QHS12-120-NHBRC [MURATA]
DC-DC Regulated Power Supply Module;型号: | QHS12-120-NHBRC |
厂家: | muRata |
描述: | DC-DC Regulated Power Supply Module |
文件: | 总12页 (文件大小:643K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
Q-Class Converters
QHS12-120 Model
Features:
OBSOLETE PRODUCT
9
9
Thermal and overload protection
Microprocessor controlled supervisory functions
9 Out-gassing feature ensures reliable pin soldering
9 RoHS Compliant
Table 1
Input Characteristics
Notes & Conditions (1)
Min
Typ.
Max
75
100
35
Units
Input Voltage Operating Range
Input Voltage Transient Protection
Input Undervoltage Lockout
36
48
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
A
Turn-on Threshold
32
31
Turn-off Threshold
Hysteresis Voltage
Turn-on Threshold
Turn-off Threshold
Hysteresis Voltage
Steady-State
34
1
Input Overvoltage Lockout
76
75
80
79
1
3.3
150
Input Current
No-Load Input Current
Enabled state
mA
Disabled Input Current
Disabled state
mA
Input Reflected Ripple Current (2)
Inrush Current Transient
Enable Characteristics
25
0.1
mA p-p
A2s
Vdc
kOhms
Vdc
Internal pull-up voltage, ref. to Vi(-)
Input Impedance, internal pull-up
On State range
5
100
Enable – Negative Logic Version
Enable – Positive Logic Version
-0.1
-0.1
0.8
0.8
Off State range
Vdc
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QHS12-6201001509_D01_21/04/08
Q-Class Converters
Murata Power Solutions
QHS12-120 Model
Table 2
Output Characteristics
Notes & Conditions (1)
Min
11.88
Typ.
12
Max
12.12
0.2
0.2
12.1
9
Units
Output Voltage Set Point
Output Line Regulation
Output Load Regulation
Trim feature not used
Vdc
%
%
Output Voltage Total Regulation
11.8
1
Vdc
Output Ripple Voltage & Noise (3)
Output Current Operating Range
Efficiency
20 MHz Bandwidth
50
100
12
mV p-p
A
%
ms
0
100% Load
Vin present: Enable to 90% Vout
Enabled: Vin applied to 90% Vout
93
13
15
Turn-On Time
Start-up Inhibit Time
ms
Transient Response (4)
200
300
+10
mV
μs
%
25% step, 0.1A/μs, ΔVo
Recovery Time
Of Output Voltage Set Point, typ.
Remote Sense Compensation Range
(5), (6)
Output Voltage Trim Range (6)
Maximium Output Capacitance
Of Output Voltage Set Point, typ.
-20
+10
%
μF
3,900
Table 3
Protection Characteristics
Notes & Conditions (1)
Non-Latching
Re-start rate
Min
Typ.
14
3
Max
Units
Output Over-Current Shutdown
A
s
Over Voltage Shutdown
Over Temperature Shutdown (7)
Latching
Non-Latching
14
15.2
Vdc
°C
125
Table 4
General Specifications
Isolation Voltage
Notes & Conditions (1)
Input to Output
Min
1500
10
Typ.
Max
Units
Vdc
Mohm
pF
Isolation Resistance
Input to Output
Isolation Capacitance
Storage Temperature Range
Thermal Measurement Location
(TML) Temperature (9)
Operating Temperature Range
Semiconductor Junction Tempature
Material Flammability
MTBF
6800
Non-condensing
See mechanical drawing for location
-40
-40
125
°C
Measured at TML
Package Rating
UL 94V-0
Calculated (Bellcore TR-332)
Demonstrated
120
150
°C
°C
1.2
tbd
106 Hrs
106 Hrs
kHz
Switching Frequency
Dimension (LxWxH)
350
2.28”L x 1.45” W x 0.47”H
(57.91 x 36.83 x 11.8 mm)
Weight
grams
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QHS12-6201001509_D01_21/04/08
Q-Class Converters
Murata Power Solutions
QHS12-120 Model
Table 5
Standards Compliance
Notes & Conditions (8)
UL/CSA 60950
TUV
c-UL-us recognized (basic Insulation), UL File# E165113
(Bauart) certified
Notes:
(1) Vin = 48Vdc, Ta = 25 °C, Airflow = 200 LFM unless otherwise noted.
(2) Input Reflected Ripple Current is specified when measured with the filter shown in Figure 7.
(3) Output Ripple Voltage and noise is specified when measured with a 10uF tantalum and a 1uF ceramic capacitor at the converter
output pins.
(4) Transient response is specified without a capacitor at the output of the converter.
