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BQ27531-G1: BQ27531-G1

user4621694
Prodigy 140 points
Part Number: BQ27531-G1
Other Parts Discussed in Thread: BQ24192

Hello, in application of BQ27531 + BQ24192, NTC pin of battery is connectted  to temperature detect pin of BQ27531.

BQ27531 demand negative temperature coefficient (NTC) thermistor with R25 = 10.0 kΩ ±1%, B25/85 = 3435 kΩ ± 1%.

Is there any method to change the B value setting of BQ27531 application if a 103AT NTC with different B value is used ?

Or the temperature coefficient of NTC must not be different from recommended in the BQ27531 datasheet ?

  • 0
    TI__Guru* 76230 points
    it is recommended to stick with the recommended thermistor. It is however possible to use a different themistor, but that requires making changes to the data flash and you will need to contact your local FAE for help if you have one.
    thanks
    Onyx