This part is a kind of semiconductor called SAQ8818.

Function of this product has High Performance PWM Controller.

Manufacturers : SAQCN

Image and pinout :

Some of the text within the PDF file :

SAQ8818 V1.0 SPECIFICATION FOR APPROVAL OR R&D PRODUCT PRODUCT DES CUSTOMER DATE : : : : APPROVED BY NOTE High Performance ---PWM Controller CUSTOMER SIGNATURE (S) The information given in this document is carefully checked and believed to be reliable. SAQ reserves the right to make changes in product or specification at any time and without further notice. SAQ products are not intended for use in systems in which failures of product could result in personal injury. All mentioned trademarks are registered trademarks of their owner. SAQ8818 V1.0 产品概述: z SAQ8818 及其运用是一个功能强大的开关电源方案,采用独到的技术,根据不同 的设计适合液晶产品用 CCFL 背光、EEFL 背光、LED 背光的管理，�� [ ... ]

SAQ8818 PDF Datasheet Download