By ON Semiconductor 92
ON Semiconductor's FSL4110LR is an integrated pulse width modulation (PWM) controller and 1,000 V avalanche rugged SenseFET specifically designed for high input voltage offline switching mode power supplies (SMPS) with minimal external components. VCC can be supplied through the integrated high-voltage power regulator without auxiliary bias winding.
The integrated PWM controller includes a fixed-frequency oscillator, under-voltage lockout (UVLO), leading edge blanking (LEB), optimized gate driver, soft-start, temperature-compensated precise current sources for loop-compensation, and variable protection circuitry.
Compared with a discrete MOSFET and PWM controller solution, the FSL4110LR reduces total cost, component count, PCB size, and weight, while simultaneously increasing efficiency, productivity, and system reliability. This device provides a basic platform for cost-effective design of a flyback converter.
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