This post explains for the Inverter Control IC.
The Part Number is BD9893F.
The function of this semiconductor is DC-AC Inverter Control IC.
Preview images :
This is DC-AC Inverter Control IC.
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