Part Number:BQ24105
Dear team,
This is a customer's question.
Their battery board is the bq24105 charger and bq20z75 solution, the system controls the charging by controlling the bq24105's enable pin.
1. Could you help to see if there is any problem in this judgement process?
The system software has the judgment process of the charger fault, that is, after the charge is enabled, if the dsg and chg are set in the bq20z75 chip FET status register (0x46), and at the same time the dsg=0 in the battery status register (0x16), then the charger is considered normal; but if the dsg is set, the charger is considered faulty.
2. Now it is found that at some time, dsg will be set.
At this time, the TCA and FC flags are not set, but the dsg bit is set. Obviously, the charger is not really faulty. But what's the reason? Under what circumstances will it be?
Looking forward to your reply.
Thanks!
Sherry