IR2157 ic equivalent, fully integrated ballast control ic.
* Programmable preheat time & frequency
* Programmable ignition ramp
* Protection from failure-to-strike
* Lamp filament sensing & protection
* Protec.
* Thermal overload protection
* Programmable deadtime
* Integrated 600V level-shifting gate driver
* Internal 15.6V zener clamp diode on VCC
* True micropower startup (150uA)
* Latch immunity protection on all leads
* ESD.
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