NCV51705 High-Speed Low-Side SiC MOSFET Driver onsemi NCV51705 High-Speed Low-Side SiC MOSFET Driver is designed to provide high-peak current during turn-on and turn-off, minimizing switching losses. For improved reliability, dV/dt immunity, and even faster turn-off, the NCV51705 can utilize its onboard charge pump to generate a user-selectable negative voltage rail. For isolated applications, the NCV51705 also provides an externally accessible 5V rail to power the secondary side of digital or high-speed opto isolators. The NCV51705 offers important protection functions such as under-voltage lockout monitoring for the bias power.