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FSEM311Z - Green Mode Fairchild Power Switch

Download the FSEM311Z datasheet PDF. This datasheet also covers the FSEM311 variant, as both devices belong to the same green mode fairchild power switch family and are provided as variant models within a single manufacturer datasheet.

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.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (FSEM311-FairchildSemiconductor.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Fairchild (now onsemi)

Part Number Description
FSEM311 Green Mode Fairchild Power Switch
FSES0765RG Green Mode Fairchild Power Switch
FSEZ1016A Primary-Side-Regulation PWM Integrated Power MOSFET
FSEZ1216 Primary-Side-Regulation PWM Integrated Power MOSFET
FSEZ1216B Primary-Side-Regulation PWM Integrated Power MOSFET

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.

View original datasheet text
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