TIDUF63 December 2023
For low-frequency commutation switches, super-junction Si MOSFETs with 22-mΩ RDS(on) were selected. An isolated dual-channel gate driver (UCC21540DW) was selected to drive these MOSFETs. The UCC21540DW device provides reinforced isolation between the MCU and the power MOSFETs. In this design, a dead time of 100 ns was programmed with 10 kΩ (R87).