AP3917DUNIVERSAL AC VOLTAGE STEP DOWN POWER SWITCHERDescriptionPin Assignments The AP3917D is a universal AC voltage step-down power switcher, (Top View) which is specially designed for home appliance and IoT applications
with non-isolated buck solution or offline flyback solution. NC 1 7 Drain The device integrates a 700V high performance Power MOSFET. Coordinating with a single-winding inductor, it uses fewer external NC 2
components and provides a low Bill Of Material (BOM) cost solution. T S 3 6 FB C The AP3917D can achieve excellent regulation and high power U efficiency. The peak current and switching frequency continuously 5 D S 4 BP reduce as the load decreases, so it can get excellent efficiency O performance at light load and improve the overall system efficiency. RP The AP3917D has multiple protection features to enhance the system SO-7W safety and reliability. It has over temperature protection, under- E voltage lock function, output short protection, overload protection, and NApplications open-loop protection. Non-Isolated Home Appliances: AC Fans, Rice Cookers, Shavers; Milk Machines The AP3917D is available in the SO-7 package. IoT Applications Industrial Controls Features Standby and Auxiliary Universal 85VAC to 265VAC Input Range Internal MOSFET of 700V Maximal Peak Current: 500mA Typical Improved Constant Voltage: ±5%