FSL4110LRN

The FSL4110LR is an integrated pulse width modulation (PWM)
controller and 1000 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 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.