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BUY TOP249YN https://www.utsource.net/itm/p/1110123.html
IC SW OFF-LINE PS 180/250W TO220
This is an integrated off-line switcher integrated circuit (IC) with a high voltage power MOSFET and a current mode PWM controller. Features: rn High voltage power MOSFET rn Current mode PWM controller rn Low start-up current rn Internal soft start rn Over-temperature protection rn Under-voltage lockout rn Over-voltage protection rn Short-circuit protection rn Over-current protection rn High efficiency rn Low EMI rn Low standby power Applications: rn Switching power supplies rn Off-line AC/DC converters rn AC/DC adapters rn Battery chargers rn Lighting applications rn Automotive applications (For reference only)