TDA4863-2数据手册集成电路（IC）的PFC（功率因数校正）规格书PDF

描述 Description

Fully compatible with the world standard, TDA4863-2 is optimized to offer extremely compact and cost effective PFC solutions for electronic ballast and off-line SMPS. By using a zero current detector for discontinuous operation mode a near unity power factor and an excellent THD are achieved.

特性 Features

• High power factor Power

• Controls boost converter as active harmonic filter for low THD

• Start up with low current consumption

• Zero current detector for discontinuous conduction mode

• Output overvoltage protection

• Output undervoltage lockout

• Internal start up timer

• Totem pole output with active shut down

• Internal leading edge blanking LEB

• Improvements of TDA48632 to TDA4862:

• Very low start up current

• Very low comparator and multiplier offsets for universal input applications

• High sophisticated amplifier for low distortion inteferences caused by MOSFET switching

• Accurate overvoltage threshold

• High gate drive capability (TDA48632 only)

优势:

应用 Application

• SwitchedMode Power Supplies

•  Electronic Ballasts

简介

TDA4863-2属于集成电路（IC）的PFC（功率因数校正）。由制造生产的TDA4863-2PFC（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。