L6585DE Combo IC for PFC and Ballast Control
The L6585DE embeds a high performance PFC controller, a ballast controller and all the relevant drivers necessary to build an electronic ballast.
The PFC section achieves current mode control operating in transition mode, offering a highly linear multiplier including a THD optimizer that allows for an extremely low THD, even over a large range of input voltages and loading conditions.
The PFC output voltage is controlled by means of a voltage-mode error amplifier and a precise internal voltage reference.
The ballast controller offers the designer a very precise oscillator, a logic that manages all the operating steps and a full set of protection features:
- Programmable end-of-life detection, compliant with both lamp-to-ground and capacitor to- ground configurations
- Over-current protection with either current limiting or choke saturation protection
- Hard switching events detection
High current capability drivers for both the PFC (300 mA source and 600 mA sink) and the half-bridge (290 mA source and 480 mA sink) also allow ballast designs for very high output power (up to 160 W).
Features:
- PFC section
- Transition Mode PFC with Over-current Protection
- Over-voltage Protection
- Feedback Disconnection
- Under-voltage Lockout
- PFC Choke Saturation Detection
- THD Optimizer
- Half-bridge Section
- Preheating and Ignition Phases Independently Programmable
- 3 % Oscillator Precision
- 1.2 μs Dead Time
- Programmable and Precise End-of-life Protection Compliant with all ballast Configurations
- Smart Hard Switching Detection
- Fast Ignition Voltage Control with Choke Saturation Detection
- Half-bridge Over-current Control
Applications:
- TM PFC Operation
- Leading Edge Blanking
- THD Optimizer Feature
- Over-voltage Protection
- Disabling the L6585DE
- Feedback Disconnection Protection
- PFC Over-current Protection
Related Product Information:
| Part No | Description |
| L6585DE | L6585DE Combo IC for PFC and ballast control - SOIC-20 |