BH0170A - Fairchild Semiconductor

BH0170A FSBH0170A

The highl y i ntegrated F SBH-series c onsists of an integrated curr ent-mode Puls e W idth Mod ulator (PW M) and an av alanche-rugged 700V S enseFET. It is specifically designed for high-p erformance offlin e Switched-Mode Po wer Su pplies (SMPS) with minimal external components. The integrate d PW M controller featur es includ e a proprietary green-mode fu.

Features

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 Brownout Protection with Hysteresis Built-In 5ms Soft-Start Function Internal Avalanche-Rugged 700V SenseFET Low 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 VDD Under-Voltage Lockout (UVLO) VDD Over-Voltage Protection (OVP) Internal Auto-Restart Circuit (OVP, OTP) Constant Power Limit (Full AC Input Range) Internal OTP Sensor with Hysteresis VIN Pin for.