ICE2QS01数据手册集成电路（IC）的PFC（功率因数校正）规格书PDF

描述 Description

ICE2QS01 is a quasi-resonant PWM controller optimized for off-line switch power supply applications such as LCD TV, CRT TV and notebook adapter. The digital frequency reduction with decreasing load enables a quasi-resonant operation till very low load.

特性 Features

• Quasiresonant operation till very low load
• Active burst mode operation at light load for low standby input power (< 1W)
• Digital frequency reduction with decreasing load
• Power cell for VCC pre-charging and IC power supply during latch-off, or standby mode operation when it is necessary
• Built-in digital soft-start
• Foldback correction and cycle-by-cycle peak current limitation
• Auto restart mode for VCC Overvoltage protection
• Auto restart mode for VCC Undervoltage protection
• Auto restart mode for openloop/overload protection
• Latch-off mode for adjustable output overvoltage protection
• Latch-off mode for Short-winding protection

简介

ICE2QS01属于集成电路（IC）的PFC（功率因数校正）。由制造生产的ICE2QS01PFC（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。