摘要
UCC28019是一款8引脚的连续导电模式(CCM)控制器,能以极小的谐波失真获得接近单位功率因数的水平,非常适用于低成本的PFC应用。该器件具有宽泛的通用输入范围,适用于100W至2kW以上的功率因数变换器。本文主要介绍功率因数校正芯片UCC28019的特点、引脚功能、电气参数、功能描述及其典型应用。
The UCC28019 8-pin active Power Factor Correction (PFC) controller uses the boost topology operating in Continuous Con- duction Mode (CCM).Low-distortion wave-shaping of the input current using average current mode control is achieved without input line sensing.It is suitable extremely for the low cost PFC application.The controller is suitable for systems in the 100W to>2kW range over a wide-range universal AC line input.The characteristic,Pin function,Electrical parameters,functional description and ty...
出处
《电源世界》
2008年第8期63-69,共7页
The World of Power Supply
