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

Abstract

High-current sensing accuracy is essential in battery management system (BMS) which can benefit the accuracy of battery state of charge (SoC) and improve the reliability of entire system. This article shares the design considerations of current sensing and shows how to realize high-precision and high-reliable current measurement with a battery monitor device BQ76972.