JAJU732C June 2019 – July 2022
The UCC21530 is used for driving the SiC MOSFETs of the power stage. The device is an isolated dual-channel gate driver with 4-A source and 6-A sink peak current. The UCC21530 is designed to drive IGBTs and SiC MOSFETs up to 5 MHz with best-in-class propagation delay of 19 ns and pulse-width distortion of 5 ns. The input side is isolated from the two output drivers by a 5.7-kVRMS reinforced isolation barrier, with a minimum of 100-V/ns common-mode transient immunity (CMTI). Internal functional isolation between the two secondary-side drivers allows a working voltage of up to 1850 V. The device accepts VDD supply voltages up to 25 V. A wide input VCCI range from 3 V to 18 V makes the driver suitable for interfacing with both analog and digital controllers.
For more details on this device, see the UCC21530 product page.