GaN devices have an ultra low turn-on threshold and to properly drive them it is important that there is a negative gate voltage provided when the HEMT is intended to turn-off. In that way, it is fast turned off. Secondly, this gate drivers can hold the gate voltage firmly at zero when the HEMT is intendeded to turned-off. No spurios turn-on of the HEMTs.
Galvanic isolated Gate Drivers with Protection Features
EiceDRIVER™ galvanically isolated gate drivers use the unique coreless transformer (CT) technology to provide signal transfer across the galvanic isolation. We offer short circuit protection, 100 kV/μs CMTI, active Miller clamp, soft turn off and other features, especially for driving SiC MOSFETs and GaN HEMTs.