The UCC218915-Q1 is an advanced isolated pre-driver with state-of-art protection and sensing features for SiC MOSFETs and IGBTs. The device has dual 2.8A outputs for directly driving an external buffer NMOS/PMOS pair, allowing the device to be used with a wide range of power devices. The input side is isolated from the output side with a reinforced isolation barrier based on SiO₂ isolation technology, supporting up to 1.06kV_RMS working voltage and 8kV_PK surge immunity with longer than 40-years isolation barrier life. The isolation technology supports 200V/ns minimum CMTI to guarantee the reliability of the system with fast switching speeds. The small propagation delay and part-to-part skew can minimize the deadtime setting, so the conduction loss can be reduced.

The device includes extensive protection and monitoring features to increase the reliability and robustness of the SiC MOSFET and IGBT based systems. Primary and secondary-side supply UVLOs protect the system from operating when the supply voltage levels are too low. The active Miller clamp feature prevents the false turn on causing by Miller capacitance during fast switching. The device has state-of-art DESAT detection time, as well as fault reporting to the low voltage side DSP/MCU. Soft shut down is triggered when the DESAT fault is detected, minimizing the short circuit energy while reducing the overshoot voltage on the switches. The device also has an active-short circuit input on the high-voltage side to force the power switch on during certain fault conditions.