LPQ250 Series

250 Watt AC-DC Power Supplies

The LPQ250 series of enclosed AC-DC power supplies can be specified with end or top fan covers. With either fan cover, the power supplies provide up to 250 watts. They can also be ordered without a fan for applications which provide an alternative means of cooling. The LPQ250 has four outputs, one of which is floating and user-adjustable.

Datasheet Technical Documentation Print this page
  • Total Max Power:
    250 W
  • Total Max Current:
    35 A
  • Input Voltage:
    85 V to 264 V
  • Output Voltage:
    -25 V to 25 V
  • Outputs:
    Quad
  • 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

  • Input
  • Output
  • Logic Control
  • Efficiency: 75% typical at full load
  • Safety ground leakage current: < 0.5 mA @ 50/60 Hz, 264 VAC input
  • EMI filter: FCC Class B conducted and radiated CISPR 22 Class
  • Power factor: 0.99 typical
  • Frequency: 47 - 440 Hz
  • Input range: 85 - 264 VAC; 120 - 300 VDC
  • Inrush current: 20 A max., cold start @ 25°C
  • Overvoltage protection: 5 V output: 5.7 - 6.7 VDC
  • Adjustment range: ± 5% min. on main: 5 - 25 V on 4th output
  • Maximum power: With cover: 250 W with 30 CFM forced air, (-C) (-C
  • Supervisory outputs: 5 V @ 100 mA regulated, 12 V @ 500 mA
  • Hold-up time: 16 ms @ 250 W load, 115 VAC nominal line
  • Overload protection: Short circuit protection on all outputs
  • DC OK: TTL logic goes high 50-150 msec after 5 V output
  • Remote sense: Compensates for 0.5 V lead drop min
  • Remote on/off: Requires external contact (N.O or N.C) to inhibit
  • Power failure: TTL logic signal goes high 50 - 150 msec after 5 V
  • 5.0V/3.3V dual outputs
  • Enable (on/off)
  • Output loadsharing
  • Industry standard pin-out
  • Trim feature, both rails
  • 100°C Baseplate temperature
  • Unencapsulated 2.3" x 2.4" x 0.50" pkg.
  • 48VDC Input
  • Thermal protection

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