FAN4801NY

PFC / PWM控制器组合 PFC/PWM Controller Combination

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