When driving GaN power transistors, the gate design of the switch needs to be taken into consideration. Infineon is the only company offering both common enhancement-mode (normally-off) types available in the market: the gate injection transistor (GIT) with an ohmic-gate contact, and the Schottky gate transistor (SG). With proper layout, the same PCB design can drive both switch types.

For a deeper understanding of how to drive SG and GIT GaN transistors, and to get the best performance out of your system design, our experts have prepared a white paper for you, which covers:

• The similarities and differences of standard gate drive concepts
• Various driving solutions and their pros and cons
• Design guidelines for RC interface
• Universal gate driving circuit for GIT and SG GaN HEMTs based on RC interface