FAN4801S - Fairchild Semiconductor

FAN4801S PFC/PWM Controller Combination

The highly integrated FAN4800AS/CS/01S/02S parts are specially designed for power supplies that consist of boost PFC and PWM. They require very few external components to achieve versatile protections / compensation. They are available in 16-pin DIP and SOP packages. The PWM can be used in either current or voltage mode. In voltage mode, feed-forward from th.

Features

 Pin-to-Pin Compatible with ML4800 and FAN4800 and CM6800 and CM6800A
 PWM Configurable for Current Mode or Feedforward Voltage-Mode Operation
 Internally Synchronized Leading-Edge PFC and Trailing-Edge PWM in One IC
 Low Operating Current
 Innovative Switching-Charge Multiplier Divider
 Average-Current Mode for Input-Current Shaping
 PFC Over-Voltage and Under-Voltage Protections
 PFC Feedback Open-Loop Protection
 Cycle-by-Cycle Current Limiting for PFC/PWM
 Power-on Sequence Control and Soft-Start
 Brownout Protection
 Interleaved PFC/PWM Switching
 Improved Efficiency at Light.