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SG6961 Datasheet Power Factor Controller

Manufacturer: Fairchild (now onsemi)

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General Description

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.

Overview

Product Specification Power Factor Controller www.DataSheet4U.

Key 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 (10µA Typical) Low Operating Current (4.5mA Typical) Feedback Open-Loop Protection Programmable Maximum On-Time (MOT) Output Over-Voltage Clamping Protection Clamped Gate Output Voltag.

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