The L6569 and L6569A are high‑voltage half‑bridge drivers with an internal bootstrap structure and programmable oscillator. They support up to 600 V rail voltage, provide internal zener clamping, and feature low‑start‑up current and dV/dt immunity of up to +50 V/ns.
The document lists absolute maximum ratings, recommended operating conditions, pin connections and functions, electrical characteristics, bootstrap operation, a demo board for lamp‑ballast evaluation, and mechanical dimensions. Safety and disclaimer information are also included.
| Supply Voltage (Vs) | 10 V – 30 V |
|---|---|
| Floating Supply Voltage (VBOOT) | Up to 500 V |
| Oscillation Frequency | 200 kHz (typ.) |
| Source Current (high/low side) | 170 mA (typ.) |
| Sink Current (high/low side) | 270 mA (typ.) |
| dV/dt Immunity | +50 V/ns |
| Thermal Resistance (RθJA) | 100 °C/W (max) |
The device is rated for a floating supply (VBOOT) of up to 500 V.
The oscillator frequency is programmed by selecting external resistor (RF) and capacitor (CF) values.
Each driver output can source about 170 mA and sink about 270 mA.
Yes, the device uses an internal bootstrap structure that eliminates the need for an external diode.