The L6384 from STMicroelectronics is a high-voltage, high-speed power driver specifically designed to drive half-bridge circuits in motor control applications and switching power supplies. This advanced driver integrates a half-bridge gate driver with a high-voltage rail up to 600V, making it an ideal choice for controlling power MOSFETs or IGBTs.
Featuring an undervoltage lockout for both the high-side and low-side sections, the L6384 ensures that the device operates reliably and safely by preventing the gates from being driven until the supply voltage reaches an adequate level. Additionally, the driver is equipped with a dV/dt immunity of 50 V/ns in full temperature range, which provides robustness against the harsh conditions typically found in industrial environments.
The L6384 boasts a high-side floating supply voltage from 7.5V to 600V and a low-side and logic fixed supply voltage from 7.5V to 18V. Its high-side floating section is designed to stand a voltage rail up to 600V. This feature, along with the operational high-side output voltage up to 600V, makes it highly versatile for a wide range of applications.
The driver's outputs are capable of sourcing and sinking high currents, with 400mA source and 650mA sink current capabilities. This allows for rapid charging and discharging of the gate capacitance, resulting in quick and efficient switching actions. Moreover, the L6384 includes a matched delay between low-side and high-side sections, which is crucial in preventing shoot-through in the half-bridge configuration.
The L6384 is also designed with user convenience in mind, featuring a logic level compatible with 3.3V/5V CMOS and TTL, thus simplifying its interface with a microcontroller or any other logic controller. With its combination of high-voltage capability, robustness, and user-friendly interface, the L6384 is a powerful solution for designers looking to implement efficient and reliable high-voltage driving circuits.
