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CPA Series
Selection Chart
Output 1
Output 2
U
I
U
o nom
o max
o nom
[V
]
[A]
[V
]
DC
DC
5.0
40
3.3
5.0
50
3.3
Purpose / Description
The maxpowerPRO Series are highly reliable power supplies for CompactPCI
communications, industrial, military, aerospace, and other applications. These power supplies offer high power density in plug-
in modules that meet the requirements of the PICMG
The converters use the patented EDGE
extremely high efficiency, excellent reliability, full input-to-output isolation, negligible inrush current, hot-swap capability, soft
start, and overtemperature protection.
The inputs are protected against surges and transients occurring on the source lines and cover an operating input voltage
range from 90 to 264 V
.
AC
Please read this operation instruction carefully before applying power. The warranty is subject to correct
input voltages being applied. Repairs or modifications made by anyone other than SCHROFF will
invalidate the warranty. This documentation has been complied with the utmost care. We cannot however
guarantee its correctness in every respect.
March 24, 2009
OPERATING INSTRUCTIONS
Output 3
I
U
I
o max
o nom
o max
[A]
[V
]
[A]
DC
40
12
5.5
60
12
12
®
TM
technology and provide important advantages such as flexible output power,
Important Note
AC/DC
Converter compactPCI
•
Fully compliant with PICMG 2.11 compactPCI
specification
•
High density design in industry standard
3 U x 8 HP x 160 mm cassette 250 W
6 U x 8 HP x 160 mm cassette 500 W
•
Input voltage range 90...264V
•
4 high current outputs with flexible load
distribution
•
Highly efficient topology with synchronous
rectifiers
•
Included Or-ing FETs / Diode for true
redundant operation
•
Remote sense, active current share for 3
outputs
•
compactPCI compatible signalling
•
Safety according IEC/EN 60950-1 and
UL 60950-1: cRUus / CE / TÜV
Output 4
Input
U
I
Voltage
o nom
o max
[V
]
[A]
[V
U
DC
i
AC
-12
2
90 - 264
-12
4
90 - 264
power interface specification for CompactPCI
www.schroff.biz
13100 – 141 250 W
13100 – 145 500 W
AC
Rated
Type
Power
]
[W]
P
o nom
250
CPA250
500
CPA500
®
systems, which are increasingly used in
®
systems.
73972-077/52
with PFC
Schroff
part
number
13100-141
13100-145
1
Page
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Table of Contents
Summary of Contents for schroff maxpowerPRO CPA Series
- Page 1 Please read this operation instruction carefully before applying power. The warranty is subject to correct input voltages being applied. Repairs or modifications made by anyone other than SCHROFF will invalidate the warranty. This documentation has been complied with the utmost care. We cannot however guarantee its correctness in every respect.
-
Page 2: Input Fuse
Note: The inrush current limitation is achieved using electronic circuitry. For effective limitation the converter should not be switched on and off more frequently than every 8 seconds. Efficiency The efficiency graph in the following figure shows the dependence on input voltage (CPA models). Page 2 www.schroff.biz... - Page 3 ±0.3 ±0.5 mV/K 0 – I – V o nom i min i max of output voltage Minimum load is only required to maintain regulation of Vo4 Droop characteristic for passive current sharing www.schroff.biz March 24, 2009 Page 73972-077/52...
- Page 4 C max αV coefficient ±0.3 ±0.5 mV/K 0 – I – V o nom i min i max of output voltage Minimum load is only required to maintain regulation of Vo4 Droop characteristic for passive current sharing Page 4 www.schroff.biz...
-
Page 5: Thermal Considerations
The output power returns to the normal value, when the temperature drops back below this limit; see Temperature Warning and Shutdown. Output power versus temperature T at V i nom (CPA500/550) www.schroff.biz March 24, 2009 Page 73972-077/52... -
Page 6: Output Filter
The enable pin 27 (EN#) must be connected to a return pin (e.g., pin 22) enable the converter. Pin 27 is shorter than the others ensuring startup only, when all other pins are already connected to the system providing true hot-swap capability. Page 6 www.schroff.biz... - Page 7 0.8 V Sense line data Note: If the sense lines S+ and S– compensate for a considerable voltage drop, the output loads shall be reduced in order to respect the maximum output power. www.schroff.biz March 24, 2009 Page 73972-077/52...
- Page 8 An increase in output current decreases the output voltage according to the following graph. ∆V –4% +2% Output voltage V versus output current I LEDs A green LED "Input OK" and a red LED "Fault" are incorporated in the front panel. Page 8 www.schroff.biz...
-
Page 9: Electromagnetic Compatibility (Emc)
Typical disturbance voltage (peak) at the line input according to EN 55022, measured at V and I according to EN 55022, measured at V and I i nom o nom i nom o nom CPA500 CPA250 www.schroff.biz March 24, 2009 Page 73972-077/52... - Page 10 Ground fixed 40 °C 70 °C Unit case temperature benign 40 °C mobile 50 °C MTBF acc. to CPA250 279 000 57 000 31 000 33 000 MIL-HDBK-217F, notice 2 CPA500 195 000 35 000 17 000 16 000 Page 10 www.schroff.biz...
-
Page 11: Mechanical Data
L=first mate, M=second mate, S=last mate Overall size: 162.5 mm x 128.7 mm x 40.6 mm Weight: 0.8 kg For future options Overall size: 223.4 mm x 162.5 mm x 40.6 mm Weight: 1.65 kg www.schroff.biz March 24, 2009 Page 73972-077/52... -
Page 12: Caution & Notes
Power Supply. LIMITED WARRANTY Schroff warrants each power supply of its manufacture for a period of two (2) years from the date of original shipment. This warranty applies to defects in materials and workmanship that result in non- performance to published specifications.
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