BQ27520-G4: update Ra table for end application

K.Yaita

Part Number: BQ27520-G4
Other Parts Discussed in Thread: GPCRB

Hi Team,

I understand C/5~C/10 load is required for Learning Cycle to update Ra table.
https://www.tij.co.jp/jp/lit/an/slua903/slua903.pdf

Does it indicate actual load of end application requires more than C/10 load to update Ra table?

Best Regards,
Yaita

7 months ago

+1 Anthony Baldino 7 months ago

TI__Genius 13035 points

Hi Yaita,

The actual load of the end application after the learning cycle has been completed does not have to be C/10 for the Ra table to be updated.

The GPCRB tool attached below can be used to optimize the gauge with the load attached.

https://www.ti.com/tool/GPCRB

Regards,

Anthony Baldino

0 K.Yaita 7 months ago in reply to Anthony Baldino

Guru 29690 points

Hi Anthony-san,

Thank you for your answer.
My customer saw Ra table have not been updated if actual load is about C/20 (constant current).
So I believe there is requirement of the minimum load to update Ra table. Is it correct?

I would like to have your advice.

Best Regards,
Yaita

0 Anthony Baldino 7 months ago in reply to K.Yaita

TI__Genius 13035 points

Hi Yaita,

Can you please send the .gg file and log file of this occurrence?

This will allow us to take a deeper look into why the Ra table is not updating in this situation.

Regards,

Anthony Baldino

0 K.Yaita 7 months ago in reply to Anthony Baldino

Guru 29690 points

Hi Anthony-san,

Thank you for your support.
I would like to share these files in offline.
Could you accept my friendship request? Then I can share it.

Best Regards,
Yaita

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BQ27520-G4: update Ra table for end application