FAN4800CUN

PFC 和 PWM 组合控制器，Fairchild Semiconductor功率因数校正 PFC 和脉冲宽度调制器 PWM 控制器。### 功率因数矫正 PFC，Fairchild SemiconductorPFC 控制器解决方案包括连续传导模式 CCM、临界的/临界导电模式 CrCM/BCM、交错式 PFC 控制器、及 PFC 和 PWM 组合控制器。 所有控制器提供软启动、过压保护、开口反馈保护、过电流保护、输入电压缺乏保护、欠压闭锁保护的集成保护功能。

Description

The highly integrated FAN4800AU/CU parts are specially designed for power supplies that consist of boost PFC and PWM. They require very few external components to achieve versatile protections and compensation. They are available in 16-pin DIP and SOP packages.

Features

Pin-to-Pin Compatible with ML4800, FAN4800, 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-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

Line Sagging Protection

fRTCT=4•fPFC=4•fPWM for FAN4800AU

fRTCT=4•fPFC=2•fPWM for FAN4800CU