versions of the converter that differ by the polarity of the logic
used for the ON/OFF input.
In the positive logic version, the ON/OFF input is active high
(a high turns the converter on). In the negative logic version, the
ON/OFF signal is active low (a low turns the converter on). Figure
A details five possible circuits for driving the ON/OFF pin. Figure
B is a detailed look of the internal ON/OFF circuitry.
Both the first stage and the second stage switch at a fixed fre-
quency for predictable EMI performance. Rectification of the trans-
former’s output is accomplished with synchronous rectifiers. These
devices, which are MOSFETs with a very low on-state resistance,
dissipate far less energy than Schottky diodes. This is the primary
reason that the PowerQor converter has such high efficiency, even
at very low output voltages and very high output currents.
REMOTE SENSE(+) (Pins 7 and 5): The SENSE(+) inputs
correct for voltage drops along the conductors that connect the
converter’s output pins to the load.
Dissipation throughout the converter is so low that it does not
require a heatsink for operation. Since a heatsink is not required,
the PowerQor converter does not need a metal baseplate or
potting material to help conduct the dissipated energy to the
heatsink. The PowerQor converter can thus be built more simply
and reliably using high yield surface mount techniques on a PCB
substrate.
Pin 7 should be connected to Vout(+) and Pin 5 should be con-
nected to Vout(-) at the point on the board where regulation is
desired. A remote connection at the load can adjust for a voltage
drop only as large as that specified in this datasheet, that is
[Vout(+) - Vout(-)] – [Vsense(+) - Vsense(-)] <
Sense Range % x Vout
The PowerQor series of eighth-brick, quarter-brick and half-brick
converters uses the industry standard footprint and pin-out con-
figuration.
Pins 7 and 5 must be connected for proper regulation of the out-
put voltage. If these connections are not made, the converter will
deliver an output voltage that is slightly higher than its specified
value.
Note: The output over-voltage protection circuit senses the volt-
age across the output (pins 8 and 4) to determine when it should
trigger, not the voltage across the converter’s sense leads (pins
7 and 5). Therefore, the resistive drop on the board should be
small enough so that output OVP does not trigger, even during
load transients.
ON/OFF
ON/OFF
ON/OFF
Vin(_)
Vin(_)
Vin(_)
Negative Logic
(Permanently Enabled) (Permanently Enabled)
Positive Logic
Remote Enable Circuit
5V
ON/OFF
TTL/
CMOS
ON/OFF
Vin(_)
5V
+
Vin( )
Vin(_)
274k
Open Collector Enable Circuit
Direct Logic Drive
50k
ON/OFF
Figure A: Various circuits for driving the ON/OFF pin.
TTL
100pF
50k
Vin(_)
Figure B: Internal ON/OFF pin circuitry
Product # PQ60033EGx20
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Technical
Specification
PQ60033EGx20
OUTPUT VOLTAGE TRIM (Pin 6): The TRIM input permits the
user to adjust the output voltage across the sense leads up or
down according to the trim range specifications.
PROTECTION FEATURES
Input Under-Voltage Lockout: The converter is designed
to turn off when the input voltage is too low, helping avoid an
input system instability problem, described in more detail in the
application note titled “Input System Instability” available 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 (listed on the specifica-
tion page) 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.
To decrease the output voltage, the user should connect a resistor
between Pin 6 and Pin 5 (SENSE(-) input). For a desired decrease
of the nominal output voltage, the value of the resistor should be
511
R
=
- 10.22 (kW)
trim-down
( D%)
where
Vnominal – Vdesired
Vnominal
=
x 100%
D%
Output Current Limit: The maximum current limit remains
constant as the output voltage drops. However, once the imped-
ance of the short across the output is small enough to make the
output voltage drop below the specified Output DC Current-Limit
Shutdown Voltage, the converter turns off.
To increase the output voltage, the user should connect a resistor
between Pin 6 and Pin 7 (SENSE(+) input). For a desired increase
of the nominal output voltage, the value of the resistor should be
5.11VOUT(100+D%)
1.225D%
511
_
_
R
=
trim-up
where
(kW)
10.22
)
(
The converter then enters a “hiccup mode” where it repeatedly
turns on and off at a 5 Hz (nominal) frequency with a 5% duty
cycle until the short circuit condition is removed. This prevents
excessive heating of the converter or the load board.
D%
V
= Nominal Output Voltage
OUT
Output Over-Voltage Limit: 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 condi-
tion. Load capacitance determines exactly how high the output
voltage will rise in response to these conditions. After 200 ms the
converter will automatically restart.
Figure C graphs 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.
10,000
1,000
100
10
Over-Temperature Shutdown: A temperature sensor on the
converter senses the average temperature of the module. The ther-
mal 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.
1
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20
% decrease Vout
% increase Vout
Figure C: Trim Graph for 3.3Vout module
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.
It is not necessary for the user to add capacitance at the Trim pin.
The node is internally bypassed to eliminate noise.
