FSBH0270 - Fairchild Semiconductor

FSBH0270 Green Mode Fairchild Power Switch

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. The integrated PWM controller features include a proprietary green-mode function that provides .

Features

ƒ Brownout Protection with Hysteresis ƒ Built-In 5ms Soft-Start Function ƒ Internal Avalanche-Rugged 700V SenseFET ƒ No Acoustic Noise During Light-Load Operation ƒ High-Voltage Startup ƒ Linearly Decreasing PWM Frequency to 18KHz ƒ Peak-Current-Mode Control ƒ Cycle-by-Cycle Current Limiting ƒ Leading-Edge Blanking (LEB) ƒ Synchronized Slope Compensation ƒ Internal Open-Loop Protection ƒ VDD Under-Voltage Lockout (UVLO) ƒ VDD Over-Voltage Protection (OVP) ƒ Internal Auto-Restart Circuit (OVP, OTP) ƒ Constant Power Limit (Full AC Input Range) ƒ Internal OTP Sensor with Hysteresis ƒ VIN Pin for .