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D1U54-D-1200-12-Hx4PC Series
54mm 1U Front End DC-DC Power Converter
PRODUCT OVERVIEW
The D1U54-D-1200-12-Hx4PC series are highly efficient 1200 watt, DC input front end modules with a 12V main output
and a choice of 3.3V or 5V (20W) standby rails. The power module is able to current share with up to eight (8) other power
modules of the same type operating in parallel or N+1 redundancy. The supplies may be hot plugged, and include integral
isolation devices.
The power modules are fully protected from overload and overvoltage and are able to auto-recover from overtemperature
faults. A Status LED is provided on the front panel and additional control and status reporting is provided by hardware
logic signals and via a PMBus™ digital interface.
A low profile sub 1U height enclosure provides an excellent power density of >28W/in3 that is ideal for delivering reliable,
efficient power to servers; workstations; storage systems and other 12V distributed power systems, including direct
operation from intermediate bus converters.
FEATURES
ORDERING GUIDE

1200W output power (no derating across the
full DC input voltage range)

1.57"(1U) x 12.65" x 2.15"

92% efficiency
Part Number
D1U54-D-1200-12-HC4PC
D1U54-D-1200-12-HA4PC
D1U54-D-1200-12-HC3PC
D1U54-D-1200-12-HA3PC

12VDC Main output
INPUT CHARACTERISTICS

3.3VSB or 5VSB output (20W)
Parameter
DC Input Voltage Operating Range
Turn-on Input Voltage
Turn-off Input Voltage
Maximum Current @ VIN = -48Vdc

>28W/in power density

N+1 Redundancy Capable; hot plug/swap (up to
8 modules in parallel)

Active current sharing on 12V main output;
integral MOSFET ORING

Over-Voltage, Over-Current; Over-Temperature
Protection

Internal variable speed cooling fans
3
DC Input Inrush Peak Current
Efficiency (-48Vdc)
Reverse polarity protection

