FAN6921ML Overview
The highly integrated FAN6921ML bines a Power Factor Correction (PFC) controller and a QuasiResonant PWM controller. Integration provides costeffect design and allows for fewer external ponents. For PFC, FAN6921ML uses a controlled on-time technique to provide a regulated DC output voltage and to perform natural power factor correction.
FAN6921ML Key Features
- Integrated PFC and Flyback Controller
- Critical Mode PFC Controller
- Zero-Current Detection for PFC Stage
- Quasi-Resonant Operation for PWM Stage
- Internal Minimum tOFF 8 µs for QR PWM Stage
- Internal 10 ms Soft-Start for PWM
- Brownout Protection
- H/L Line Over-Power pensation (OPC)
- Latched Protection (FB Pin)
- Externally Latch Triggering (RT Pin)
