L6567 is a high voltage driver designed to drive CFL and small TL lamps with minimum part count. It provides all the necessary functions for proper pre-heat, ignition and steady state operation of the lamp: variable frequency oscillator, settable preheating and ignition time, capacitive mode protection, lamp power independent from mains voltage variation.
The L6567 is a monolithic high‑voltage driver IC designed to control compact fluorescent (CFL) and small TL lamps with a minimal part count. It integrates a variable‑frequency oscillator, pre‑heat and ignition timing, and driver current capability, and it drives two external MOSFETs in a half‑bridge configuration.
Key specifications include a floating supply voltage up to 570 V, a GND‑referenced supply up to 18 V, driver currents of 30 mA source and 70 mA sink, and programmable pre‑heat and ignition times. The device features absolute‑maximum ratings, detailed electrical characteristics, and timing parameters such as on‑delay and output resistance for both high‑side and low‑side drivers.
| Floating Supply Voltage | up to 570 V |
|---|---|
| GND‑referenced Supply Voltage | up to 18 V |
| Driver Current Capability | 30 mA source, 70 mA sink |
| Storage Temperature Range | -40 °C to 150 °C |
| G1 On‑Delay (typical) | 1.4 µs |
The device can operate with a floating supply voltage up to 570 V.
It can source up to 30 mA and sink up to 70 mA.
The typical on‑delay for G1 is about 1.4 µs.
The L6567 is rated for storage temperatures from –40 °C to 150 °C.