BQ40z50 Thermistor Coefficients

David Thompson2

Other Parts Discussed in Thread: BQ40Z50

I found datasheet slua398 and its associated excel spreadsheet but it wants the values for R1 and R2. According to the BQ40z50 datasheet, the thermistors are connected directly so these resistors are either internal or not used.

If there an updated spreadsheet/method for calculating the coefficients used by the BQ40z50?

Thanks

over 10 years ago

0 ThomasCosby over 10 years ago

TI__Guru 73830 points

David

Here is the spreadsheet for the bq40z50 device.

Tom

bq40z50 family Thermistor Coef Calculator.xlsx

0 David Thompson2 over 10 years ago in reply to ThomasCosby

Intellectual 685 points

Great, thanks.

0 user68921447 over 9 years ago in reply to ThomasCosby

Intellectual 360 points

Hi,

May I know what kind(brand and part no.) of thermistor match the coefficients import by defaults?
(EVM BOM use Semitec AT103-2, but it can't match the coefficients import by defaults.)
Thanks!

Power management

Power management forum

BQ40z50 Thermistor Coefficients