Description
The highly integrated FAN4800A/C and FAN4801/1S/2/2L 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.

FEATUREs
Pin-to-Pin Compatible with ML4800 and FAN4800 and CM6800 and CM6800A
PWM Configurable for Current-mode or Feed-forward Voltage-Mode Operation
Internally Synchronized Leading-Edge PFC and Trailing-Edge PWM in one IC
Low Operating Current
Innovative Switching-ChargeMultiplier 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
FAN4801/1S/2/2L Improve Efficiency at Light Load