This part is a kind of semiconductor called MP3394S.

Function of this product has 4-String Max 200mA/String White LED Driver.

Manufacturers : MPS

Image and pinout :

Some of the text within the PDF file :

MP3394S The Future of Analog IC Technology Step-Up, 4-String Max 200mA/String White LED Driver FEATURES • • • • • • • • • • • 4-String, Max 200mA/String WLED Driver 5V to 28V Input Voltage Range 2.5% Current Matching Accuracy Between Strings Programmable Switching Frequency PWM or DC Input Burst PWM Dimming Open and Short LED Protection Programmable Over-Voltage Protection Cascading Capability with a Single Power Source Under-Voltage Lockout Thermal Shutdown TSSOP16EP, SOIC16 and SOIC20 Packages Desktop LCD Flat Panel Displays Flat Panel Video Displays 2D/3D LCD TVs and Monitors DESCRIPTION The MP3394S is a step-up controller with 4 current channels. It’s designed to drive WLED arrays for large-size LCD-panel backlighting applications. The MP3394S is flexible, and [ ... ]

MP3394S PDF Datasheet Download