Product Details

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[ Fairchild ]

Description

The FSFR-HS is a highly integrated power switch designed for high-efficiency half-bridge resonant converters. Offering everything necessary to build a reliable and robust resonant converter, the FSFR-HS simplifies designs while improving productivity and performance. The FSFR-HS combines power MOSFETs, a high-side gate-drive circuit, an accurate currentcontrolled oscillator, 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)
■ Built-in High-Side Gate Driver IC
■ Internal UniFET™s with Fast-Recovery Type Body Diode (trr=160 ns Typical)
■ Fixed Dead Time (350 ns) Optimized for MOSFETs
■ Operating Frequency Up to 600 kHz for Soft-Start
■ Self Auto-Restart Operation for All Protections, Despite External LVCC Bias
■ Line UVLO with Programmable Hysteresis Level
■ Simple On/Off with Line UVLO Pin
■ Easy Configuration and Compatibility with FAN7930 for Line UVLO without External Components
■ Protection Functions: Over-Voltage Protection (OVP), Over-Current Protection (OCP), Abnormal OverCurrent Protection (AOCP), Internal Thermal Shutdown (TSD)

Applications

■ PDP and LCD TVs
■ Desktop PCs and Servers
■ Adapters
■ Telecom Power Supplies