CPA250-4530 POWER ONE, CPA250-4530 Datasheet - Page 12

• Manufacturer Part Number: CPA250-4530
• Description: PWR SUP 250W 3.3/5/12/-12V QUAD
• Manufacturer: POWER ONE
• Series: CPAr

Specifications of CPA250-4530

• Voltage - Output: 3.3V, 5V, ±12V
• Number Of Outputs: 4
• Power (watts): 250W
• Applications: Commercial
• Power Supply Type: CompactPCI®
• Voltage - Input: 90 ~ 264VAC
• Mounting Type: Chassis Mount
• 1st Output: 5 VDC @ 40A
• 2nd Output: 3.3 VDC @ 40A
• 3rd Output: 12 VDC @ 5.5A
• 4th Output: -12 VDC @ 2A
• Size / Dimension: 6.40" L x 5.07" W x 1.60" H (162.5mm x 128.7mm x 40.6mm)
• Power (watts) - Rated: 250W
• Operating Temperature: -25°C ~ 50°C
• Efficiency: 82.6%
• Approvals: CE, cUL, EN, IEC, TUV, UL
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 179-2263

Active Current Sharing for Vo1, Vo2, Vo3
The current share facility, consisting of a single-wire link,
should be used, where several converters are operated in
parallel connection, for example, high reliability n+1
redundant systems or systems providing higher output
power.
Using this feature reduces the stress of the individual
converters and improves the reliablity of the system.
Interconnection of the current sharing terminals causes the
converters to share the output current evenly. In n+1
redundant systems a failure of a single converter will not
lead to a system failure, since the outputs are already
decoupled by FETs and diodes internally.
Passive Current Sharing for Vo4
The output voltage changes slightly with the output current
(droop characteristic) ensuring automatic current sharing
without further precautions, when several converters are
Fig. 12
Display status of LEDs
BCD20005-G Rev. AF, 18-Aug-10
Input OK
Note: Maximum six converters should be connected in
parallel.
Fault
Fault
Fault
Fault
-2 V
LED off
If +12 V bus voltage is present, LED is on.
V
i min
®
+0.8 V
LED Status undefined
200 – 550 Watt CompactPCI
+2.4 V
V
inh threshold
T
C max
I
V
oL
i max
+50 V
Page 12 of 19
06156a
LED on
V
T
V
I
O
i inh
C
i
V
connected in parallel. An increase in output current
decreases the output voltage according to fig. 11.
Fig. 11
Output voltage V
LEDs
A green LED "Input OK" and a red LED "Fault" are
incorporated in the front panel.
–4%
+2%
–4%
–2%
o4 set
LEDs "Input OK" and "Fault" status versus input voltage.
Conditions: P
LED "Fault" status versus output current.
Conditions: V
LED "Fault" status versus case temperature.
Conditions: P
LED "Fault" status versus V
Conditions: P
V
o
0.01
CPx500/550
®
AC-DC and DC-DC Converters
CPA, CPD Series Data Sheet
o
i min
o
o
– P
– P
– P
o 4
– V
versus output current I
o max
o max
o max
i max,
, T
, V
, V
0.5
C
T
i min
i min
CPx200/250
C
– T
inh
– T
– V
– V
.
C max
C max
i max
i max
, V
, V
, V
, T
inh
C
www.power-one.com
inh
inh
o 4
= open
– T
= open
= open
.
C max
1
I
o
/I
o nom