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BQ2980: kindly review the schematic

zunuran nasrullah
Prodigy 120 points
Part Number: BQ2980
Other Parts Discussed in Thread: TPS2121

Tool/software:

Kindly review the schematic of BQ2980 along with fuel guage IC BQ27Z561fuel guage IC and TPS2121 power path IC. I am bit confused regarding GND connectionSCH_Schematic1_3-PowerSection_2024-09-18.pdf of Solar input, Battery input and system ground. Kindly check it and let me know if everything looks fine or need improvement.

I did not open separate threads because these ICs are linked together so thats why it would be good if everything can be reviewed together. Thanks

  • 0
    TI__Expert 4245 points

    Hello Zunuran,

    An engineer will get to you tomorrow regarding this. Thank you for your patience.

    Best Regards,
    Alexis

  • 0 in reply to Alexis_H
    TI__Mastermind 19210 points

    Hi Zunuran,

    I reviewed the 2980 and it looks good to me. I recommend opening new thread for each of the other devices that you want reviewed so that the respective teams can review them.

    Regarding the GND connections, ideally everything aside from the protector and the gauge is on the PACK- connection, that way all of the system current is passing through the sense resistor.

    Regards,

    Max Verboncoeur