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.
Product # PQ60033EGx20
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09/23/09
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Technical
Specification
PQ60033EGx20
Input Filtering and External Capacitance: Figure E below
provides a diagram showing the internal input filter components.
This filter dramatically reduces input terminal ripple current,
which otherwise could exceed the rating of an external electro-
lytic input capacitor. The recommended external input capaci-
tance is specified in the “Input Characteristics” section. More
detailed information is available in the application note titled
“EMI Characteristics” on the SynQor website.
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.
Application Circuits: Figure D below provides a typical circuit
diagram which details the input filtering and voltage trimming.
Vout(+)
Vin(+)
Vsense(+)
Electrolytic
Capacitor
External
Input
Filter
R
trim-up
or
47µF
Trim
ON/OFF
C
R
load
trim-down
_
Vsense( )
_
_
Vin( )
Vout( )
Figure D: Typical application circuit (negative logic unit, permanently enabled).
L
Vin(+)
C
_
Vin( )
Figure E: Internal Input Filter Diagram (component values listed on page 3).
Product # PQ60033EGx20
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Technical
Specification
PQ60033EGx20
Figure F shows three turn-on scenarios, where a Startup Inhibit
Period is initiated at t0, t1, and t2:
Startup Inhibit Period: The Startup Inhibit Period ensures that
the converter will remain off for approximately 200ms when it is
shut down for any reason. When an output short is present, this
generates a 5Hz “hiccup mode,” which prevents the converter
from overheating. In all, there are seven ways that the converter
can be shut down, initiating a Startup Inhibit Period:
Before time t0, when the input voltage is below the UVL threshold,
the unit is disabled by the Input Under-Voltage Lockout feature.
When the input voltage rises above the UVL threshold, the Input
Under-Voltage Lockout is released, and a Startup Inhibit Period is
initiated. At the end of this delay, the ON/OFF pin is evaluated,
and since it is active, the unit turns on.
• Input Under-Voltage Lockout
• Input Over-Voltage Shutdown (not present in Eighth-brick)
• Output Over-Voltage Protection
• Over Temperature Shutdown
• Current Limit
At time t1, the unit is disabled by the ON/OFF pin, and it cannot
be enabled again until the Startup Inhibit Period has elapsed.
When the ON/OFF pin goes high after t2, the Startup Inhibit
Period has elapsed, and the output turns on within the typical
Turn-On Time.
• Short Circuit Protection
• Turned off by the ON/OFF input
V
in
Under-Voltage
Lockout Turn-On
Threshold
ON/OFF
(pos logic)
OFF
OFF
ON
ON
ON
9ms (typical
turn on time)
V
out
200ms
(typical start-up
inhibit period)
200ms
200ms
t
t2
t0
t1
Figure F: Startup Inhibit Period (turn-on time not to scale)
Product # PQ60033EGx20
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005349 Rev. A
09/23/09
Page 12
Technical
Specification
PQ60033EGx20
PART NUMBERING SYSTEM
ORDERING INFORMATION
TheꢀpartꢀnumberingꢀsystemꢀforꢀSynQor’sꢀdc-dcꢀconvertersꢀfollowsꢀtheꢀformatꢀ
shown in the example below.
The tables below show the valid model numbers and ordering options for
convertersꢀinꢀthisꢀproductꢀfamily.ꢀꢀWhenꢀorderingꢀSynQorꢀconverters,ꢀpleaseꢀ
ensureꢀthatꢀyouꢀuseꢀtheꢀcompleteꢀ15ꢀcharacterꢀpartꢀnumberꢀconsistingꢀofꢀ
the 12 character base part number and the additional characters for options.
Addꢀ“-G”ꢀtoꢀtheꢀmodelꢀnumberꢀforꢀ6/6ꢀRoHSꢀcompliance.
PQ 60 033 E G L 20 N N S -G
6/6 RoHS
Input
Voltage
Output
Voltage
Max Output
Current
Model Number
Options (see
Ordering Information)
PQ60010EGw20xyz
PQ60010EGw25xyz
PQ60012EGw20xyz
PQ60012EGw25xyz
PQ60015EGw20xyz
PQ60015EGw25xyz
PQ60018EGw20xyz
PQ60018EGw25xyz
PQ60025EGw20xyz
PQ60025EGw25xyz
PQ60033EGw20xyz
PQ60050EGw15xyz
PQ60120EGw07xyz
PQ60150EGw05xyz
PQ60300EGw03xyz
35 - 75V
35 - 75V
35 - 75V
35 - 75V
35 - 75V
35 - 75V
35 - 75V
35 - 75V
35 - 75V
35 - 75V
35 - 75V
35 - 75V
35 - 75V
35 - 75V
35 - 75V
1.0V
1.0V
1.2V
1.2V
1.5V
1.5V
1.8V
1.8V
2.5V
2.5V
3.3V
5.0V
12V
20A
25A
20A
25A
20A
25A
20A
25A
20A
25A
20A
15A
6.25A
5.0A
3.0A
Output Current
Thermal Design
Performance Level
Package Size
Output Voltage
Input Voltage
Product Family
15V
24V
The first 12 characters comprise the base part number and the last 3
characters indicate available options. Although there are no default values
for enable logic and pin length, the most common options are negative logic
andꢀ0.145”ꢀpins.ꢀꢀTheseꢀpartꢀnumbersꢀareꢀmoreꢀlikelyꢀtoꢀbeꢀreadilyꢀavailableꢀ
inꢀstockꢀforꢀevaluationꢀandꢀprototypeꢀquantities.ꢀꢀTheꢀ“-G”ꢀsuffixꢀindicatesꢀ
6/6 RoHS compliance.
