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cPCI-D-3U-300C Series
300W 3Ux8HP DC/DC CompactPCI?
SELECTION GUIDE
Output Current 1
Model Number
Power
5V
3.3V
12V
-12V
For full details go to
www.murata-ps.com/rohs
CPCI-D-3U-300C
300W
30A
40A
5A
0.5A
Yes
Yes
INPUT CHARACTERISTICS
Parameter
Conditions
Min
Typ
Max
Units
UCT
OD
E PR
LET
BSO
FEATURES
? ? 3Ux8HP package
? 300W power at -5 to 55oC
O
Input Operating Voltage 36 72 Vdc
Inrush Current 48Vdc 20 A rms
Input Reverse Polarity A shunt diode across the input clears the input fuse in the event that the
OUTPUT CHARACTERISTICS
input polarity is reversed.
Output Current
Min Max
Output Nominal Voltage Load Regulation 1
V2
? PICMG 2.11 Compliant
? Widerange 36-72Vdc Input
? Active power factor correction to EN61000-3-2
V1 2
2
V3 2
V4 2
+5.0Vdc
+3.3Vdc
+12Vdc
-12Vdc
0A
0A
0A
0A
30A
40A
5A
0.5A
±1%
±1%
±4%
±4%
? Class B conducted EMI performance
? 47-pin I/O Connector
? 81% ef?ciency
Parameter
Line Regulation
5
PARD (V1)
Conditions
All outputs
20MHz bandwidth
Min
Typ
0.5
Max
75
Units
%
mV p-p
? Full power with just 250lfm air?ow
? Hot-swap capable
DESCRIPTION
The cPCI-D-3U-300C is a high-reliability, 300W, continu-
PARD (V2) 5
PARD (V3 & V4)
Hold-up Time
Turn-on Delay
Rise Time
5
20MHz bandwidth
20MHz bandwidth
72Vdc, full load
10% to 90% of full value
14
30
60
120
1
mV p-p
mV p-p
msec
sec
msec
ous power, 3Ux8HP CompactPCI? power supply devel-
oped for chassis’ with air?ows as low as 250lfm. The use
Transient Response
ΔV, 50% load step
Settling time
±5
500
%V nom
μsec
Current Share Tolerance
of 2 converters operating in parallel for the 3.3V and the
5V outputs enables maximum current draw on the two
outputs simultaneously. Compliant with the PICMG 2.11
standard.
With a widerange input of 36-72Vdc, safety agency ap-
provals to UL60950 and EN60950, EMI compliance to
Class B FCC and EN55022 standards, the cPCI-D-3U-
300C was designed with globally-deployed systems in
mind. Additional features include remote sense compen-
sation, unit enable control (EN#), output inhibit control
Over-Voltage and Short Circuit
Protection 6
Remote Sense Compensation 3
4
Isolation
V1, V2, & V3: Latching
V1, V2
V1, V2
Pri-Sec
Pri-Chassis
Sec-Chassis
110
3
1.5
100
200
130
±10
%V nom
mV
%
kVac
kVac
Vdc
(INH#), output fault signal (FAL#), and thermal warning
signal (DEG#). LEDs are provided for visual indication of
input power presence and output fault condition.
Notes:
1. Total power limited to 300W.
2. Maximum combined power from V1 & V3 not to exceed 185W. Maximum combined power for V2 & V4 not to exceed 140W.
3. Maximum voltage compensation for cable losses .
4. Tolerance applicable up to 6 parallel units. Single wire current share on V1 & V2 for 50% to 100% load.
5. Measured across 1μF ceramic capacitor and 120μF electrolytic capacitor.
6. Automatic recovery upon removal of overload condition.
www.murata-ps.com
cPCI-D-3U-300C.A01 Page 1 of 4
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