IR21593S
Features
DIMMING BALLAST CONTROL IC
- 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
Parameter Deadtime Frequency Range
IR21592 1.8us See
Graph 11
IR21593 1.0us See Graph 12
Description
Packages
Description
: The IR21592/IR21593 are plete 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...
