LCM300 Series 310–350 Watt Front-end AC-DC Power Supplies

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The LCM300 series of enclosed front-end AC-DC power supplies comprises five single output models, providing standard voltages of 12 V, 15 V, 23 V, 36 V or 48 V, plus a 5 V standby output. Each model accepts a universal input of 90–264 Vac, carries medical safety approvals and has a typical full load efficiency of 91%. These PMBus™-compliant digitally controlled power supplies offer a high level of modification flexibility for application-specific functions such as special battery charging and management, peak load handling, voltage control and fan speed profiles. Housed in a compact 4 x 7 inch enclosure that is less than 1U high, LCM300 power supplies incorporate built-in smart fans for cooling and can deliver up to 310 watts of output power. The 24 V and 36 V models can deliver up to 350 watts at operating temperatures up to 45˚C.

LCM300 Datasheet(s)

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  • Total Max Power: 300 W
  • Total Max Current: 25 A
  • Input Voltage: 90 V to 264 V
  • Output Voltage: 9.6 V to 57.6 V
  • Outputs: Single
  • Size (L x W x H): 7.000" x 4.000" x 1.610"
  • Warranty: 3 years
  • Operating Temperature: -40°C to +70°C

Electrical Specifications

  • Input Range: 85-264 VAC 127-374 VDC
  • Frequency: 47-63 Hz
  • Inrush Current: <= 20 A Peak
  • Power Factor: 0.98 TYP
  • Hold-up Time: 20 mSec
  • Efficiency: >91% TYP
  • Leakage: <0.3 mA @ 264 VAC
  • Set Point: +/- 0.5%
  • Total Regulation: +/-2.0%
  • Noise (P-P): 1%
  • Max Units in Parallel: 10
  • Current Share: Forced to within 10%
  • Over Current Protection: 105% to 120% of rated output
  • Over Voltage Protection: 125% to 145% of rated output
  • Fan Noise: <45dBA, 80% load 40C Fan Off with Inhibit
  • 350W peak power
  • Low Cost
  • Industrial/Medical Safety
  • -40 to +70 Dec C operation (with derating above 50 C)
  • Option 5V standby
  • High Efficiency 91%
  • Variable Speed "Smart Fan"
  • DSP Controlled
  • PMBus Compliant
  • Conformal Coat Option
  • +/- 20% adjustment range
  • Margin Programming
  • Integrated OR-ing FET
  • EMI Level B
  • Optional Conformal Coat
  • Optional Constant Current