SLVAFS9 August   2024 DRV8316 , DRV8317

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Power Loss and Performance Expectations
  6. 3Lab Data and Analysis
    1. 3.1 Current Output, Rds(on), and PWM Frequency
    2. 3.2 Slew Rate and Device
    3. 3.3 Temporal Thermal Analysis
    4. 3.4 PCB Design
  7. 4Thermal Design Recommendations
  8. 5Summary
  9. 6References

5 Summary

Integrated FET drivers provide significant features and power capabilities within a small form factor, and the drivers can reduce PCB cost and complexity. At the same time, the integrated nature of the devices requires designers to consider the thermal performance of the system so that the drivers can provide more efficient performance. This application note explained various sources of power loss for integrated FET motor drivers, presented data captured in lab experiments, and provided recommendations based on that data. For more information on Texas Instruments integrated FET driver portfolio, refer to Brushless DC (BLDC) motor drivers. More content on thermal performance is available through videos and other design guides on ti.com.