The L6386 from STMicroelectronics is an advanced high-voltage gate driver specifically designed to drive both the high-side and low-side N-channel MOSFETs in a half-bridge configuration. With its integrated bootstrap diode and high-voltage capability, this driver is well-suited for a wide range of applications, including motor control, switched-mode power supplies, and power inverter systems.
The L6386 operates over a wide supply voltage range from 8V to 15V, providing the flexibility needed for various system designs. It boasts an impressive output current capability of up to 650mA for the high-side and 650mA for the low-side, ensuring efficient switching of connected MOSFETs. The device features undervoltage lockout protection, which prevents operation when the supply voltage is too low, thus safeguarding the MOSFETs from insufficient gate voltage.
One of the key advantages of the L6386 is its integrated bootstrap diode. This feature simplifies the design of the bootstrap circuitry required for high-side gate drive, reducing external component count and overall system complexity. The high-voltage rail up to 600V allows the L6386 to be used in high-voltage applications, expanding its usability across various industrial scenarios.
The L6386 also offers robust protection features, including a dedicated shutdown pin that provides immediate turn-off of both gate drivers to ensure the system's safety during fault conditions. Matched propagation delays between high-side and low-side outputs contribute to the reduction of dead-time, thereby increasing efficiency and reducing switching losses.
With its compact SO-8 package, the L6386 is designed for space-constrained applications, providing a powerful and efficient gate driving solution without compromising on performance. Its high level of integration, coupled with STMicroelectronics' proven track record for reliability, makes the L6386 an excellent choice for designers looking to improve the performance and robustness of their power conversion systems.
