FSFR1700 Datasheet PDF - Fairchild

●Description

●The FSFR-series are a highly integrated power switches designed for high-efficiency half-bridge resonant converters. Offering everything necessary to build a reliable and robust resonant converter, the FSFR-series simplifies designs and improves productivity, while improving performance. The FSFR-series combines power MOSFETs with fast-recovery type body diodes, a high-side gate-drive circuit, an accurate current controlled oscillator, frequency limit circuit, soft-start, and built-in protection functions.

●Features

●Variable Frequency Control with 50% Duty Cycle for Half-bridge Resonant Converter Topology

●High Efficiency through Zero Voltage Switching (ZVS)

●Internal SuperFET™s with Fast-Recovery Type Body Diode (trr=120ns) for FSFR2100 and UniFETs with Fast-Recovery Type Body Diode (trr<160ns) for FSFR2000/1900/1800/1700.

●Fixed Dead Time (350ns) Optimized for MOSFETs

●Up to 300kHz Operating Frequency

●Pulse Skipping for Frequency Limit (Programmable) at Light-Load Condition

●Remote On/Off Control Using Control Pin

●Protection Functions: Over-Voltage Protection (OVP), Over-Load Protection (OLP), Over-Current Protection (OCP), Abnormal Over-Current Protection (AOCP), Internal Thermal Shutdown (TSD)

●Applications

●PDP and LCD TVs

●Desktop PCs and servers

●Adapters

●Telecom Power Supplies

●Audio Power Supplies