(5) If remote sense is not required or used, the Sense(+) and Sense(-) pins must be connected to Vo(+) and Vo(-) respectively.
(6) See ‘Remote Sense’ and ‘Trim Feature’ details regarding output voltage range limitations.
(7) Thermal shutdown is monitored at the ‘Thermal Measurement Location” (TML). See ‘Mechanical Information’ on page 4 for the
thermal measurement location.
(8) See ‘Safety Considerations’.
(9) De-rating curves are conducted in a controlled environment. End application testing is required to ensure the Thermal Measurement
Location temperature is below the maximum specified.
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QHS12-6201001509_D01_21/04/08
Q-Class Converters
Murata Power Solutions
QHS12-120 Model
Mechanical Information
Figure 1
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QHS12-6201001509_D01_21/04/08
Q-Class Converters
Murata Power Solutions
QHS12-120 Model
Pin Assignment
Table 6
Pin #
Pin Name
Vi(+)
Function
Notes & Conditions
1
2
Positive Input Voltage
Input Enable / Disable
En
Referenced to Vo(-).
No external source required.
Positive Logic: Floating = Enabled
Negative Logic: Floating = Disabled
3
4
5
6
7
8
Vi(-)
Vo(-)
Sense(-)
Trim
Sense(+)
Vo(+)
Negative Input Voltage
Negative Output Voltage
Negative Remote Sense
Output Voltage Trim
Positive Remote Sense
Positive Output Voltage
Must be connected to Vo(-)
See ‘Trim Feature’ below
Must be connected to Vo(+)
Remote Sense
The remote sense regulates the output voltage across the sensing connections, and should be connected at the point on the board where
regulation is desired. It is used to compensate for contact and distribution losses to the load. Efforts should be made to minimize these
losses to help reduce noise and improve efficiency of the system.
Rdistribution
Rcontact
Vo(+)
Sense(+)
Trim
Rtrim_up
or
Rtrim_down
Cload
Iload
Sense(-)
Vo(-)
Rdistribution
Rcontact
Figure 2
The voltage between remote sense pins and the output terminals must not exceed the output voltage sense range as specified in Table 2.
[Vo(+) – Vo(-)] - [Sense(+) – Sense(-)]
≤
Sense Range % x set point
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QHS12-6201001509_D01_21/04/08
Q-Class Converters
Murata Power Solutions
QHS12-120 Model
Trim-up Feature
Trim-down Feature
The Trim-up configuration is used to increase the level of the
nominal output voltage.
The Trim-down configuration is used to reduce the level of the
nominal output voltage.
This is achieved by connecting a resistor between Trim and
Sense(+) pins:
Trim-down is achieved by connecting a resistor between Trim
and Sense(-) pins:
Vo(+)
Vo(+)
Sense(+)
Sense(+)
Cload
Rtrim_up
Trim
Trim
Rtrim_down
Sense(-)
Cload
Iload
Iload
Sense(-)
Vo(-)
Vo(-)
Figure 3
Figure 4
The value of the trim-up resistor is determined by the following
equation:
The value of the trim-down resistor is determined by the
following equation:
QHS12-120 Trim-up and Trim-down Resistance
10000
The voltage between the Vo(+) and Vo(-) terminals must not
exceed the minimum output over voltage shut-down value
indicated in
Rup
Table 3. This limit includes any increase in voltage due to
remote-sense compensation and output voltage set-point
adjustment (trim).
Rdow n
1000
100
10
The amount of power delivered by the module is defined as the
voltage at the output terminals multiplied by the output current.
(Output Voltage Set Point, typ x Output Current, Max) When
using remote sense and/or trim, the output voltage of the module
can be increased, and may result in an increase of output
power. Care should be taken to ensure that the maximum output
power of the module remains at or below the maximum rated
power.
0
2
4
6
8
10
Delta (%)
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QHS12-6201001509_D01_21/04/08
Q-Class Converters
Murata Power Solutions
QHS12-120 Model
Efficiency Curves
Efficiency at 25 Degrees C
Figure 6 QHS12-120 Efficiency
Test Setup
Input Reflected Ripple
Input Reflected Ripple Test Circuit
i
i
s
c
Vi(+)
Vin
12uH
DC-DC
Converter
220uF,
ESR<0.1 ohms
@ 100kHz
33uF,
ESR<0.7 ohms
@ 100kHz
Vi(-)
RTN
Figure 8 Input Current at full load, 48Vdc input.
5 mA/div, 500 uS /div.
