MCUs for two-motor electric vehicle traction inverters







NXP is aiming at electric vehicles traction inverters for up to two motors with its S32K39 microcontrollers. The MCUs support IGBT as well as SiC and GaN, according to the company. It has enough compute power to support six-phase or two three-phase motors controlled by dual 200 kHz control loops, while hosting AI, machine learning or other monitoring applications. It supports remote smart actuation applications using Time-Sensitive Networking Ethernet for zonal vehicle architectures. S32K39 also provides flexibility to control up to quad traction inverters when coupled with the NXP S32E real-time processor, and can implement advanced traction capabilities for four-wheel-drive EVs in this configuration. This is the highest performance S32K family member, said NXP, with four 320MHz Arm Cortex-M7 cores configured as a lock-step pair and two split-lock cores. Up to 6Mbyte of flash and 800kbyte of ram is available.