Si823Hx Robust Isolated Gate Drivers for MOSFETs and IGBTs

Skyworks Solutions' Si823Hx ISOdrivers are ideal for driving power MOSFETs and IGBTs used in a wide variety of switched-power and motor control applications. Each device combines two isolated gate drivers into a single package for high-power applications. The Si823Hx includes devices with single- or dual-control inputs with independent or high-side/low-side outputs. These drivers can operate with a 3.0 V to 5.5 V input V_DD and a maximum drive supply voltage of 30 V.

These drivers utilize Skyworks Solutions' proprietary silicon isolation technology, supporting up to 5 kV_RMS for 1-minute isolation voltage. This technology enables high CMTI (125 kV/µs), lower propagation delays and skew, little variation with temperature and age, and low part-to-part matching. This driver family also offers some unique features such as overtemperature protection, output undervoltage lockout (UVLO) fault detection, dead-time programmability, and fail-safe drivers with default low, in case of loss of input-side power. The Si823Hx family offers longer service life and dramatically higher reliability compared to opto-coupled gate drivers.