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Original question:

[FAQ] How do battery chargers BQ24100, BQ24170, and BQ24610 take the battery temperature in account to control the charging...

BQ24170: BQ24170

asher AA
Prodigy 70 points
Part Number: BQ24170

Hi

The TS pin is OF  BQ24170 is connected to resistors including a NTC 10kohm RESISTOR  / THERMISTOR in order to prevent high temperature of the battery.

Is it right to attach it to the battery? If it is attached to the BQ24170 it controls is temperature of the component and not the battery.

Thanks

  

  • 0
    TI__Genius 17882 points

    Hi Asher, 

    Thank you for reaching out!

    The controller continuously monitors battery temperature by measuring the voltage between the TS pin and AGND. A negative temperature coefficient thermistor (NTC) and an external voltage divider typically develop this voltage. The NTC thermistor should be attached to the battery pack.

    See example below: 

    Best Regards, 

    Aya Khedr 

  • 0 in reply to Aya Khedr
    Prodigy 70 points

    Hi Aya

    Thanks for your fast and helpful answer.

    Asher