PMBus™ Power Management Bus

RoHS Compliant
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Power Output
Main Output
1200W
12V
Conditions
Ramp Up
Ramp Down
1200W
Cold start between 0 to
200ms
20% FL
50% FL
100% FL
Reversed input cables; no
internal/external fuse failure
Standby Output
3.3V
5V
3.3V
5V
Min
-40
-39.5
-35.5
Typ
-48/-60
-40
-36
-40
-72
Airflow
Back to Front
Front to Back
Max
-72
-40.5
-36.5
40
50
100
90
92
90
+40
Units
Vdc
Adc
Apk
%
+72
Vdc
Max.
Units
OUTPUT VOLTAGE CHARATERISTICS
Output Voltage Parameter
Voltage Set Point
Line & Load Regulation
Main
Ripple & Noise1
12V
Output Current
Load Capacitance
Voltage Set Point
Line & Load Regulation
3.3VSB
Ripple Voltage & Noise1
Output Current
Load Capacitance
Voltage Set Point
Line & Load Regulation
5VSB
Ripple Voltage & Noise1
Output Current
Load Capacitance
1
Conditions
Min.
Combined regulation
20MHz Bandwidth
-40Vdc to -72Vdc DC input
11.6
Combined regulation
20MHz Bandwidth
3.14
Typical
12
12.4
120
100A
30,000
0
3.3
3.46
120
6
10,000
0
5.0
4.76
20MHz Bandwidth
0
5.24
120
4
10,000
Vdc
mV P-P
A
μF
Vdc
mV P-P
A
μF
Vdc
mV P-P
A
μF
Ripple and noise are measurements are to be performed with a parallel combination of a 0.1μF ceramic capacitor
and 10μF tantalum capacitance on each of the power module output measurement nodes. A short coaxial cable from
measurement point to ’scope shall be used
Available now at
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For full details go to
www.murata-ps.com/rohs
CB
Test Certificate
and Test Report
PM
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D1U54-D-1200-12-Hx4PC.A01 Page 1 of 6
D1U54-D-1200-12-Hx4PC Series
54mm 1U Front End DC-DC Power Converter
OUTPUT CHARACTERISTICS
Parameter
Remote Sense (Main Output)
Output Rise (Monotonic)
Startup Time
Transient Response
Current Sharing Accuracy (between sharing
modules; up to 8 in parallel)
Hot Swap Transients
Hold Up Time1
Conditions
Overall compensation at full load; +VE & -VE connections
10% to 95% rise time
DC Ramp Up
PS_ON activation
12V, 50-100% or 100-50% step load; 1A/μs slew rate
3.3/5VSB 50-100% or 100-50% step load 1A/μs slew rate
Min.
Typ.
Max.
120
No positive voltage excursion
3
200
±600
±165/250
At 100% load
FL (Full Load); 48VDC nominal input prior to hold up
Units
mV
s
ms
mV
±10
%
5
%
ms
Max.
70
55
90
95
Units
1
ENVIRONMENTAL CHARACTERISTICS
Parameter
Storage Temperature Range
Operating Temperature Range
Operating Humidity
Storage Humidity
Altitude (no derating at 40°C)
Shock
Sinusoidal Vibration
MTBF
Safety Approvals (Standards) – Pending
Submission
Input Fusing
Weight
Conditions
Non-Condensing
1200W Output Power
Non-Condensing
Min.
-40
0
5
5
3000
Non-Operating
Operational, 0.5G; 5-500Hz
Telcordia SR-332 M1C1 @ 40°C
CSA/UL C22.2 No.60950-1-07, 2nd Ed.
IEC 60950-1:2005, (2nd Edition) with Am. 1:2009
EN 60950-1:2006 + A11:2009 + A1:2010
CE Marking per LVD DIRECTIVE 2006/95/EC
Internal 60A/170VDC fast blow fuse on the DC line input (TBC)
Typ.
30
452
°C
%
m
G
K Hours
3.15/1.43
Lbs/kg
Max.
70
14
Units
°C
V
115
135
A
3.6
6.5
5.4
4.5
4.0
8.5
6.0
5.5
V
A
V
A
Max.
Units
Vrms
Vdc
PROTECTION CHARACTERISTICS
Output Voltage
N/A
12V (Main)
3.3VSB
5VSB
Parameter
Over-Temperature
Over-Voltage
Over-Current
Over-Voltage
Over-Current
Over-Voltage
Over-Current
Conditions
Air inlet temperature; Auto re-start
Latching; toggle PS_ON or recycle DC input to reset
For slow overload events a constant current will be sustained for
1sec followed by a latch off that will auto reset in 5secs. For hard
(short circuit) events the output will shut down within 50ms and
auto restart within 200ms. This cycle will be repeated ten times at
which point the output will permanently latch off. The power module
will require to be reset by recycling the incoming DC source or
“toggling” PS_ON.
