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BUY VIPER20ASP-E https://www.utsource.net/itm/p/5381026.html
SMPS primary I.C.
Description: The VIPER20ASP-E is a high performance, low power off-line SMPS controller with an integrated 700V power MOSFET. Features: Low start-up current Low operating current Overvoltage protection Undervoltage protection Overcurrent protection Short-circuit protection Thermal shutdown Over temperature protection Soft start Internal compensation Frequency jittering Cycle-by-cycle current limit Internal slope compensation Internal leading edge blanking Internal frequency foldback Internal VCC undervoltage lockout Internal VCC overvoltage lockout Internal VCC brown-out protection Internal VCC overcurrent protection Internal VCC over temperature protection Applications: Off-line SMPS AC/DC adapters Battery chargers Lighting applications Motor drives Industrial power supplies (For reference only)