This post explains for the semiconductor OZ9902.
The Part Number is OZ9902.
The function of this semiconductor is (OZ99xx) Intelligent Lighting.
Manufacturers : O2Micro
Preview images :
OZ9902 is a dual, high power LED driver designed to build LED backlight for largesize LCD TV applications. It integrates two independently-controlled LED drivers to
achieve optimum effi ciency. The drive outputs are phase-shifted by 180 degrees to minimize current ripple in high power applications.
OZ9902 supports independent Pulse Width Modulation (PWM) dimming control for each channel and common analog dimming control for both channels. It provides system design fl exibility for LCD TV with local dimming or 3D display mode. […]