BQ76952: BQ76952

Sanjay Gautam

Part Number: BQ76952

Dear TI Expert,

I am using an external (NTC)temperature sensor 10K @ 25°C in TS1, I have a lookup table for that NTC (Resistance vs Temperature), and for this, I have to calculate R2 (Value of NTC in Oms) which is my requirement. but I am not able to read Vout(ADC voltage).

Thanks & Regards

Sanjay Kumar Gautam

over 1 year ago

0 Max Verboncoeur over 1 year ago

TI__Mastermind 25605 points

Hi Sanjay,

I recommend using the device's internal calculation to acquire the temperature measurement. This can be read from 0x70 TS1 Temperature().

See this FAQ for details on how to configure the device for your thermistor: (+) [FAQ] BQ76952: How to configure the temperature model of BQ769x2 using the thermistor coefficient calculator tool? - Power management forum - Power management - TI E2E support forums.

The device's internal calculation will give you the best accuracy as the polynomial used in the coefficient tool takes into account the devices internals, which will help to give the best approximation of the measured temperature.

Regards,

Max Verboncoeur