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FAN102 Datasheet Primary-side-control Pwm Controller

Manufacturer: Fairchild (now onsemi)

Overview: FAN102 — Primary-Side-Control PWM Controller FAN102 Primary-Side-Control PWM.

General Description

The primary-side PWM controller significantly simplifies power supply design that requires CV and CC regulation capabilities.

The FAN102 controls the output voltage and current precisely with the information in the primary side of the power supply, not only removing the output current sensing loss, but eliminating all secondary feedback circuitry.

The green-mode function with a low startup current (10 µA) maximizes the light-load efficiency so the power supply can meet stringent standby power regulations.

Key Features

  • Constant-Voltage (CV) and Constant-Current (CC) Control without Secondary-Feedback Circuitry.
  • Green Mode: Frequency Reduction at Light Load.
  • Fixed PWM Frequency at 42 kHz with Frequency Hopping to Reduce EMI.
  • Cable Voltage Drop Compensation in CV Mode.
  • Low Startup Current: 10 μA.
  • Low Operating Current: 3.5 mA.
  • Peak-Current-Mode Control in CV Mode.
  • Cycle-by-Cycle Current Limiting.
  • VDD Over-Voltage Protection with Auto-Restart.
  • VDD Under-Voltage L.

More Datasheets from Fairchild (now onsemi)

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FAN102 Distributor