FEATURES
Controller for ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! Inrush Current Control Separated PFC OVP pin Separated Power Ground and Analog Ground PWMSDB to turn off PWMCLK without disturbing PFC section 23V Bi-CMOS process VIN OK guaranteed turn on PWM Clock at 2.5V instead of 1.5V Internally synchronized leading edge PFC and trailing edge PWM Clock in one IC Slew rate enhanced transconductance error amplifier for ultra-fast PFC response Low start-up current (100µA typ.) Low operating current (3.0mA type.) Low total harmonic distortion, high PF Reduces ripple current in the storage capacitor between the PFC and PWM sections Average current, continuous or discontinuous boost leading edge PFC VCC OVP Comparator Low Power Detect Comparator PWM configurable for current mode or voltage mode operation Current fed gain modulator for improved noise immunity Brown-out control, over-voltage protection, UVLO, and soft start, and Reference OK SINGLE PFC CONTROLLER W/ INRUSH CURRENT CONTROL & SEPARATED PFCOVP GENERAL DESCRIPTION
The power supply of !
Champion
