SDAA080 September   2025 TPS2HCS08-Q1 , TPS2HCS10-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2High Side Switch Current Sense and Open Load Detection
    1. 2.1 Current Sense in High-side Switches
    2. 2.2 Open-Load Detection in High-side Switches
  6. 3Smart eFuse Current Sense and Open Load Detection
    1. 3.1 Open Load Detection in eFuses
    2. 3.2 Open-Load Current Sense Scaling
    3. 3.3 ADC Input Scaling
    4. 3.4 OL_ON and ADC Input Scaling Programming Procedure
  7. 4Normal vs. Open-Load Scaling Test Results
  8. 5Design Considerations
  9. 6Summary
  10. 7References

6 Summary

As automobile architectures become increasingly complex, the needs for verbose diagnostics and protections likewise grows, calling for more real-time feedback about system statuses and more detailed levels of control and abstraction. TI Smart eFuses address this need by introducing future-proof diagnostics including precise open load detection, which utilizes a high-accuracy, programmable, scalable current sense architecture to aid the system in detecting various downstream load states and fault modes.