D1U54-D-450-12-HxxC Series
54mm 1U Front End DC-DC
Power Supply Converter
PRODUCT OVERVIEW
The D1U54-D-450-12-HxxC series power modules are very high efficiency, 450 watt DC input front end supplies, with a
12Vdc main output and a standby output. An active (digital) current share characteristic is provided to allow units to
operate in parallel and share load current. The power supply may be hot plugged; recovers from overtemperature faults,
and has status LEDs on the front panel in addition to hardware signal logic and PMBus™ status signals. The low profile
1U package and 14.8W/cubic inch power density make them ideal for delivering reliable, efficient power to networking
equipment, workstations, storage systems and other 12Vdc distributed power architectures.
These models are intended to complement the appropriate D1U54P-W-450-12-HxxC AC input variant.
ORDERING GUIDE
Murata Internal
Part Number
M1920
Power Output
-40 to -72Vdc
Main
Output
Standby
Output
5Vdc
Part Number
Airflow
D1U54-D-450-12-HA3C
D1U54-D-450-12-HA4C
Front to Back
Back to front
450W
12Vdc
M1919
5Vdc
INPUT CHARACTERISTICS
Parameter
DC Input Voltage Operating Range
Turn-on Input Voltage
Turn-off Input Voltage
Input Current @ VIN = -53Vdc
FEATURES
Conditions
Min
-44
-40.5
-36.5
Typ
-53
-43
-38
9.5
Max
-72
-43.5
-39.5
Units
Vdc
450W output power
93% efficiency at 50% load
12Vdc main output
5Vdc standby output options
Ramp Up
Ramp Down
450W
Cold start (25°C) between 0 to
200ms
20% FL
50% FL
100% FL
Reversed input cables; no
internal/external fuse failure
Adc
Apk
<1U height:
DC Input Inrush Peak Current
25
54.5mm x 228.6mm x 40mm
(2.15" x 9.0" x 1.57")
89
93
90
Efficiency (-54Vdc)
Card Edge DC Output and Signal I/O Connector
DC Input Terminal Block
14.8 Watts per cubic inch power density
N+1 redundancy capable, including hot plugging
Active (digital) current sharing on 12Vdc main
output; ORING FET are included for both standby
and main outputs
%
Reverse polarity protection
Vdc
+40
Min.
+72
OUTPUT VOLTAGE CHARACTERISTICS
Nominal
Parameter
Conditions
Typ.
Output
Max.
Units
Vdc
Overvoltage, Overcurrent,
Voltage
Overtemperature protection
Output Set Point Accuracy 50% load; Tamb = 25C
11.96
-2.0%
12.00 12.04
+2.0%
120
37.5A
4000
5.0
Internal cooling fan (variable speed)
PMBus™/I2C interface with status indicators
RoHS compliant
Line & Load Regulation
Combined regulation
20MHz Bandwidth
-40Vdc to -72Vdc DC input
Main 12Vdc
Ripple & Noise1,2
mV P-P
A
μF
Output Current
Load Capacitance
Voltage Set Point
0
500
Two Year Warranty
Vdc
mV P-P
A
Line & Load Regulation
Ripple Voltage & Noise1,2
Output Current
4.76
5.24
120
2
5VSB
20MHz Bandwidth
0
0
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www.murata-ps.com en 3d acdc.htm
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www.murata-ps.com en 3d acdc.htm
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Load Capacitance
3000
μF
1 Ripple and noise are measured at the output connector, with 0.1 μF of ceramic capacitance and 10 μF of tantalum capacitance on
each of the power supply outputs. A short coaxial cable to the measurement ‘scope input, is used.
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2 Measurements assume the use of the minimum load capacitance as specified for the main 12Vdc output and a minimum load of 5%.
Below 5% loading the overall voltage deviation shall be within 2.5%.
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Available now at:
www.murata-ps.com/en/3d/acdc.html
Certificate and
Test Report
www.murata-ps.com/support
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