BQ41Z90: Thermistor Coef caclculator for bq41z90

Kari Hautio

Prodigy 20 points

Part Number: BQ41Z90
Other Parts Discussed in Thread: BQ40Z50

Tool/software:

I would need to optimize thermistors for bq41z90 and would need the correct tool.

I tried to use the bq40z50 one but that gave one coefficient value > 32767 which will not fit INT16 in configuration.

1 month ago

0 Alan Frias 1 month ago

TI__Mastermind 30790 points

Hello,

This question has been assigned and will be reviewed when possible.

Thank you,
Alan

0 Kari Hautio 1 month ago

Prodigy 20 points

Thermistor Vishay NTCLE413E2103H400A

resulting a2 is out of range of int16

0 Diego 20 days ago in reply to Kari Hautio

TI__Mastermind 28985 points

Hi,

Then this thermistor can not be used.

Regards,

Diego

0 Kari Hautio 16 days ago

Prodigy 20 points

Apparently if I start the calibration from -35C instead of -40, the coefficients are valid, such negative tempratures are irrelevant anyway so this is a working solution.

Power management

Power management forum

BQ41Z90: Thermistor Coef caclculator for bq41z90