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This literature is subject to all applicable copyright laws and is not for resale in any manner.FSQ0170RNA, FSQ0270RNA Green Mode Fairchild Power Switch (FPS) October 2011 FSQ0170RNA, FSQ0270RNA Green Mode Fairchild Power Switch (FPS) Features Description Internal Avalanche Rugged 700V SenseFET The FSQ0170RNA, and FSQ0270RNA, consists of an integrated current mode Pulse Width Modulator (PWM) Consumes only 0.8W at 230 V & 0.5W Load with AC Burst-Mode Operation and an avalanche-rugged 700V Sense FET. It is Precision Fixed Operating Frequency, 100kHz specifically designed for high-performance off-line Switch Mode Power Supplies (SMPS) with minimal Internal Start-up Circuit and Built-in Soft-Start external components. The integrated PWM controller Pulse-by-Pulse Current Limiting and Auto-Restart features include: a fixed-frequency generating oscillator, Mode Under-Voltage Lockout (UVLO) protection, Leading Over-Voltage Protection (OVP), Overload Protection Edge Blanking (LEB), an optimized gate turn-on/turn-off (OLP), Internal Thermal Shutdown Function (TSD) driver, Thermal Shutdown (TSD) protection, and Under-Voltage Lockout (UVLO) temperature compensated precision current sources for Low Operating Current (3mA) loop compensation and fault protection circuitry. Adjustable Peak Current Limit Compared to a discrete MOSFET and controller or RCC switching converter solution, the FSQ0170RNA, and Applications FSQ0270RNA reduces total component count, design size, and weight while increasing efficiency, productivity, Auxiliary Power Supply for PC and Server and system reliability. These devices provide a basic SMPS for VCR, SVR, STB, DVD & DVCD Player, platform that is well suited for the design of cost-effective Printer, Facsimile & Scanner flyback converters, as in PC auxiliary power supplies. Adapter for Camcorder Related Application Notes 8-DIP AN-4134: Design Guidelines for Off-line Forward Converters Using Fairchild Power Switch (FPS) AN-4137: Design Guidelines for Off-line Flyback Converters Using Fairchild Power Switch (FPS) AN-4141: Troubleshooting and Design Tips for Fairchild Power Switch (FPS) Flyback Applications AN-4147: Design Guidelines for RCD Snubber of Flyback AN-4148: Audible Noise Reduction Techniques for FPS Applications Ordering Information Product Number Package Marking Code BV f R DSS OSC DS(ON) (MAX.) FSQ0170RNA 8DIP Q0170RA 700V 100kHz 11 FSQ0270RNA 8DIP Q0270RA 700V 100kHz 7.2 TM FPS is a trademark of Fairchild Semiconductor Corporation. 2006 Fairchild Semiconductor Corporation www.fairchildsemi.com FSQ0170RNA, FSQ0270RNA Rev. 1.0.5