Sg6961sz Pfc Controller Ic

Being a well renowned firm in the domain, we are occupied in supplying a superior quality range of SG6961SZ PFC Controller IC in Shenzhen, Guangdong, China. 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 operation during AC brownouts. An
innovative multi-vector error amplifier is built in to provide rapid transient response and precise output voltage clamping. A built-in circuit disables the controller if the output feedback loop is opened. The start-up current is lower than 20I A and the operating current is under 4.5mA. The supply voltage can be up to 20V, maximizing application flexibility.

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 Start-up Current (10I A Typical)
>Low Operating Current (4.5mA Typical)
>Feedback Open-Loop Protection
>Programmable Maximum On-Time (MOT)
>Output Over-Voltage Clamping Protection
>Clamped Gate Output Voltage 16.5V