FSBH0F70WA Datasheet | Fairchild Semiconductor

FSBH0F70WA/0170W/0270W - Green Mode Fairchild Power Switch (FPS™) June 2013 FSBH0F70WA, FSBH0170W, FSBH0270W Green Mode Fairchild Power Switch (FPS™) Features - Brownout Protection with Hysteresis - Built-In 5 ms Soft-Start Function - Internal Avalanche-Rugged 700 V Sense FET - Low Acoustic Noise During Light-Load Operation - High-Voltage Startup - Linearly Decreasing PWM Frequency to 18 KHz - Peak-Current-Mode Control - Cycle-by-Cycle Current Limiting - Leading-Edge Blanking (LEB) - Synchronized Slope pensation - 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 Applications General-purpose switched-mode power supplies and flyback power converters, including: - Au xiliary Power Supply for PC and Server - SMPS for VCR, SVR, STB, D VD & D VCD Player, Printer, Facsimile, and Scanner - Adapter for Camcorder Description The highly integrated FSBH-series consists of an integrated current-mode Pulse Width Modulator (PWM) and an avalanche-rugged 700 V Sense FET. It is specifically designed for high-performance offline Switched-Mode Power Supplies (SMPS) with minimal external ponents. The integrated PWM controller Features include a proprietary green-mode function that provides off-time modulation to linearly decrease the switching frequency at light-load conditions to minimize standby power consumption. To avoid acoustic-noise problems, the minimum PWM frequency is set above 18 k Hz. This green-mode function enables the power supply to meet international power conservation requirements. The PWM controller is manufactured using the Bi CMOS process to further reduce power consumption. The FSBH-series turns off some internal circuits to improve power saving when VFB is lower than 1.6 V, which allows an operating current of only 2.5 m...