This part is a kind of semiconductor called 1200P100.

Function of this product has NCP1200P100.

Manufacturers : ON Semiconductor

Image and pinout :

Some of the text within the PDF file :

www.DataSheet.co.kr NCP1200 PWM Current−Mode Controller for Low−Power Universal Off−Line Supplies Housed in SO−8 or DIP−8 package, the NCP1200 represents a major leap toward ultra−compact Switch−Mode Power Supplies. Thanks to a novel concept, the circuit allows the implementation of a complete offline battery charger or a standby SMPS with few external components. Furthermore, an integrated output short−circuit protection lets the designer build an extremely low−cost AC/DC wall adapter associated with a simplified feedback scheme. With an internal structure operating at a fixed 40 kHz, 60 kHz or 100 kHz, the controller drives low gate−charge switching devices like an IGBT or a MOSFET thus requiring a very small operating power. Thanks to current−mode control, the NCP [ ... ]

1200P100 PDF Datasheet Download