LPQ350 Series 350 Watt AC-DC Power Supplies

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LPQ350
 

The LPQ350 series of enclosed AC-DC power supplies comprises two quad output models. One provides 5 V, 12 V and -12 V, the other provides 5 V, 15 V and -15 V. Both models also provide a user-adjustable 3.3 V to 24 V floating output, together with 5 V standby and 12 V fan outputs. The power supplies accept a universal input of 85–264 Vac or 120–300 Vdc. Features include single wire current sharing, remote sense on the 5 V and 3.3-24 V outputs, remote inhibit and remote power fail indication. Enclosed LPQ350 power supplies can be specified with end or top mounted fans and can deliver up to 350 watts of output power. Versions without a fan are available for applications which provide an alternative means of cooling.

LPQ350 Datasheet(s)

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  • Total Max Power: 350 W
  • Total Max Current: 50 A
  • Input Voltage: 85 V to 264 V
  • Output Voltage: -15 V to - 3.3 V
  • Outputs: Quad
  • Size (L x W x H): 9.000" x 5.000" x 2.500"
  • Warranty: 2 years
  • Operating Temperature: 0 to +70°C

Electrical Specifications

  • Inrush current: 38 A max., cold start @ 25°C
  • Frequency: 47-440 Hz
  • Power factor: 0.99 typical
  • Efficiency: 75% typical at full load
  • EMI filter: FCC Class B conducted and radiated CISPR 22 Class
  • Input range: 85-264 VAC; 120-300 VDC
  • Safety ground leakage current: <0.5 mA @ 50/60 Hz, 264 VAC input
  • Maximum power: With cover: 350 W with 30 CFM forced air, (-C) (-C
  • Overvoltage protection: 5 V output: 5.7-6.7 VDC.
  • Overload protection: Short circuit protection on all outputs. Case over
  • Supervisory output: 5 V @ 500 mA regulated, 12 @ 150 mA x2
  • Hold-up time: 20 ms @ 350 W load, 115 VAC nominal line
  • Adjustment range: ± 5% min. on main: 3.3-24 V on output 4
  • Remote on/off: Requires an external contact (N.O or N.C) to inhib
  • Remote sense: Compensates for 0.5 V lead drop min. Will operate
  • Power failure: TTL logic signal goes high 50-150 msec after 5 V o
  • DC OK: TTL logic goes high 50-150 msec after 5 V output.
  • Optional end-mounted fan -CEF
  • Optional with fan cover -CF
  • Cover -C
  • 135 khz switching frequency
  • DC power good
  • Thermal overload protection
  • Overload protection
  • 2 Supervisory output 5 V and 12 V
  • Active power factor correction
  • Single wire current sharing
  • Overvoltage protection
  • Power fail and remote inhibit
  • Remote sense on 1st and 4th output
  • IEC EN61000-3-2 compliance
  • Built-in EMI filter
  • Adjustable floating 4th output