IR21592S Datasheet PDF - International Rectifier

●Description

●The IR21592/IR21593 are complete dimming ballast controllers and 600V half-bridge drivers all in one IC. The architecture includes phase control for transformer-less lamp power sensing and regulation which minimizes changes needed to adapt non-dimming ballasts for dimming.

●Features

●•Ballast control and half-bridge driver in one IC

●•Transformer-less lamp power sensing

●•Closed-loop lamp power control

●•Closed-loop preheat current control

●•Programmable preheat time

●•Programmable preheat current

●•Lamp ignition detection

●•Programmable ignition-to-dim time

●•0.5 to 5VDC dimming control input

●•Min and max lamp power adjustments

●•Programmable minimum frequency

●•Internal current sense blanking

●•Full lamp fault protection

●•Brown-out protection

●•Automatic restart

●•Micro-power startup

●•Zener clamped Vcc

●•Over-temperature protection

●•16-pin DIP and SOIC package types