CFM750E
750 Watt
- 750 Watt continuous power
- Parallel switching
- I2C bus
The series CFM750E high performance power supplys are provided with a I2C interface for analyzing operational parameters such as output voltage and current, temperature, ventilator monitoring etc. The various control and monitoring functions are supplied by a +5 Vsb voltage. An active current sharing function is available for parallel operation of several adapters or for redundancy (n+1). For voltage increase the adapters can also be operated in series.
| Technical data |
|
|---|---|
| Input voltage |
90…264 VAC, active PFC |
| Input frequency |
47…63 Hz |
| Input current |
4 A (115 VAC), 2 A (230 VAC) |
| Inrush current |
<40 A (230 VAC), +25 °C |
| Efficiency |
89…92 % |
| Hold up time |
App. 20 ms |
| Protection |
Short circuit protection: Switch off with auto recovery |
| Line regulation |
±0.5 % at rated load and input voltage change of 90…264 VAC |
| Load regulation |
±1 % (A1 load step ±40 % related to 60 % load, 230 VAC) |
| Earth leakage current |
<3.5 mA |
| Safety / EMC |
TÜV / UL / CB / CE |
| Operating temperature |
-10…+65 °C |
| Derating |
In the range of +40…+65 °C, 2.5 % / °C, 90…110 VAC, 1 % / VAC |
| MTBF |
81 000 h according to MIL-HDBK-217F at +25 °C, with fan |
| Storage temperature |
-40…+85 °C |
| Operating humidity |
10…90 % RH, non-condensing |
| Dimensions (WxDxH) |
101.6 x 280 x 41.9 mm ±0.5 mm |
| Weight (net) |
1.75 kg |
| Product-specific data |
|---|
| Remote Sense |
At connector CN1 |
| Adjustment range |
CFM750E-240 (22.8…26.4), CFM750E-360 (34.2…39.6), CFM750E-480 (45.6…52.8) |
| Fan |
With Fan Speed Control |
| Redundancy |
N+1 with Active Current Sharing (see page 2) |
|
Article |
Output |
Output current |
Output current |
Ripple & |
Efficiency |
|---|---|---|---|---|---|
| CFM750E-240 |
+24 V |
0 A |
31.2 A |
<200 mVss |
89 % |
| CFM750E-360 |
+36 V |
0 A |
20.8 A |
<240 mVss |
91 % |
| CFM750E-480 |
+48 V |
0 A |
15.6 A |
<240 mVss |
92 % |
Ripple and Noise was measured by a 20 MHz bandwidth limited oscilloscope with connected 100 nF and 47 µF capacitors at the output. Measurement were taken at 25 °C, 230 VAC and 60 % load. As a power component this PSU is for assembly purposes only and must not be operated in unassembled condition. The final assembly has to comply with the valid EMC and safety standards.
