FAN6961SY Datasheet PDF - ON Semiconductor

The FAN6961 is an 8-pin, boundary-mode, power factor correction controller intended for controlling PFC pre-regulators. The FAN6961 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 startup current is lower than 20 µA and the operating current has been reduced to under 6 mA. The supply voltage can be up to 25 V, maximizing application flexibility.

●Features

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● 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 Startup Current: 10 µA Typical

● Low Operating Current: 4.5 mA Typical

● Feedback Open-Loop Protection

● Programmable Maximum On-Time (MOT)

● Output Over-Voltage Clamping Protection

● Clamped Gate Output Voltage 16.5 V