Microcontroller Addresses Advanced EV Motor Management

Nov. 18, 2022
NXP's S32K39 serves next-gen EV traction-inverter control needs while supporting remote smart actuation applications using time-sensitive networking Ethernet for new zonal vehicle architectures.

Check out more of coverage of Electronica 2022.

At the recent electronica trade event in Munich, NXP Semiconductors unveiled its S32K39 series of automotive MCUs, which are optimized for advanced electric-vehicle (EV) system control applications. Integrating networking, security, and functional-safety capabilities, the MCUs leverage NXP’s battery-management system (BMS) and EV power inverter solutions, and are optimized to intelligently and precisely control traction inverters. The MCUs support both silicon IGBTs as well as silicon-carbide (SiC) and gallium-nitride (GaN) technologies.

Offering dual 200-kHz control loops, the MCUs also can control six-phase motors. A safe ASIL D software resolver and integrated sine-wave generation plus sigma delta converters eliminate external components. Furthermore, the MCUs support hardware isolation, time-sensitive networking (TSN), and advanced cryptography for next-generation software-defined EVs and zonal vehicle architectures.

Features include:

 Four Arm Cortex-M7 cores at 320 MHz configured as a lockstep pair and two split-lock cores
• Up to 6 MB of flash memory with 800 kB of SRAM
• Two motor-control co-processors
• Safe ASIL D software resolver
• Integrated DSP
• Multichannel analog support
• Six CAN FD interfaces, TSN Ethernet, and programmable I/O
• Hardware security engine (HSE)
• Available in two packages: 176LPQFP-EP and 289MAPBGA


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