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D1U2-D-400-12-HA4C
www.murata-ps.com
54mm 1U Front End DC-DC Power Supply Converter
PRODUCT OVERVIEW
The D1U2-D-400-12-HA4C is a 400 watt, DC input, isolated front end power supply with a 12V main output and a 5V
(15W) standby. It features active current sharing for 2 supplies operated in parallel. The supply may be hot plugged, it
recovers from overtemperature faults, and has status LEDs on the front panel in addition to logic and PSMI status signals.
The supply comes in a low profile 1U package and has >8W/cubic inch power density, making it ideal for delivering
reliable, efficient power to servers, workstations, storage systems and other 12V distributed power systems.
ORDERING GUIDE
Part Number
FEATURES
„ 400W output power
Power Output
High Line AC
Power Output
Low Line AC
Main
Output
Standby
Output
Airflow
400W
400W
12
5V
Back to front
D1U2-D-400-12-HA4C
„ 12V main output
INPUT CHARACTERISTICS
„ 5V standby output of 15W
Parameter
Voltage Operating Range
Turn-on Input Voltage
Turn-off Input Voltage
Maximum current at Vin=-40Vdc
DC Inrush Current
„ 1U height: 2.15"x13.67"x1.58"
„ 8.6 Watts per cubic inch density
„ Efficiency 83% at full load, 48Vdc and 50°C
„ N+1 redundancy capable,
including hot plugging (2 in parallel)
„ Active current sharing on 12V main output,
ORing FET
„ Overvoltage, overcurrent,
overtemperature protection
„ Internal cooling fan (variable speed)
Efficiency (-40Vdc to -72Vdc) including fan load
Conditions
Min.
-40
-43
-38.5
Ramp up
Ramp down
400W
Cold start between 0 to 200msec
35% load
50% load
100% load
Nom.
-48
-43.5
-39
Max.
-72
-44
-39.5
15
30
80
80
83
Units
Vdc
A
Apk
%
OUTPUT VOLTAGE CHARACTERISTICS
Output
Voltage
„ PSMI and SMbus / I2C interface with bicolor
LED status indicators
„ RoHS compliant
12V
5VSB
1
Parameter
Conditions
Voltage Set Point
Line and Load Regulation
Ripple Voltage & Noise1
Output Current
Load Capacitance
Voltage Set Point
Line and Load Regulation
Ripple Voltage & Noise1
Output Current
Load Capacitance
Min.
Typ.
Max.
12.0
11.8
20MHz Bandwidth
0
0
20MHz Bandwidth
0
0
Vdc
12.2
120
33.3
15,000
mV p-p
A
μF
5.15
50
3
500
mV p-p
A
μF
5.0
4.85
Units
Vdc
Ripple and noise are measured with 0.1 μF of ceramic capacitance and 10 μF of tantalum capacitance on each of the
power supply outputs. A short coaxial cable with 50Ω scope termination is used.
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Available now at
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CB
Test Certificate
and Test Report
For full details go to
www.murata-ps.com/rohs
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CPS_D1U2-D-400-12-HA4C.A04 Page 1 of 6
D1U2-D-400-12-HA4C
54mm 1U Front End DC-DC Power Supply Converter
OUTPUT CHARACTERISTICS
Parameter
Output Rise Monotonicity
Startup Time
Transient Response
Conditions
No voltage excursion
DC ramp up
12V, 30-70% load step, 1A/μs di/dt
5VSB, 30-70% load step, 0.1A/μs di/dt
Current sharing accuracy (up to 2 in parallel)
At 100% load
Hot Swap Transients
Holdup Time
All outputs within regulation
Min.
Typ.
Max.
Units
1.5
2.0
3
3
s
%
±10
8
ms
ENVIRONMENTAL CHARACTERISTICS
Parameter
Storage Temperature Range
Operating Temperature Range
Operating Humidity
Storage Humidity
Altitude (without derating at 55°C)
Shock
Operational Vibration
MTBF
Safety Approvals
Input Fuse
Switching Frequency
Weight
Conditions
Min.
-40
0
10
5
Noncondensing
Typ.
Max.
