Description

The highly integrated FSBH-series consists of an integrated current-mode Pulse Width Modulator (PWM) and an avalanche-rugged 700V SenseFET. It is specifically designed for high-performance offline Switch Mode Power Supplies (SMPS) with minimal external components.

Features

? Brownout Protection with Hysteresis

? Built-In 5ms Soft-Start Function

? Internal Avalanche-Rugged 700V SenseFET

? No Acoustic Noise During Light-Load Operation

? High-Voltage Startup

? Linearly Decreasing PWM Frequency to 18KHz

? Peak-Current-Mode Control

? Cycle-by-Cycle Current Limiting

? Leading-Edge Blanking (LEB)

? Synchronized Slope Compensation

? Internal Open-Loop Protection

? VDDUnder-Voltage Lockout (UVLO)

? VDDOver-Voltage Protection (OVP)

? Internal Auto-RestartCircuit (OVP, OTP)

? Constant Power Limit (Full AC Input Range)

? Internal OTP Sensor with Hysteresis

? VIN Pin for Pull-HIGH Latch Function and Pull LOW Auto-Recovery Protection

Applications

General-purpose switch-mode power supplies and flyback power converters, including:

? Auxiliary Power Supply for PC and Server

? SMPS for VCR, SVR, STB, DVD & DVCD Player, Printer, Facsimile, and Scanner

? Adapter for Camcorder