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

8 Conclusion

The BQ35100 configured in EOS mode can reliably alert before a remote or deployed long term system will die due to the battery. The alert is the primary function of EOS mode but some SOH data can be read from the gauge, the accuracy of the SOH% in EOS mode is a case by case basis.

The best use cases for this gauge are applications where the gauge can be woken up before the current pulse to learn the resistance, or a learning pulse can be implemented with external resistor and MCU for the gauge to learn resistance. Time considerations for testing should be accounted for during the evaluation period of this part in order to best configure the gauge for the end equipment.