This part is a kind of semiconductor called BD9893F.

Function of this product has DC-AC Inverter Control IC.

Manufacturers : Rohm

Image and pinout :

Some of the text within the PDF file :

1/4 STRUCTURE NAME OF PRODUCT TYPE FUNCTION Silicon Monolithic Integrated Circuit DC-AC Inverter Control IC ＢＤ９８９３Ｆ １．1ch control with Push-Pull ２．Lamp current and voltage sense feed back control ３．Sequencing easily achieved with Soft Start Control ４．Short circuit protection with Timer Latch ５．Under Voltage Lock Out ６．Short circuit protection with over voltage ７．Mode-selectable the operating or stand-by mode by stand-by pin ８．BURST mode controlled by PWM and DC input ○Absolute Maximum Ratings（Ta = 25℃） Parameter Supply Voltage Operating Temperature Range Storage Temperature Range Power Dissipation Maximum Junction Temperature * Symbol VCC Topr Tstg Pd Tjmax Limits 15 -35～+95 -55～+125 562* +150 Unit V ℃ ℃ mW ℃ Pd derate [ ... ]

BD9893F PDF Datasheet Download