onsemi (Ansemi)

DIP-8

Tube

50

The FSQ0370 consists of an integrated current-mode pulse-width modulation (PWM) and an avalanche-rugged 700-V SenseFET. It is specifically designed for high-performance offline switch-mode power supplies (SMPS) with minimal external component count. The integrated PWM controller features include fixed-frequency generator oscillator, under-voltage (UVLO) protection, leading-edge spacing (LEB), optimized gate on/off driver, high temperature shutdown (TSD) protection for loop compensation temperature compensated accurate source current as well as a fault protection circuit. Compared to discrete MOSFET and controller or RCC switching converter solutions, the FSQ0370 reduces total parts count, design size and weight; while improving energy efficiency, productivity and system reliability. These devices provide a basic platform for cost-effective flyback converter designs such as PC auxiliary power supplies.