This part is a kind of semiconductor called HV9910C.

Function of this product has Universal High-Brightness LED Driver.

Manufacturers : Microchip

Image and pinout :

Some of the text within the PDF file :

HV9910C Universal High-Brightness LED Driver Features • Switch mode controller for single switch LED drivers • Enhanced drop-in replacement to the HV9910B • Open loop peak current controller • Internal 15 to 450V linear regulator • Constant frequency or constant off-time operation • Linear and PWM dimming capability • Requires few external components for operation • Over-temperature protection Applications • DC/DC or AC/DC LED driver applications • RGB back-lighting LED driver • Back lighting of flat panel displays • General purpose constant current source • Signage and decorative LED lighting • Chargers Description HV9910C is an open-loop, current-mode control, LED driver IC. This IC can be programmed to operate in either a constant frequency or constant off- [ ... ]

HV9910C PDF Datasheet Download