IR2157 Datasheet (International Rectifier) - FULLY INTEGRATED BALLAST CONTROL IC

IR2157, FULLY INTEGRATED BALLAST CONTROL IC

* 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 protection on all lea

IR2157 Features

* Programmable preheat time & frequency

* Programmable ignition ramp

* Protection from failure-to-strike

* Lamp filament sensing & protection

* Protection from operation below resonance

* Protection from low-line condition & automatic restart (mimics a