Texas Instruments' UCC27611 is a single-channel, high-speed, gate driver optimized for 5 V drive, specifically addressing enhancement-mode GaN FETs. The drive voltage V_REF is precisely controlled by internal linear regulator to 5 V. The UCC27611 offers asymmetrical rail-to-rail peak current drive capability with 4 A source and 6 A sink. Split output configuration allows individual turn-on and off time optimization depending on FET.

Package and pinout with minimum parasitic inductances reduce the rise and fall time and limit the ringing. Additionally, the short propagation delay with minimized tolerances and variations allows efficient operation at high frequencies. The 2 Ω and 0.3 Ω pull-up and pull-down resistance boosts immunity to hard switching with high slew rate dV and dt.