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FSDM311 - Green Mode Fairchild Power Switch

General Description

The FSDM311 is an integrated Pulse Width Modulator (PWM) and Sense FET specially designed for high performance off-line Switch Mode Power Supplies (SMPS) with minimal external components.

Key Features

  • Green Mode Fairchild Power Switch (FPSTM).
  • Internal Avalanche Rugged Sense FET.
  • Precision Fixed Operating Frequency (67kHz).
  • Advanced Burst-Mode operation Consumes under 0.2W at 265Vac and no load.
  • Internal Start-up Switch and Soft Start.
  • Under Voltage Lock Out (UVLO) with Hysteresis.
  • Pulse by Pulse Current Limit.
  • Over Load Protection (OLP).
  • Over Voltage Protection (OVP).
  • Internal Thermal Shutdown Function (TSD).

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FSDM311A Green Mode Fairchild Power Switch
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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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www.fairchildsemi.com FSDM311 Features Green Mode Fairchild Power Switch (FPSTM) • Internal Avalanche Rugged Sense FET • Precision Fixed Operating Frequency (67kHz) • Advanced Burst-Mode operation Consumes under 0.2W at 265Vac and no load • Internal Start-up Switch and Soft Start • Under Voltage Lock Out (UVLO) with Hysteresis • Pulse by Pulse Current Limit • Over Load Protection (OLP) • Over Voltage Protection (OVP) • Internal Thermal Shutdown Function (TSD) • Secondary Side Regulation • Auto-Restart Mode TYPICAL POWER CAPABILITY PRODUCT FSDM311 FSDM311L Open Frame 230VAC ±15%(1) 20W 20W 85-265VAC 12W 12W Table 1. Notes: 1. 230 VAC or 100/115 VAC with doubler.