70
50
90
95
3,000
30G non operating
0.5G, 5 – 500 Hz
Per Telcordia SR332M1C1 @25°C
300K
CSA/UL 60950-1-07-2nd Ed.
IEC 60950-1:2005 (2nd Edition)
EN 60950-1:2006 +A11
CE Marking per LV DIRECTIVE 2006/95/EC
Power Supply has internal 20A/125V fast blow fuses on both DC lines
200KHz for Main Output Converter
2.01lbs (0.912kg)
Units
°C
%
m
hrs
PROTECTION CHARACTERISTICS
Output
Voltage
12V
5VSB
Parameter
Conditions
Min.
Typ.
Max.
Units
Overtemperature (intake)
Overvoltage
Overcurrent
Overvoltage
Overcurrent
Autorestart
Latching
Hiccup
Latching
Autorecovery
65
14.0
115
5.7
4.4
70
75
14.5
130
5.9
6.0
°C
V
%
V
A
Conditions
Input to Output - Basic
Input to Chassis - Basic
Output to Chassis
Min.
1500
1000
500
Typ.
Max.
Units
Vdc
Vdc
Vdc
ISOLATION CHARACTERISTICS
Parameter
Insulation Safety Rating / Test Voltage
Isolation
CONTROL SIGNALS
Condition
LED Status
Standby - ON; Main output - OFF; DC PRESENT
Standby - ON; Main output - ON
Main/standby output overcurrent, undervoltage, overvoltage warning
FAN_FAULT; overtemperature; stand-by overcurrent, undervoltage
Blinking green
Solid green
Blinking yellow
Yellow
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CPS_D1U2-D-400-12-HA4C.A04 Page 2 of 6
D1U2-D-400-12-HA4C
54mm 1U Front End DC-DC Power Supply Converter
EMISSIONS AND IMMUNITY
Characteristic
Standard
Compliance
Conducted Emissions
ESD Immunity
Radiated Field Immunity
Electrical Fast Transients/Burst Immunity
Surge Immunity
Radiate Field Conducted Immunity
Magnetic Field Immunity
FCC 47 CFR Part 15/CISPR 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
Class B
Level 3 criteria A
Level 3 criteria B
Level 3 criteria B
Level 2 criteria A
Level 3 criteria A
3 A/m criteria B
DC OUTPUT CONNECTOR AND SIGNALS
The DC Output Connector is a TYCO MINIPAK HDL Connector TYCO P/N: 1926734-1. Mating pin sequencing shall be 12V_RTN first, 12V second, signals third and PSKILL_L signal
last. PSKILL_L is the last to mate and first to break and is used as a power supply output enable for the 12V rail.
Mating Part: TYCO PN 1-1926739-8
Power Supply Output Connector Isometric and Front Views
Front Connector View Looking at Blades and Pins (view looking in at rear of power supply)
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CPS_D1U2-D-400-12-HA4C.A04 Page 3 of 6
D1U2-D-400-12-HA4C
54mm 1U Front End DC-DC Power Supply Converter
DC OUTPUT CONNECTOR AND SIGNALS (continued)
View into mating face of 25S8P MINIPAK HDL Plug
Row:
Column:
1
2
3
4
5
1
2
3
4
5
6
7
8
e
d
c
b
a
Signal contacts: choice of Level 1 (L1) or Level 2 (L2)
Power contacts: choice of Level 2 (L2) or Level 3 (L3)
POWER SUPPLY OUTPUT CONNECTOR POWER BLADE AND SIGNAL PIN ALLOCATION
Power Blade Number
Signal
Function
P1, P2, P3, P4
P5, P6, P7, P8
A1
A2
A3
A4, A5
B1
B2, B3
B4, B5
C1
C2, C3, C4, C5
D1
D2
D3
D4
D5
E1
E2
E3
E4
E5
RTN
12V
SMB_ALERT_L
PSON_L
PSKILL_L
5VSB
SMB_SCL
RTN
5VSB
SMB_SDA
RTN
SMB_A1
RTN
12LS
12V_RS12V_RS+
SMB_A0
RTN
PWOK_H
FF1_H
RTN
12V Return
12V Output
I2C Serial Bus Interrupt
Power Supply ON
Power Supply Enable
5V Standby Voltage
I2C Serial Bus Clock
Ground
5V Standby Voltage
I2C Serial Bus Data / Address
Ground
I2C Serial Bus Address Bit A1
Ground
12V Current Share Line
12V Remote Sense Negative
12V Remote Sense Positive
I2C Serial Bus Address Bit A0
Ground
Power OK Status Bit
Fan Fail #1 Status Output
Ground
Signal Direction
Blade Sequencing
Output
Output
Output
Input
Input
Output
Bi-directional
Level 3 UPM PWR
Level 2 UPM PWR
Level 2 Signal
Level 1 Signal
Level 2 Signal
Level 2 Signal
Output
Bi-directional
Output
Input
Output
Bi-directional
Level 2 Signal
Level 2 Signal
Input
Input
Output
Level 2 Signal
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CPS_D1U2-D-400-12-HA4C.A04 Page 4 of 6
D1U2-D-400-12-HA4C
54mm 1U Front End DC-DC Power Supply Converter
WIRING DIAGRAM
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.
