FL6961MY

Overview

The FL6961MY is a power factor correction (PFC) controller manufactured by onsemi. It implements average current mode control to regulate the input current waveform, ensuring high efficiency and low total harmonic distortion in AC-DC conversion systems. The device integrates a fixed-frequency oscillator and error amplifier for stable operation across varying line and load conditions.

Feature Summary

• Implements average current mode control for precise regulation of input current waveforms
• Integrates an internal fixed-frequency oscillator to simplify external component requirements
• Includes an error amplifier for maintaining stable output voltage under varying load conditions

Applications

• Power factor correction stages in offline AC-DC power supplies
• High-efficiency LED driver front-end circuits
• General-purpose AC-DC converter designs requiring compliance with harmonic standards

Procurement Notes

Verify the specific manufacturer source when sourcing this component, as distribution channels may list it under various parent company names or legacy branding. Confirm that the received part matches the exact marking code and package type specified in the official datasheet to ensure functional compatibility within your design.

Selection Notes

Select this controller for designs prioritizing high power factor and low harmonic distortion without complex digital processing. It is suitable for applications where a robust analog solution is preferred over programmable alternatives, particularly in cost-sensitive consumer electronics and lighting fixtures.

Part Context

This component belongs to the family of power management integrated circuits designed for efficient energy conversion. It serves as a critical element in modern switching power supplies, addressing regulatory requirements for electromagnetic interference and grid efficiency through active PFC techniques.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.