This part is a kind of semiconductor called SM8002C.

Function of this product has AC/DC PWM Controller.

Manufacturers : SM MICRO

Image and pinout :

Some of the text within the PDF file :

AC/DC PWM Controller SM8002C DESCRIPTION The SM8002C is a current-mode PWM off-line SMPS primary controller which consumes only 0.25W under AC240V in standby and greatly reduces the cost of entire power panel. It offers over-current protection and under-voltage lockout. FEATURES 1. 1. 2. 3. 2. Low power on standby Over-current protection and under-voltage lockout Frequency dither for good EMI Switch frequency: 100 KHz Package: HDIP4 VDD APPLICATION 1. 2. 3. Battery chargers <10W adaptors DVD, DVB power supplies copyright © 2003-2010 ShenZhen Sunmoon Microelectronics CO.,LTD [ ... ]

SM8002C PDF Datasheet Download