The high-performance S32K39 microcontrollers are optimized for intelligent, high-precision control of traction inverters that convert DC power from the EV battery into AC power to drive modern traction motors. These microcontrollers are compatible with traditional IGBTs (insulated-gate bipolar transistors) as well as the latest silicon carbide (SiC) and gallium nitride (GaN) technologies. Combined with dual 200 kHz control loops for improved energy efficiency, they enable smaller and lighter inverters. They can also control six-phase motors with higher power density and fault tolerance. A secure ASIL D software resolver, along with integrated sine wave generation and sigma-delta converters, eliminates the need for external components. The S32K39 series also provides the flexibility to control up to four traction inverters when paired with NXP's S32E real-time processor and can implement advanced traction capabilities for all-wheel-drive EVs in this configuration.
About the S32K39 Series
● The highest-performing member of the S32K family with four 320 MHz Arm® Cortex®-M7 cores configured with one pair in lockstep and two cores in split-lock.
● Up to 6 MB of flash memory and 800 KB of SRAM
● Two NanoEdge™ high-resolution motor control and PWM (pulse-width modulation) coprocessors for increased performance and precision control
● Secure ASIL D software resolver eliminates external components and reduces cost
● Integrated DSP for flexible digital filtering and machine learning (ML) algorithms
● Supports multi-channel analog electronics with SAR and sigma-delta A/D converters, comparators, and sine wave generators for resolver excitation
● Six CAN FD interfaces, Ethernet TSN, and numerous advanced programmable I/Os
● Hardware security engine (HSE) for secure boot, security services, secure over-the-air (OTA) updates based on public key infrastructure (PKI), and key management
● S32K37 versions (without the two motor control processors) also available
● Developed with ISO/SAE 21434 certified cybersecurity and ISO 26262 functional safety processes
● Supplied in two packages: 176LPQFP-EP and 289MAPBGA
The S32K39 microcontrollers can be combined with the FS26 safety system-based chip (SBC) and the advanced GD3162 high-voltage isolated gate driver from NXP with adjustable dynamic current control for a safe inverter control system. Both offer the highest level of functional safety (ASIL D) for traction inverter development.
