FPM400 - 400 WATT Single Output MEDICAL POWER SUPPLIES

Medical Open Frame

The FPM400 series of AC-DC switching power supplies in a package of 4 x 7 x 1.58 inches are capable of delivering 400 watts of continuous power at 7 CFM forced air cooling or 300 watts at convection cooling. The units are constructed on a printed circuit board with a U-bracket for mechanical support and heat sinking. A cover and fan assembly can be added during manufacturing for 400 watt output without the change of any dimension. They are designed for medical applications.

• BF Class insulation
• Operation altitude up to 5000 meters
• 100-240 VAC input with active PFC
• Less than 300 μA leakage current
• Standby output 5VDC at 100mA
• EN55011 / 55022 Class B conducted emissions
• Inhibit - TTL low to disable output
• Standard PS Off and DC OK signals
• High Efficiency 92% typical
• Compliant with RoHS requirements

Input Voltage	90-264 VAC
Input frequency	47-63 Hz
Input Current	4.2 A (rms) @115 VAC, 60 Hz ; 2.1 A (rms) @ 230 VAC, 50 Hz
Earth leakage current	300 μA max. @ 264 VAC, 63 Hz
Touch current	100 μA max. @ 264 VAC, 63 Hz
Output voltage/current	See rating chart.
Maximum output power	See rating chart.
Ripple and noise	1% peak to peak maximum
Remote sense	Compensation for cable losses up to 0.5 V
Overvoltage protection	Set at 115-140% of nominal output voltage
Overcurrent protection	Protected to output short circuit conditions
Thermal shutdown	Protected to overtemperature conditions
Temperature coefficient	All outputs ±0.04% /℃ maximum
Transient response	Maximum excursion of 4%, recovering to 1% of final value within 500 us after a 25% step load change
Standby power	5 V at 100 mA maximum
Fan power	12 V at 250 mA maximum
Operating temperature	-10℃ to +70℃
Storage temperature	-40℃ to +85℃
Relative humidity	5% to 95% non-condensing
Derating	Derate from 100% at +50℃ linearly to 50% at +70℃, applicable to convection and forced-air cooling conditions
Switching frequency	85 KHz (typical)
Efficiency	Typical 89% @ 115 VAC, 92% @ 230 VAC
Hold-up time	12 ms minimum at 110 VAC & 400 W
Line regulation	±0.5% maximum at full load
Inrush current	20 A @ 115 VAC, or 40 A @ 230 VAC, at 25℃ cold start
Withstand voltage	4000 VAC from input to output (2 MOPP) ; 1500 VAC from input to ground (1 MOPP) ; 1500 VAC from output to ground
MTBF	350,000 hours at full load at 25℃ ambient, calculated per MIL-HDBK-217F EMC Performance
EN55011/ EN55022	Class B conducted, Class A radiated
EN61000-3-2	Harmonic distortion, Class A and D
EN61000-3-3	Line flicker
EN61000-4-2	ESD,±15 KV air and ±8 KV contact
EN61000-4-3	Radiated immunity, 10 V/m
EN61000-4-4	Fast transient/burst, ±2 KV
EN61000-4-5	Surge, ±1 KV diff., ±2 KV com
EN61000-4-6	Conducted immunity, 10 Vrms
EN61000-4-8	Magnetic field immunity, 30 A/m
EN61000-4-11	Voltage dip immunity, 30% reduction for 500 ms, 100% reduction for 10 ms
PFD	TTL logic high for normal operation and TTL logic low upon loss of input power. This signal appears at least 1 ms prior to master output dropping 5% below its nominal value. This signal also provides a minimum delay of 100 ms after master output is within regulation.
Inhibit	TTL low to turn off output
DC OK	TTL high when output voltage >95%
PS OFF	TTL high to turn off output