BQ25770G: Cannot start charging

David zhou

Part Number: BQ25770G
Other Parts Discussed in Thread: BQ25770, TIGER,

HI TI TEAM

I'm currently charging four batteries using the BQ25770. According to the register configuration in the picture, I found that the charging cannot be normal. Is there anything I didn't pay attention to here?

8 months ago

0 Tiger Zhou 8 months ago

TI__Mastermind 37375 points

Hi, David,

I think your charge voltage() is set to 4.2V, which is too low. We need to set to 16.8V if 4S.

Regards,

Tiger

0 David zhou 8 months ago in reply to Tiger Zhou

Prodigy 10 points

charge voltage() write 0X41A0.

No matter what value is written, it cannot be charged, and the corresponding charging voltage cannot be measured at the battery end.

0 Tiger Zhou 8 months ago in reply to David zhou

TI__Mastermind 37375 points

Suggest ordering a BQ25770GEVM and try it with user guide.

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BQ25770G: Cannot start charging