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BQ25150: Current ADC data

user4819317
Prodigy 160 points
Part Number: BQ25150


Greetings，

Reading the BQ25150 Datasheet, the current ADC only  support charging current, not support discharging current detect?

and  the datasheet says BQ2510 has integrated low IQ gauge, how can customer read battery capacity information?

Thanks,

 

  • 0
    TI__Mastermind 19195 points

    Hello,


    BQ25150 does not support direct measurement of discharging current. However, with use of ADCIN & BAT pin, a sense resistor can be used to measure charging and discharging current. Voltage divider to ADCIN would need to be used because max voltage on pin is 1.2V.

    Battery capacity can be estimated using a voltage based gauging scheme with look up table. Battery first needs to be characterized by an accurate gauge. We are currently investigating this and hope to have more details released in future.

    Best,

  • 0 in reply to Nick Brylski
    TI__Mastermind 19195 points

    Hi there,

    I haven’t heard back from you, I’m assuming you were able to resolve your issue. If not, just post a reply below or create a new thread if the thread has locked due to time-out.

    Regards,