FAN7530中文资料Critical Conduction Mode PFC Controller数据手册ONSEMI规格书

描述 Description

The FAN7530 is an active power factor correction (PFC) controller for the boost PFC applications that operates in critical conduction mode (CRM). It uses the voltage mode PWM that compares an internal ramp signal with the error amplifier output to generate MOSFET turn-off signal. Because the voltage mode CRM PFC controller does not need the rectified AC line voltage information, it can save the power loss of the input voltage sensing network necessary for the current mode CRM PFC controller.
FAN7530 provides many protection functions such as over voltage protection, open-feedback protection, over current protection, and under-voltage lockout protection. The FAN7530 can be disabled if the INV pin voltage is lower than 0.45V and the operating current decreases to 65µA. Using a new variable on-time control method, THD is lower than the conventional CRM boost PFC ICs.

特性 Features

■ Low Total Harmonic Distortion (THD)
■ Precise Adjustable Output Over-Voltage Protection
■ Open-Feedback Protection and Disable Function
■ Zero Current Detector
■ 150µs Internal Start-up Timer
■ MOSFET Over-Current Protection
■ Under-Voltage Lockout with 3.5V Hysteresis
■ Low Start-up (40µA) and Operating Current (1.5mA)
■ Totem Pole Output with High State Clamp
■ +500/-800mA Peak Gate Drive Current
■ 8-pin DIP or 8-pin SOPApplications
■ Adapter
■ Ballast
■ LCD TV, CRT TV
■ SMPS

应用 Application

■ Adapter
■ Ballast
■ LCD TV, CRT TV
■ SMPS

简介

FAN7530属于集成电路（IC）的PFC（功率因数校正）。由制造生产的FAN7530PFC（功率因数校正）功率因数校正 (PFC) 是用于调整交流电路中的电压和电流之间的相位角，使之趋近于零的半导体器件。不同模式包括平均电流、边界导通、连续导通、临界导通、电流控制式频率折返、不连续和不连续导通，开关频率从 6 kHz 至 1.7 MHz 可调。