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FSEM311 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)

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FSEM311 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 ponents. All Ex series devices are integrated high voltage power switching regulators which bine an avalanche rugged Sense FET with a current mode PWM control block. The integrated PWM controller.