SLUAB10A June   2025  – August 2025 BQ76972

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2BQ769x2 Coulomb Counter Current Error Calculation
  6. 3Sense Resistor Design Considerations
  7. 4Current Sensing Circuit Diagnostic
  8. 5Accumulated Charge Integration of Coulomb Counter
  9. 6System Implementation
  10. 7Summary
  11. 8References
  12. 9Revision History

7 Summary

This article provides the design considerations of BQ769x2 current sensing. The current accuracy can be calculated before starting the design and improved following the recommendations in this article. If the diagnostic is required for current sensing circuit, a diagnostic proposal is also recommended. This article also shows the example to read the accumulated charge integration that can be used for SoC calculation or other decision purposes.