This part is a kind of semiconductor called TDA4863.
Function of this product has Boost Controller.
Manufacturers : Infineon Technologies
Image and pinout :

Some of the text within the PDF file :
Data Sheet, V1.0, May 2003 Boost C on t r o l l e r TDA4863 Power Factor Controller IC for High Power Factor and Low THD DataShee Power Management & Supply N e v e r DataSheet4 U .com s t o p t h i n k i n g . TDA4863 Revision History: Previous Version: Page Subjects (major changes since last revision) Document’s layout has been changed: 2002-Sep. For questions on technology, delivery and prices please contact the Infineon Technologies Offices in Germany or the Infineon Technologies Companies and Representatives worldwide: see our webpage at http://www.infineon.com. 2003-05 V1.0 etcom DataShee Edition 2003-05 Published by Infineon Technologies AG, St.-Martin-Strasse 53, 81669 München [ ... ]
TDA4863 PDF Datasheet Download
