D1U2-D-400-12-HA4C Datasheet, PDF (5/6 Pages) Murata Power Solutions Inc. – 54mm 1U Front End DC-DC Power Supply Converter

WIRING DIAGRAM
D1U2-D-400-12-HA4C
54mm 1U Front End DC-DC Power Supply Converter
D1U2
+Remote Sense
D5
+DC out
P5-P8
P1-P4 _{DC out return}
D4 ^{-Remote Sense}
D3 ^12LS
-
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
+DC out
D5
P5-P8
12V load
DC out return P1-P4
-Remote Sense
D4
12LS
D3
D1U2
A4, A5, B4, B5 ^5VSB
A2 ^PSON_L
B2, B3, C2-C5, D2, E2, E5 _RTN
Close switch (or FET, BJT, or wire)
to turn on +DC out
+5V logic circuitry
5VSB
PSON_L
A4, A5, B4, B5
A2
RTN B2, B3, C2-C5, D2, E2, E5
A3 _{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.
www.murata-ps.com/support
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