AP3917B
Description
Pin Assignments
The AP3917B is a universal AC voltage input step-down power switcher, which is specially designed for home appliance and Io T applications with non-isolated buck solution or offline flyback solution.
(Top View)
The device integrates a 650V high performance Power MOSFET. Coordinating with a single-winding inductor, it uses fewer external ponents and provides a low Bill Of Material (BOM) cost solution.
NC 1 NC 2
7 Drain
The AP3917B can achieve excellent regulation and high power efficiency. The peak current and switching frequency continuously reduce as the load decreases, so it can get excellent efficiency performance at light load and improve the overall system efficiency.
S3 S4
6 FB 5 BP
The AP3917B has multiple protection features to enhance the system safety and reliability. It has over temperature protection, undervoltage lock function, output short protection, overload protection, and open-loop protection.
The AP3917B is available in the SO-7...
