FAIRCHILD FSQ0565RS FSQ0565RQ Green-Mode Fairchild Power Switch (FPS ) for Quasi-Resonant Operation -Low EMI High Efficiency handbook

About this manual

The FSQ0565RS/RO is an integrated Pulse-Width Modulation (PWM) controller and SenseFET specifically designed for quasi-resonant operation and Alternating Valley Switching (AVS). This device is optimized for Quasi-Resonant Converters (QRC) to provide high efficiency through minimum voltage switching and narrow frequency variation over wide load and input voltage variations. It features advanced burst-mode operation for low standby power consumption and includes various protection functions such as overload, over-voltage, internal thermal shutdown, and output short protection.

What's inside

• Features
• Applications
• Ordering Information
• Application Diagram
• Block Diagrams
• Pin Configuration
• Pin Definitions
• Absolute Maximum Ratings
• Electrical Characteristics
• Thermal Impedance

Specifications

Frequently asked questions

What is the primary application for the FSQ0565RS/RO?

It is optimized for Quasi-Resonant Converters (QRC) and Alternating Valley Switching (AVS).

Does the device include built-in protection functions?

Yes, it includes Overload Protection (OLP), Over-Voltage Protection (OVP), Internal Thermal Shutdown (TSD), and Output Short Protection (OSP).