L6571A/B is a high voltage half bridge driver from STMicroelectronics. It can drive N-channel power MOSFETs and IGBTs. The oscillator is built-in and the frequency can be programmed using external resistor and capacitor. The internal logic assures a minimum dead time to avoid cross-conduction of the power devices.
The L6571A and L6571B are high voltage half bridge drivers with a built-in oscillator, designed to drive external n-channel power MOSFETs and IGBTs. The device features a programmable oscillator frequency set by an external resistor and capacitor, ensuring a minimum dead time to prevent cross-conduction of the power devices.
| Supply Current | 25 mA |
|---|---|
| Oscillator Resistor Voltage | 18 V |
| dV/dt Immunity | + 50 V/ns |
| Start Up Current | 150 pA |
| Quiescent Current | < 2mA |
| Internal Dead Time (L6571A) | 1.65 us |
The frequency of the internal oscillator can be programmed using an external resistor and capacitor.
The maximum floating supply voltage is 600V.
The minimum internal dead time for the L6571A is 0.85 microseconds.