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FSEM311 - Green Mode Fairchild Power Switch

General Description

The FSEM311 family of integrated Pulse Width Modulator (PWM) and Sense FET are specifically designed for high performance offline Switch Mode Power Supplies (SMPS) with minimal external components.

Key Features

  • Internal Avalanche Rugged Sense FET.
  • Precision Fixed Operating Frequency.
  • Internal Start-up Circuit.
  • Pulse-by-Pulse Current Limiting.
  • Over Voltage Protection (OVP).
  • Over Load Protection (OLP).
  • Internal Thermal Shutdown Function (TSD).
  • Auto-Restart Mode.
  • Under Voltage Lockout (UVLO).
  • Low Operating Current (3mA).
  • Adjustable Peak Current Limit.
  • Built-in Soft Start.

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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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FSEM311, FSEM311Z — Green Mode Fairchild Power Switch (FPS™) January 2009 FSEM311, FSEM311Z Green Mode Fairchild Power Switch (FPS™) Features ƒ Internal Avalanche Rugged Sense FET ƒ Precision Fixed Operating Frequency ƒ Internal Start-up Circuit ƒ Pulse-by-Pulse Current Limiting ƒ Over Voltage Protection (OVP) ƒ Over Load Protection (OLP) ƒ Internal Thermal Shutdown Function (TSD) ƒ Auto-Restart Mode ƒ Under Voltage Lockout (UVLO) ƒ Low Operating Current (3mA) ƒ Adjustable Peak Current Limit ƒ Built-in Soft Start Applications ƒ SMPS for STB, DVD & DVCD Player ƒ SMPS for Auxiliary Power Description The FSEM311 family of integrated Pulse Width Modulator (PWM) and Sense FET are specifically designed for high performance offline Switch Mode Power Supplies (SMPS) with minimal external compo