Figure 7 Test circuit used for input ripple current
measurement
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QHS12-6201001509_D01_21/04/08
Q-Class Converters
Murata Power Solutions
QHS12-120 Model
Output Ripple/Noise
Figure 9 Output ripple: Vin=48 Vdc, Iout=12 Amps.
Vert: 50 mV/div. Horiz: 2 uS/div
Load Transient +ve Step
Load Transient –ve Step
Figure 11 Top Trace: Load Current, 25% step,
5 A/div. Bottom Trace: Vout, 50 mV/div.
Horiz: 200 uS/div.
Figure 10 Top Trace: Load Current, 25% step,
5 A/div. Bottom Trace: Vout, 50 mV/div.
Horiz: 200 uS/div.
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QHS12-6201001509_D01_21/04/08
Q-Class Converters
Murata Power Solutions
QHS12-120 Model
Thermal Derating (Parallel) TTML=110C
Thermal Derating (Transverse) TTML=110C
15
15
12
9
12
9
0 LFM
0 LFM
6
6
100 LFM
200 LFM
300 LFM
400 LFM
Poly. (100 LFM)
100 LFM
200 LFM
300 LFM
400 LFM
Poly. (100 LFM)
3
3
0
0
25
35
45
55
65
75
85
25
35
45
55
65
75
85
Ambient Temperature [ºC]
Ambient Temperature [ºC]
Figure 12
Figure 13
Thermal Derating (Parallel) TTML=120C
Thermal Derating (Transverse) TTML=120C
15
15
12
9
12
9
0 LFM
0 LFM
6
6
100 LFM
200 LFM
300 LFM
400 LFM
Poly. (100 LFM)
100 LFM
200 LFM
300 LFM
400 LFM
Poly. (100 LFM)
3
3
0
0
25
35
45
55
65
75
85
25
35
45
55
65
75
85
Ambient Temperature [ºC]
Ambient Temperature [ºC]
Figure 14
Figure 15
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QHS12-6201001509_D01_21/04/08
Q-Class Converters
Murata Power Solutions
QHS12-120 Model
Thermal Image, 300 LFM, Output to Input
71.4°C
70
E:61.6
60
50
40
D: 71.3
C: 71.7
F: 65.6
B: 64.6
A: 61.8
H: 64.2
G: 62.8
30
25.4°C
Figure 20 Parallel Airflow at 300 LFM, from output to input (right to left).
Ambient Temperature 25 °C. Vin = 48 V, and load current of 12 amps.
Turn-on (Vout vs Vin)
Turn-on (Enable)
Figure 17 Vin: 48 Vdc, load = 12 Adc plus 3,900 uf,
top trace (2): Vout, bottom trace (1): Enable Signal,
transition from disable to enable.
Figure 16 Converter pre-enabled, load = 12 Adc
plus 3,900 uf, top trace(2): Vout, bottom trace (1):
Vin from 0 to 48 Vdc.
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QHS12-6201001509_D01_21/04/08
Q-Class Converters
Murata Power Solutions
QHS12-120 Model
EMI Signature
Figure 19 Quasi-Peak Measurement of positive input at 48Vdc and full load, with EMI filter as shown in Fig. 27.
External EMI Test Filter
100 uF
100v
10 nF
1
1
2
2
4
+48v
RTN
1 uF
UUT
3
4
Pulse
P0351
3
10 nF
1 uF
1.470 mH
Figure 20 EMI Filter as used for EMI measurement of Fig. 26
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QHS12-6201001509_D01_21/04/08
Q-Class Converters
QHS12-120 Model
Safety Considerations
This Product is certified to the standards listed in the ‘Standards Compliance’ section in the table above. If this product is built into
information technology equipment, the installation must comply with the above standard.
An external input fuse of 30 A maximum must be used to meet the above requirements.
The output of the converter [Vo(+)/Vo(-)] is considered to remain within SELV limits when the input to the converter meets SELV or TNV-
2 requirements.
The converters and materials meet UL 94V-0 flammability ratings.
Part Number Designations
RoHS Compliant
The QHS12-120 series of converters is in compliance with the European Union Directive 2002/95/EC (RoHS) with respect to the following
sustances: lead (Pb), mercury (Hg), cadmium (Cd), hexavalent chromium, polybrominated biphenyls (PBB) or polybrominated diphenyl ethers
(PBDE).
This product is subject to the following operating requirements
and the Life and Safety Critical Application Sales Policy:
Refer to: http://www.murata-ps.com/requirements/
Murata Power Solutions, Inc.
11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A.
ISO 9001 and 14001 REGISTERED
Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other
technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply
the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without
notice.
© 2012 Murata Power Solutions, Inc.
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