BQ27Z746: BQ27Z746_Low temperature optimization

q h

Part Number: BQ27Z746
Other Parts Discussed in Thread: GPCRB

Tool/software:

Hi ti team
I am using BQ27Z746 for low temperature optimization，attached is the optimization file provided by TI, which I used for testing. However, I found that the SOC accuracy was very high at 1A low temperature discharge, but the SOC accuracy of 2A low temperature discharge was significantly worse.Is there any way to improve the SOC accuracy of 2A low temperature discharge?

1346.1A@-20℃.xlsx 8203.2A@-20℃.xlsx

4073.Send to TI (GPCRB)V2-21700-1s2p-9600-PANASONIC_report.zip

15 days ago

0 Jonny 14 days ago

TI__Mastermind 20221 points

Hello,

Did you make sure to also load the chemdat12_ID7473 onto the gauge?

Regards,

Robert.

0 q h 14 days ago in reply to Jonny

Prodigy 220 points

Hi Robert.

I have load the chemdat12_ID7473 onto the gauge, I know it include RB table, The SOC accuracy of 1A low-temperature discharge is OK, but the SOC accuracy of 2A low-temperature discharge will become worse. Is there any way to improve the low-temperature discharge of 2A?

0 Jonny 13 days ago in reply to q h

TI__Mastermind 20221 points

Hello,

Can you share your gg file with me?

Regards,

Robert.

0 q h 12 days ago in reply to Jonny

Prodigy 220 points

Hi Robert

8816.gg_out.gg.csv

The attachment is gg.file

0 Jonny 12 days ago in reply to q h

TI__Mastermind 20221 points

Hello,

Please expect a delay while I look into this.

Regards,

Robert.

Power management

Power management forum

BQ27Z746: BQ27Z746_Low temperature optimization