Latching; toggle PS_ON or recycle DC input to reset
Shutdown followed by auto-recovery
Latching; toggle PS_ON or recycle DC input to reset
Shutdown followed by auto-recovery
Min.
60
13
Conditions
Input to Output - Basic
Output to Chassis (Ground)
Min.
1000
500
Typ.
65
ISOLATION CHARACTERISTICS
Parameter
Insulation Safety Rating/Test Voltage
Isolation
Typ.
1
Assumes deployment within systems utilizing dual redundant “A” and “B” DC input feeds
STATUS INDICATORS
Conditions
No incoming DC supply present; power module completely off.
Standby Rail ON; Main Output OFF; DC input present & correct
Standby Rail ON; Main Output ON
Main Output overcurrent; undervoltage, overvoltage warning
FAN_FAULT; overtemperature; standby rail overcurrent, Main Output overcurrent or overvoltage
Power Module Warning Event
GREEN (Power) LED Status
LED not illuminated
Blinking
Solid Green
LED not illuminated
LED not illuminated
LED not illuminated
AMBER (Fault) LED Status
LED not illuminated
LED not illuminated
Solid Amber
Solid Amber
Blinking
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D1U54-D-1200-12-Hx4PC.A01 Page 2 of 6
D1U54-D-1200-12-Hx4PC Series
54mm 1U Front End DC-DC Power Converter
EMISSIONS AND IMMUNITY
Characteristic
Conducted Emissions
ESD Immunity
Radiated Field Immunity
Electrical Fast Transients/Burst Immunity
Surge Immunity
RF Conducted Immunity
Magnetic Field Immunity
Voltage Dips & Interruptions
Standard
FCC 47 CFR Part 15
CSIPR 22/EN55022
IEC/EN 61000-4-2;
IEC/EN 61000-4-3
IEC/EN 61000-4-4
IEC/EN 61000-4-5
IEC/EN 61000-4-6
IEC/EN 61000-4-8
NEBS GR-1089-CORE Issue
Compliance
Class A with 6dB margin
Level 4; Criteria A
Level 3; Criteria B
Level 3; Criteria A
Level 3; Criteria A
Level 3; Criteria A
3A/m; Criteria B
Relevant sections and compliance levels TBD
OUTPUT CONNECTOR AND SIGNAL INTERFACE
NB: With respect to signals columns 5, the italic “1” refers to the shortest level signal pin/power blade; the italic “2” is the “longest” signal pin.
The “shortest” pins are the “last to make, first to break” in the mating sequence.
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D1U54-D-1200-12-Hx4PC.A01 Page 3 of 6
D1U54-D-1200-12-Hx4PC Series
54mm 1U Front End DC-DC Power Converter
PIN ASSIGNMENTS: D1U54-D-1200-12-HxxPC
ALTERNATIVE PIN ASSIGNMENTS: D1U54-D-1200-12-HxxC
TE Connectivity 1926734-2 (Power Supply)
Pin
Function
Description
TE Connectivity 1926734-4 (Power Supply)
Pin
Function
Description
6, 7, 8, 9, 10
1, 2, 3, 4, 5
V1 (+12VOUT)
+12V Main Output
6, 7, 8, 9, 10
+12V RTN/PGND +12V Main Output Return
1, 2, 3, 4, 5
V1 (+12VOUT)
+12V Main Output
+12V RTN/PGND +12V Main Output Return
A1
+VSB
Standby Output
A1
+VSB
Standby Output
B1
+VSB
Standby Output
B1
+VSB
Standby Output
C1
+VSB
Standby Output
C1
+VSB
Standby Output
D1
+VSB
Standby Output
D1
+VSB
Standby Output
E1
+VSB
Standby Output
E1
+VSB
A2
+VSB_Return
Standby Output Return
A2
+VSB_Return
Standby Output
Standby Output Return
B2
+VSB_Return
Standby Output Return
B2
+VSB_Return
Standby Output Return
C2
Unused
No End User Connection
C2
Unused
No End User Connection
D2
Unused
No End User Connection
D2
Unused
No End User Connection
E2
Unused
E2
Unused
No End User Connection
A3
APS
A3
PS_KILL
Power Supply “kill”; short pin
B3
Unused
No End User Connection
I2C Address Protocol Selection
(Select by appropriate pull down resistor
No End User Connection
B3
Unused
No End User Connection
C3
SDA
I2C Serial Data Line
C3
SDA
D3
V1_SENSE_R
Remote Sense Return (-VE)
D3
V1_SENSE_R
E3
V1_SENSE
Remote Sense (+VE)
E3
V1_SENSE
Remote Sense (+VE)
A4
SCL
I2C Serial Clock Line
A4
SCL
I2C Serial Clock Line
B4
PS_ON_L
C4
SMB_ALERT
D4
I2C Serial Data Line
Remote Sense Return (-VE)
Remote On/Off (Enable/Disable)
B4
PS_ON_L
Alert signal to host system
C4
SMB_ALERT
Unused
