SG6961 Datasheet (Fairchild Semiconductor)

SG6961, Power Factor Controller

The SG6961 is an 8-pin boundary mode PFC controller IC intended for controlling PFC pre-regulators.

The SG6961 provides a controlled on-time to regulate the output DC voltage and achieve natural power factor correction.

The maximum on-time of the external switch is programmable to ensure safe operat

SG6961 Features

* Boundary Mode PFC Controller Low Input Current THD Controlled On-Time PWM Zero-Current Detection Cycle-by-Cycle Current Limiting Leading-Edge Blanking Instead of RC Filtering Low S