BQ28Z610: Temperature calibration

Jason Change

Intellectual 370 points

Part Number: BQ28Z610
Other Parts Discussed in Thread: BQSTUDIO

Hi Team,

If i used internal temperature sensor, do we need temperature calibration?

Regards,

Jason

over 5 years ago

0 Damian Lewis over 5 years ago

TI__Mastermind 34775 points

Hello Jason,

For the best accuracy the answer is yes, but it depends on the temp accuracy you're trying to achieve. If you're ok with the present accuracy then you don't need to.

0 Andy Liu (BMS) over 5 years ago

TI__Guru 52115 points

Hi Jason,

I would suggest you follow the instructions mentioned in Section 11.5.1 Internal Temperature Sensor Calibration of bq28z610 TRM to calibrate the internal temperature sensor for the best gauging performance.

Andy

0 Jason Change over 5 years ago in reply to Andy Liu (BMS)

Intellectual 370 points

Hi Andy,

I saw 11.5.1 internal temperature sensor calibration a little bit complex.

I found the BQ28Z610EVM user guide 3.4.2 to introduce temperature calibration also.

May i use 3.4.2 method to calibrate internal temperature sensor?

Calibration step as below:

1. Measure room temperature with temperature meter (meter close PCB)

2. Read value from temperature meter and fill in value to Applied temperature field.

3. Select the Calibrate box.

4. Press the Calibrate Gas Gauge button to calibrate the temperature measurement system.

0 Jason Change over 5 years ago in reply to Damian Lewis

Intellectual 370 points

Hi Damian,

Thanks for your suggestion.

Regards,

Jason

0 Andy Liu (BMS) over 5 years ago in reply to Jason Change

TI__Guru 52115 points

Hi Jason,

Yes. Bascially, the calibration procedure mentioned in the TRM is implemented in the bqStudio.

Andy

0 Jason Change over 5 years ago in reply to Andy Liu (BMS)

Intellectual 370 points

Hi Andy,

Thanks for your help.

Jason

Power management

Power management forum

BQ28Z610: Temperature calibration