Temperature sensing solution designed for traction inverters

The Texas Instruments TIDA-00794 reference design is a temp sensing solution for IGBT thermal protection in HEV/EV traction inverter system. It monitors the IGBT temperature via the NTC thermistor integrated inside the IGBT module. It gives thermal shut down to the IGBT gate drivers once the NTC thermistor temperature rises above the programmed threshold. The design includes the IGBT isolated gate drivers, isolation to the high voltage, NTC signal conditioning, Load resistor, including I2C interface to the MSP430, which enables the design system to run independently under high power ratings. It is designed for traction inverters with rated current up to 300A and DC bus voltage up to 400V. The Push-Pull current boost at the Gate driver enables 10A source and 10A sink peak gate currents. It offers one multi-channel ADC and one isolation IC for conditioning multi NTCs in the inverter system.