SC3654 Overview
Features SC3654 is a controller for Continuous Conduction Mode (CCM) Power Factor Correction step−up pre−converters. It controls the power switch conduction time (PWM) in a fixed frequency mode and in dependence on the instantaneous coil current. SC3654 minimizes the number of external ponents and drastically simplifies the PFC implementation.
SC3654 Key Features
- Average Current Continuous Conduction Mode
- Fast Transient Response
- Very Few External ponents
- Low Startup Current and Shutdown Current
- ±1.5 A Totem Pole Gate Drive
- Low Operating Consumption
- Accurate Fully Integrated 65kHz Oscillator
- Soft-Start for Smoothly Startup Operation
- Undervoltage Detection for Open Loop
- Overvoltage Protection