L6585D Combo IC is a PFC and electronic ballast control IC with the following features: 1. Pre-heating and ignition stages can be independently programmed; 2. Ignition voltage can be controlled; 3. Over-current protection PFC in transition mode; 4. Programmable and precise End-of-life protection compliant with all ballast configurations; 5. Auto-adjusting half-bridge over-current control; 6. Automatic re-lamp; 7. 3% oscillator precision; 8. 1.2µs dead time; 9. PFC over-voltage protection and feedback disconnection; 10. Under voltage lock-out.