onsemi FAN6921BMRMY, PFC Controller, 30 V 9-Pin, SOIC

The ON Semiconductor highly integrated FAN6921BMR combines power factor correction (PFC) controller and quasi−resonant PWM controller. The integration provide cost effect design and allow for fewer external components. It uses a controlled on−time technique to provide a regulated DC output voltage and to perform natural power factor correction.

Zero−Current Detection for PFC Stage
Quasi−resonant operation for PWM stage
Internal minimum tOFF 8 ms for QR PWM stage
Internal 10 ms soft−start for PWM
Brownout Protection