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DM311A Datasheet Green Mode Fairchild Power Switch

Manufacturer: Fairchild (now onsemi)

Overview: FSDM311A — Green Mode Fairchild Power Switch (FPSTM) November 2007 FSDM311A Green Mode Fairchild Power Switch.

General Description

The FSDM311A consists of an integrated Pulse Width Modulator (PWM) and SenseFET, and is specifically designed for high-performance, off-line, Switch-Mode Power Supplies (SMPS) with minimal external ponents.

This device is an integrated high-voltage power switching regulator that bines a VDMOS SenseFET with a voltage-mode PWM control block.

The integrated PWM controller

Key Features

  • Internal Avalanche-Rugged SenseFET.
  • Precision Fixed Operating Frequency: 67KHz.
  • Consumes Under 0.2W at 265VAC & No Load with Advanced Burst-Mode Operation.
  • Internal Start-up Circuit.
  • Pulse-by-Pulse Current Limiting.
  • Over-Voltage Protection (OVP).
  • Overload Protection (OLP).
  • Internal Thermal Shutdown Function (TSD).
  • Auto-Restart Mode.
  • Under-Voltage Lockout (UVLO) with Hysteresis.
  • Built-in Soft-Start.
  • Secondary-Side Regulation.

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