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FSDH321 Datasheet (fsdh321 / Fsdl321) Green Mode Fairchild Power Switch

Manufacturer: Fairchild (now onsemi)

Overview: .. .fairchildsemi. FSDH321, FSDL321.

General Description

Each product in the FSDx321 (x for H, L) family consists of an integrated Pulse Width Modulator (PWM) and Sense FET, and is specifically designed for high performance offline Switch Mode Power Supplies (SMPS) with minimal external ponents.

Both 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

Key Features

  • Internal Avalanche Rugged Sense FET.
  • Consumes only 0.65W at 240VAC & 0.3W load with Advanced Burst-Mode Operation.
  • Frequency Modulation for EMI Reduction.
  • Precision Fixed Operating Frequency.
  • Internal Start-up Circuit.
  • Pulse-by-Pulse Current Limiting.
  • Abnormal Over Current Protection (AOCP).
  • Over Voltage Protection (OVP).
  • Over Load Protection (OLP).
  • Internal Thermal Shutdown Function (TSD).
  • Auto-R.

Similar Datasheet

Brand Logo Part Number Description Manufacturer
ON Semiconductor Logo FSDH321 Green Mode Power Switch ON Semiconductor

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FSDH321 Distributor