+Remote Sense
D5
+Remote Sense
+DC out
+DC out
P5-P8
P5-P8
D5
12V load
D1U2
P1-P4
D4
D3
A4, A5, B4, B5
A2
DC out return
-Remote Sense
-Remote Sense
12LS
12LS
5VSB
5VSB
PSON_L
PSON_L
Close switch (or FET, BJT, or wire)
to turn on +DC out
B2, B3, C2-C5, D2, E2, E5
A3
D1U2
DC out return
RTN
P1-P4
D4
D3
A4, A5, B4, B5
A2
+5V logic circuitry
RTN
B2, B3, C2-C5, D2, E2, E5
PSKILL_L
PSKILL_L
A3
CURRENT SHARING NOTES
12V Output: Current sharing is achieved using the active current share method. (See wiring diagram section for connection details.) The total combined load must be below 400W
at startup. Startup of parallel power supplies is not internally synchronized. It is recommended that the paralleled power supplies be turned on at the same time (with their PSON_L
signals). Current sharing can be achieved with or without remote sense connected to the common load.
5VSB Output: 5VSB outputs can be tied together for redundancy but total combined output power must not exceed 15W. The 5VSB output has internal ORing MOSFET for additional
redundancy / internal short protection.
Up to 2 units can be paralleled together. Outputs of AC input units (D1U2-W-400) and DC input units (D1U2-D-400) can be paralleled together. Please consult your Murata sales
representative if operation with more than two units in parallel is needed.
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CPS_D1U2-D-400-12-HA4C.A04 Page 5 of 6
D1U2-D-400-12-HA4C
54mm 1U Front End DC-DC Power Supply Converter
MECHANICAL DIMENSIONS
[1]
347.20 ±0.50
13.669 ±0.020
[1]
54.50 ±0.50
2.146 ±0.020
33.00
1.299
REF
[1]
340.40 ±0.50
13.402 ±0.020
380.20
14.969
REF
[1]
66.55 ±0.50
2.620 ±0.020
MATTING SURFACE
OF SIGNAL PINS FIELD
MATTING SURFACE
OF SIGNAL PINS FIELD
8.15 ±0.35
0.321 ±0.014
38.54
1.517
REF
9.41 ±0.35
0.370 ±0.014
[1]
40.20 ±0.50
1.583 ±0.020
[1]
26.16 ±1.00
1.030 ±0.039
[1]
39.00 ±0.50
1.535 ±0.020
Airflow Back to Front
DC input connector: Phoenix 1804807
Mating Part: Phoenix PN 1848902 or 1804917
Dimensions: 2.15" x 13.67" x 1.58" [54.5mm x 347.2mm x 40.2mm]
OPTIONAL ACCESSORIES
Description
Part Number
12V D1U2 Output Connector Card
D1U2-12-CONC
APPLICATION NOTES
Document Number
Description
TBD
D1U2 Output Connector Card
TBD
D1U2 Communication 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.
© 2013 Murata Power Solutions, Inc.
www.murata-ps.com/support
CPS_D1U2-D-400-12-HA4C.A04 Page 6 of 6
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