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 efciency, 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 prole 1U package and
14.8W/cubic inch power density make them ideal for delivering reliable, efcient 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 Power Output Main Standby
Part Number Airow
Part Number -48 to -60Vdc Output Output
D1U54-D-450-12-HA3C M1920 5Vdc Front to Back
450W 12Vdc
D1U54-D-450-12-HA4C M1919 5Vdc Back to front
INPUT CHARACTERISTICS
FEATURES
Parameter Conditions Min Typ Max Units
450W output power
-44 -53 -72
DC Input Voltage Operating Range
93% efciency at 50% load
-40.5 -43 -43.5
Turn-on Input Voltage Ramp Up Vdc
12Vdc main output
-36.5 -38 -39.5
Turn-off Input Voltage Ramp Down
5Vdc standby output options
Input Current @ VIN = -53Vdc 450W 9.5 Adc
<1U height:
Cold start (25C) between 0 to
DC Input Inrush Peak Current 25 Apk
54.5mm x 228.6mm x 40mm
200ms
(2.15" x 9.0" x 1.57") 20% FL 89
Efciency (-54Vdc) 50% FL 93
Card Edge DC Output and Signal I/O Connector
%
100% FL 90
DC Input Terminal Block
Reversed input cables; no
14.8 Watts per cubic inch power density
Reverse polarity protection +40 +72 Vdc
internal/external fuse failure
N+1 redundancy capable, including hot plugging
Active (digital) current sharing on 12Vdc main
OUTPUT VOLTAGE CHARACTERISTICS
output; ORING FET are included for both standby
Nominal
and main outputs
Parameter Conditions Typ.
Output Min. Max. Units
Overvoltage, Overcurrent,
Voltage
Overtemperature protection
Output Set Point Accuracy 50% load; Tamb = 25C 11.96 12.00 12.04
Vdc
Internal cooling fan (variable speed)
Line & Load Regulation Combined regulation -2.0% +2.0%
Main 12Vdc
1,2
PMBus/I2C interface with status indicators
Ripple & Noise 20MHz Bandwidth 120 mV P-P
RoHS compliant
Output Current -40Vdc to -72Vdc DC input 0 37.5A A
Two Year Warranty
Load Capacitance 500 4000 F
Voltage Set Point 5.0
Line & Load Regulation 4.76 5.24 Vdc
1,2
5VSB Ripple Voltage & Noise 20MHz Bandwidth 120 mV P-P
Output Current 0 2 A
Load Capacitance 0 3000 F
1
Ripple and noise are measured at the output connector, with 0.1 F of ceramic capacitance and 10 F of tantalum capacitance on each
of the power supply outputs. A short coaxial cable to the measurement scope input, is used.
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%.
For full details go to
www.murata-ps.com/rohs
Certificate and
Test Report
www.murata-ps.com/support
D1U54-D-450-12-HXXC.A07.D01 Page 1 of 9
D1U54-D-450-12-HxxC Series
54mm 1U Front End DC-DC Power Supply Converter
OUTPUT CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
3 s
Startup Time AC ramp up
Main 12V, 50% load step, 1A/s di/dt
5 %
Transient Response
500 s
Standby output, 50% load step, 1A/s di/dt
Current sharing accuracy (Main 12Vdc output) >10% load; (* percentage of full load) 5* %
5 %
Hot Swap Transients
Holdup Time (Total Effective Hold Up - See Timing Waveforms) Full DC Input Source Range; 100% load 2 - ms
ENVIRONMENTAL CHARACTERISTICS
Min. Typ. Max.
Parameter Conditions Units
-40 70
Storage Temperature Range
C
-40 to -72Vdc, 450W -5 50
Operating Temperature Range
5 90
Operating Humidity Noncondensing; +45C
%
5 95
Storage Humidity
m
Altitude (without derating at 40C)
3000
Shock 30G non-operating
Sine sweep; 5-200Hz, 2G;
Operational Vibration
random vibration, 5-500Hz, 1.11G
hrs
MTBF (Target) Per Telcordia SR-332 Issue 3 M1C3 at 40C 620K
CAN/CSA C22.2 No 60950-1:2007 + A2:2014
UL 60950-1:2014
Safety Approval Standards (Planned; Pending Submission)
IEC60950-1:2005 +A2:2013
EN 60950-1:2006+A2:2013
CCC: GB4943.1-2011; GB/T9254-2008; GB17625.1-2012
Input Fuse Power Supply has internal 25A/250V fast blow fuse on the DC input negative line
Weight 1.51 lbs (0.684 kg)
TYPICAL AIRFLOW; PRESSURE VS. FLOW (PQ) CURVES
D1U54-D-450-12-Hx3C D1U54-D-450-12- Hx4C
P-Q Curve (Airflow B to F)
P-Q Curve (Airflow F to B)
11.0 13.0
12.0
10.0
11.0
9.0
10.0
8.0
9.0
7.0
8.0
6.0
7.0
6.0
5.0
5.0
4.0
4.0
3.0
3.0
2.0
2.0
1.0
1.0
0.0 0.0
0 100 200 300 400 500 600 700 800 -900 -800 -700 -600 -500 -400 -300 -200 -100 0
Back Pressure (Pa)
Back Pressure (Pa)
Notes:
1. The above curves represent provisional performance based upon a similar product using a 20mm thickness fan; these curves will be updated on later revisions of this datasheet.
2. Curves recorded at room ambient (circa 25C).
3. Curves generated with intermal fan running at 100% duty cycle while variying back pressure.
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D1U54-D-450-12-HXXC.A07.D01 Page 2 of 9
Airflow (CFM)
Airflow (CFM)