The following options must be included in place of the w x y z spaces in
theꢀ modelꢀ numbersꢀ listedꢀ above.ꢀ Modulesꢀ aboveꢀ canꢀ beꢀ orderedꢀ withꢀ anꢀ
increased bottom side board clearance and a slightly larger total height (see
pageꢀ2ꢀforꢀdimensions).ꢀꢀToꢀorderꢀreplaceꢀEGLꢀinꢀtheꢀpartꢀnumberꢀwithꢀEGA.ꢀ
ThereꢀareꢀnoꢀotherꢀdifferencesꢀfromꢀtheꢀEGLꢀunits.
Options Description: w x y z
Application Notes
Thermal Design
Enable Logic Pin Style
Feature Set
S - Standard
A variety of application notes and technical white papers can be downloaded
in pdf format from our website.
K - 0.110"
P - Positive N - 0.145"
A - Open Frame
L - Low Profile Open Frame N - Negative R - 0.180"
RoHS Compliance: Theꢀ EUꢀ ledꢀ RoHSꢀ (Restrictionꢀ ofꢀ Hazardousꢀ
Substances)ꢀ Directiveꢀ bansꢀ theꢀ useꢀ ofꢀ Lead,ꢀ Cadmium,ꢀ Hexavalentꢀ
Chromium,ꢀ Mercury,ꢀ Polybrominatedꢀ Biphenylsꢀ (PBB),ꢀ andꢀ Polybrominatedꢀ
Diphenyl Ether (PBDE) in Electrical and Electronic Equipment. This SynQor
productꢀ isꢀ 6/6ꢀ RoHSꢀ compliant.ꢀ ꢀ Forꢀ moreꢀ informationꢀ pleaseꢀ referꢀ toꢀ
SynQor’sꢀ RoHSꢀ addendumꢀ availableꢀ atꢀ ourꢀ RoHSꢀ Complianceꢀ /ꢀ Leadꢀ Freeꢀ
Y - 0.250”
See the technical addendum on the Product Selector web page for additional
specificationsꢀ onꢀ theꢀ baseplatedꢀ versionꢀ ofꢀ theꢀ PowerQorꢀ Megaꢀ &ꢀ Gigaꢀ
Eighth-brick series of converters.
Initiativeꢀwebꢀpage or e-mail us at rohs@synqor.com
.
Notꢀ allꢀ combinationsꢀ makeꢀ validꢀ partꢀ numbers,ꢀ pleaseꢀ contactꢀ SynQorꢀ forꢀ
availability. See the Product Summary web page for more options.
PATENTS
SynQorꢀholdsꢀtheꢀfollowingꢀU.S.ꢀpatents,ꢀoneꢀorꢀmoreꢀofꢀwhichꢀapplyꢀtoꢀ
each product listed in this brochure. Additional patent applications may
beꢀpendingꢀorꢀfiledꢀinꢀtheꢀfuture.
5,999,417
6,731,520
7,072,190
6,222,742
6,894,468
7,085,146
6,545,890
6,896,526
7,119,524
6,577,109
6,927,987
7,269,034
6,594,159
7,050,309
7,272,021
Contact SynQor for further information:
Phone:ꢀ 978-849-0600
7,272,023
7,558,083
7,564,702
TollꢀFree:ꢀ 888-567-9596
Warranty
Fax:ꢀ
E-mail:ꢀ power@synqor.com
Web:ꢀ www.synqor.com
Address:ꢀ 155ꢀSwansonꢀRoad
978-849-0602
SynQor offers a three (3) year limited warranty. Complete warranty informa-
tion is listed on our website or is available upon request from SynQor.
InformationꢀfurnishedꢀbyꢀSynQorꢀisꢀbelievedꢀtoꢀbeꢀaccurateꢀandꢀreliable.ꢀ
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
fromꢀitsꢀuse.ꢀNoꢀlicenseꢀisꢀgrantedꢀbyꢀimplicationꢀorꢀotherwiseꢀunderꢀanyꢀ
patent or patent rights of SynQor.
ꢀ
ꢀ
ꢀ
ꢀ
Boxborough,ꢀMAꢀ01719
USA
Product # PQ60033EGx20
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005349 Rev. A
09/23/09
Page 13
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