LPS250 Series 250 Watt AC-DC Power Supplies

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LPS250
 

The LPS250 series of enclosed AC-DC power supplies comprises four single output models, providing standard voltages of 5 V, 12 V, 15 V or 24 V. Each model also provides 5 V standby and two 12 V fan outputs. The power supplies accept a universal input of 85–264 Vac or 120–300 Vdc and have a typical full load efficiency of 75%. Features include single wire current sharing, remote sense and remote inhibit, plus remote power fail and DC power good indication. Enclosed LPS250 power supplies can be specified with end or top mounted fans and deliver up to 250 watts of output power. Versions without a fan are available for applications which provide an alternative means of cooling.

LPS250 Datasheet(s)

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  • Total Max Power: 250 W
  • Total Max Current: 50 A
  • Input Voltage: 85 V to 264 V
  • Output Voltage: 3 V to 48 V
  • Outputs: Single
  • Size (L x W x H): 9.000" x 5.000" x 2.000"
  • Warranty: 2 years
  • Operating Temperature: 0 to +70°C

Electrical Specifications

  • Inrush current: 20 A max., cold start @ 25°C
  • Power factor: 0.99 typical
  • Safety ground leakage current: < 0.5 mA @ 50/60 Hz, 264 VAC input
  • EMI filter: FCC Class B conducted and radiated CISPR 22 Class
  • Frequency: 47 - 440 Hz
  • Efficiency: 75% typical at full load
  • Input range: 85 - 264 VAC; 120 - 300 VDC
  • Overvoltage protection: 5 V output: 5.7 to 6.7 VDC. Other models 10% to 25
  • Overload protection: Short circuit protection on all outputs
  • Hold-up time: 20 ms @ 250 W load, 115 VAC nominal line at factor
  • Supervisory output: 5 V @ 100 mA regulated; 12 V @ 500 mA
  • Adjustment range: 2:1 wide ratio
  • Maximum power: With cover: 250 W with 30 CFM forced air. (-C)
  • Remote sense: Compensates for 0.5 V lead drop min
  • Remote on/off: Requires external contact (N.O or N.C) to inhibit
  • DC OK: TTL logic goes high 50 - 150 msec after the output
  • Power failure: TTL logic signal goes high 50-150 msec after 5 Vo
  • DC power good
  • Cover -C
  • Optional end fan cover -CEF
  • Overload protection
  • 120 kHz switching frequency
  • Thermal overload protection
  • Overvoltage protection
  • 2 Supervisory outputs 5 V and 12 V
  • Low output ripple
  • Built-in EMI filter
  • Single wire current sharing
  • Power fail
  • Optional top with fan cover -CF
  • IEC EN6100-3-2 compliance
  • Remote sense & remote inhibit
  • Active power factor correction