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BUY UCC3802D https://www.utsource.net/itm/p/148405.html
Low-Power BiCMOS Current-Mode PWM
Description: The UCC3802D is a high-performance, low-cost, current-mode PWM controller with a wide range of features. It is designed for use in off-line and DC-to-DC converters. Features: Low start-up current Low operating current Internal soft-start Internal slope compensation Internal oscillator Internal leading edge blanking (LEB) Internal over-current protection Internal over-voltage protection Internal under-voltage lockout Internal thermal shutdown Frequency jittering Cycle-by-cycle current limit Programmable frequency Programmable dead time Programmable soft-start Programmable over-voltage protection Programmable under-voltage lockout Applications: Offline and DC-to-DC converters AC-DC power supplies SMPS Battery chargers LED lighting Motor control (For reference only)