View ir2156 datasheet:

Preliminary Data Sheet No. PD60182-E ( ) IR2156 S BALLAST CONTROL IC Features • Programmable dead time • Ballast control and half-bridge driver in one IC • DC bus under-voltage reset • Programmable preheat frequency • Shutdown pin with hysteresis • Programmable preheat time • Internal 15.6V zener clamp diode on Vcc • Internal ignition ramp • Micropower startup (150µA) • Programmable over-current threshold • Latch immunity and ESD protection • Programmable run frequency Packages Description The IR2156 incorporates a high voltage half-bridge gate driver with a programmable oscillator and state diagram to form a complete ballast control IC. The IR2156 features include programmable preheat and run frequencies, programmable preheat time, program- mable dead-time, and pro