SLUAAL7 September   2022 BQ35100

 

  1.   Abstract
  2.   Trademarks
  3. 1Introduction
  4. 2EVM and System Setup
  5. 3Enabling EOS Mode
    1. 3.1 Steps for Enabling EOS Mode
  6. 4I2C Communication Between the Microcontroller and the BQ35100 EVM
  7. 5Testing Procedure
  8. 6EOS Data Example
  9. 7Final Configuration of the BQ35100 Data
  10. 8Conclusion
  11. 9References

1 Introduction

It is difficult to gauge the remaining capacity of a lithium thionyl chloride battery because of the extremely flat open circuit voltage. However, the BQ35100 configured in EOS mode solves this challenge by using impedance data measured during short current pulses. This test shows the data that the BQ35100 can collect, and how that data is used to determine when a lithium thionyl chloride battery is nearing the end of life.