Si826x range of Isolated Gate Drivers, Silicon Laboratories Silicon Labs Si826x range of ISOdrivers are pin-compatible drop-in upgrades for popular gate drive optocouplers. These devices are ideal for driving power MOSFETs and IGBTs used in a wide variety of inverter and motor control applications. The Si826x isolated gate drivers use Silicon Labs proprietary silicon isolation technology which supports up to 5.0 kV RMS. This technology enables higher-performance, reduced variation with temperature and age, tighter part-to-part matching and superior common-mode rejection compared to opto-drivers.