SLUAAP1 may   2023 BQ25120A , BQ25121A , BQ25122 , BQ25123 , BQ25125 , BQ25150 , BQ25155 , BQ25157 , BQ25180

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1What is 0-V Charge Inhibition?
  5. 2Implement Charge Inhibition With a Charger
    1. 2.1 Measuring Battery Voltage using Battery Undervoltage Lockout
    2. 2.2 Executing a Battery Short Test
    3. 2.3 Example Implementation
  6. 3Summary
  7. 4References

3 Summary

Although it is not a direct replacement for a Protection IC, battery charges can be used to implement protections against charging internally-shorted batteries. The BUVLO feature can be used as an improvised voltage monitor, if other monitors are not available, to identify low voltages. Using this voltage monitor, a small current can be used to test for battery shorts. A host processor can implement this logic to add a layer of redundancy to a charging system's protection measures.