This part is a kind of semiconductor called FAN7602B.
Function of this product has Green Current-Mode PWM Controller.
Manufacturers : Fairchild Semiconductor
Image and pinout :

Some of the text within the PDF file :
FAN7602B Green Current-Mode PWM Controller March 2007 FAN7602B Green Current-Mode PWM Controller Features Green Current-Mode PWM Control Fixed 65kHz Operation Internal High-Voltage Start-up Switch Burst-Mode Operation Line Voltage Feedforward to Limit Maximum Power Line Under-Voltage Protection Latch Protection & Internal Soft-Start (10ms) Function Overload Protection Over-Voltage Protection Low Operation Current: 1mA Typical 8-pin DIP/SOP Description The FAN7602B is a green current-mode PWM controller. It is specially designed for off-line adapter applications; DVDP, VCR, LCD monitor applications; and auxiliary power supplies. The internal high-voltage start-up switch and the burstmode operation reduce the power loss in standby mode. As a result, it [ ... ]
FAN7602B PDF Datasheet Download
