IR21593 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 adapt non-dimming ballasts for dimming.
IR21593 Key Features
- 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
- Ballast control and half-bridge driver in one IC
- Transformer-less lamp power sensing
- Closed-loop lamp power control