SPRAD58B September   2022  – February 2026 AM2631 , AM2631-Q1 , AM2632 , AM2632-Q1 , AM2634 , AM2634-Q1 , UCC14130-Q1 , UCC14131-Q1 , UCC14140-Q1 , UCC14141-Q1 , UCC14240-Q1 , UCC14241-Q1 , UCC14340-Q1 , UCC14341-Q1 , UCC15240-Q1 , UCC15241-Q1 , UCC5870-Q1 , UCC5871-Q1 , UCC5880-Q1 , UCC5881-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1 Introduction
  5. 2 Architectures and Trends
    1. 2.1 Two-Level and Three-Level Inverters
    2. 2.2 E-Axles and X-in-1 Architecture
    3. 2.3 Other Trends in Traction Inverter Design
  6. 3 Key Technology to Enable Traction Inverters
  7. 4 Microcontroller and Power Management IC
    1. 4.1 C2000™ Family
    2. 4.2 Power Management IC
  8. 5 Isolated Gate Drivers
  9. 6 Low Voltage Isolated Bias Supply
  10. 7 High Voltage Isolated Bias Supply
  11. 8 DC Link Active Discharge
  12. 9 Motor Position Sensing
  13. 10Isolated Voltage and Current Sensing
    1. 10.1 Isolated Current Sensing
    2. 10.2 Isolated Voltage Sensing
  14. 11System Engineering and Reference Designs
  15. 12Conclusion
  16. 13References

12 Conclusion

Automotive traction inverter technology is trending toward 800V, high-power density (toward larger than 50kW/L), high efficiency (> 99%), and high safety (ASIL D) requirements. In all relevant areas, TI's technology provides a technological edge with new devices and significant improvements.

In the C2000™ MCU family, TI’s new generation of C29 cores enable super-fast relative performance execution across the competition (specifically the F29H58x family of devices). The new generation of TPS653860-Q1 and TPS653861-Q1 PMICs enable adherence to full system safety requirements, with all the necessary control mechanisms, while simultaneously simplifying design efforts by cross-functioning with MCUs of competitors.

The new generation of UCC5881-Q1 gate drivers enable increased motor control efficiency, with adjustable strength gate drives and system efficiency improvements of >2%, along with savings in space and potentially costs. The new UCC34141-Q1 LV isolated bias module comes with an integrated transformer for massive reductions in the size of the system by up to 77%.

A completely new method of current sensing in the TMCS2100-Q1 device eliminates the need for heavy and expensive C-core structures, elevating the traction inverter design. The device integrates resistive dividers or a DC-DC supply into the isolated voltage sense and shrinks the size of the BOM significantly. TI also enables inductive motor position sensing with the LDC5072-Q1 AFE device to offer an alternative setup of the resolver, one without an exciter, simplifying the sensing setup from the perspective of the designer.