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SG6901A — CCM PFC / Flyback PWM Combination Controller
February 2009
SG6901A CCM PFC/Flyback PWM Combination Controller
Features
Interleaved PFC/PWM Switching Low Startup and Operating Current Innovative Switching Charge Multiplier Divider Multi-vector Control for Improved PFC Output
Transient Response
Average-Current-Mode Control for PFC Programmable Two-Level PFC Output Voltage
Protections
PFC and PWM Feedback Open-Loop Protection Cycle-by-Cycle Current Limiting for PFC/PWM Slope Compensation for PWM H/L Line Over-Power Compensation for PWM Brownout Protection Over-Temperature Protection (OTP)
Applications
Switching Power Supplies with Active PFC and
Standby Power
High-Power Adaptors
Description
The highly integrated SG6901A is designed for power supplies