6 Summary

The UCC21520 is a dual-channel gate driver with reinforced isolation of 5.7 kV_RMS along with a common-mode transient immunity (CMTI) greater than 100 V/ns. This application report discussed the UCC21520’s best-in-class propagation delay of 19 ns and the best channel-to-channel delay matching of less than 5 ns which enables high-switching frequency, high-power density and efficiency. Importantly, design considerations and benefits with the UCC21520’s fast dynamic response and two output channels in parallel are addressed in detail with its wide application in a great variety of power electronics topologies.