This part is a kind of semiconductor called KA7500B.

Function of this product has VOLTAGE-MODE PWM CONTROLLER.

Manufacturers : Samsung

Image and pinout :

Some of the text within the PDF file :

KA7500B Industrial CD-ROM(Edition 3.0) This Data Sheet is subject to change without notice. Page : 1 ( KA7500B ) (C) 1996 Samsung Electronics Printed in Korea. KA7500B Industrial CD-ROM(Edition 3.0) This Data Sheet is subject to change without notice. Page : 2 ( KA7500B ) (C) 1996 Samsung Electronics Printed in Korea. KA7500B Industrial CD-ROM(Edition 3.0) This Data Sheet is subject to change without notice. Page : 3 ( KA7500B ) (C) 1996 Samsung Electronics Printed in Korea. KA7500B Industrial CD-ROM(Edition 3.0) This Data Sheet is subject to change without notice. Page : 4 ( KA7500B ) (C) 1996 Samsung Electronics Printed in Korea. KA7500B Industrial CD-ROM(Edition 3.0) This Data Sheet is subject to change without notice. Page : 5 ( KA7500B ) (C) 1996 Samsung Electronics [ ... ]

KA7500B PDF Datasheet Download