No End User Connection
D4
ISHARE
Current Share bus; short pin
E4
DC_OK
DC Input Source Present & “OK”
E4
DC_OK
DC Input Source Present & “OK”
A5
PS_KILL
Power Supply “kill”; short pin
A5
A0
B5
ISHARE
Current Share bus; short pin
B5
Unused
No End User Connection
Power “OK”; short pin
C5
PW_OK
Power “OK”; short pin
C5
PW_OK
D5
Unused
No End User Connection
D5
A1
E5
PRESENT_L
E5
PRESENT_L
Power Module Present; short pin
Remote On/Off (Enable/Disable)
Alert signal to host system
I2C LSB Address Line
I2C Address Line
Power Module Present; short pin
Consult Murata Sales for availability of alternative “HxxC” model variants.
MATING CONNECTOR (OUTPUT & SIGNALS)
Supplier
Press Fit, Straight
---
TE Connectivity (Tyco)
Press Fit, Right Angle
---
Solder Straight
---
Solder Right Angle
2-1926739-5
2-1926733-5 (Legacy Now Obsolete)
DC INPUT TERMINAL BLOCK
Dinkle Enterprise
2 Way Terminal Block; 40A rating; +VE & -VE DC Input cable connections
DT-7C-B14W-02
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D1U54-D-1200-12-Hx4PC.A01 Page 4 of 6
D1U54-D-1200-12-Hx4PC Series
54mm 1U Front End DC-DC Power Converter
WIRING DIAGRAM FOR OUTPUT
Dotted lines show optional remote sense connections.
Optional remote sense lines can be attached to a load that is a distance
away from the power supply to improve regulation at the load.
V1_SENSE (Main Output Remote Sense)
V1_SENSE (Main Output Remote Sense)
+12V main output
E3
+12V main output
6-10
E3
6-10
12V load
D1U54P
1-5
+12V main output return
D1U54P
+12V main output return 1-5
V1_SENSE_R
V1_SENSE_R D3
D3
ISHARE
ISHARE
B5 (or D4)
A1,B1,C1,D1,E1
B4
A2,B2
A5 (or A3)
VSB A1,B1,C1,D1,E1
VSB
PS_ON
VSB_return
PS_KILL
B5 (or D4)
PS_ON
B4
VSB load
FET, BJT, wire
or switch (debounced )
to turn on +12V main output
VSB_return A2,B2
PS_KILL A5 (or A3)
CURRENT SHARING NOTES
1. Main 12VDC Output: Analogue active share bus. The ISHARE bus (Pin B5 or D4) must be connected on all sharing modules. It is not required that the SENSE signals are connected to the remote load for current share to operate correctly.
2. Up to eight (8) power modules can be connected in parallel (non-redundant) or N+1 configuration. The current share bus is analogue bi-directional (can source or sink current
from the ISHARE bus).
The voltage of the bus would measure 8VDC for a single power module at 100% load; for two (2) modules sharing a common load the ISHARE bus voltage would be 4V for a
perfect 50/50 current share scenario.
3. The VSB (Standby Output) output of the power module can also be connected in parallel; internal output isolation devices are provided however the combined available power is
limited to that available from a single power module (3.3V or 5V; 20W) irrespective of the number of modules connected in parallel.
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D1U54-D-1200-12-Hx4PC.A01 Page 5 of 6
D1U54-D-1200-12-Hx4PC Series
54mm 1U Front End DC-DC Power Converter
MECHANICAL DIMENSIONS
Notes
1. Dimensions: 1.57" x 12.66" x 2.15" (40.0 x 321.5mm x 54.5mm)
2. Safety earth/ground connection via separate dedicated M4 pan head screw connection (located above terminal block)
OPTIONAL ACCESSORIES
Description
Part Number
D1U54-12 Output Interface Connector Card
D1U54P-12-CONC
APPLICATION NOTES
Document Number
Description
Link
ACAN-44
D1U54P-12-CONC Output Interface Connector Card
www.murata-ps.com/data/apnotes/acan-44.pdf
ACAN-58
D1U54-D-12 Communications Protocol
Murata Power Solutions, Inc.
11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A.
ISO 9001 and 14001 REGISTERED
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. 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.
© 2015 Murata Power Solutions, Inc.
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D1U54-D-1200-12-Hx4PC.A01 Page 6 of 6