BQ27Z561-R2: SOC 0% discharge from 0.2C to Term Voltage 3.4V, requires at least 1H

Alex ma

Part Number: BQ27Z561-R2
Other Parts Discussed in Thread: GPCRB

When discharging at -10 ℃, the SOC is discharged from 0% to Term Voltage 3.4V, with a duration of more than 1H. Can you help me check how to optimize it;
The attachments are GG files and low report files;BQ27561 LowTem 4.4V 02-report.zip gg.zip LT-20260321.zip

2 个月前

0 FRANK1 2 个月前

TI__Genius 16270 points

感谢您对TI产品的关注！
已经收到了您的案例，调查需要些时间，感谢您的耐心等待。

0 Alex ma 2 个月前

Prodigy 20 points

No response received

0 Daniel 2 个月前回复 Alex ma

TI__Mastermind 48295 points

您好

please attach any associated .log/.gg files associated with the projects

0 Alex ma 2 个月前回复 Daniel

Prodigy 20 points

...

0 Alex ma 2 个月前回复 Alex ma

Prodigy 20 points

...

There are attachments on the issue

0 Alex ma 2 个月前回复 Daniel

Prodigy 20 points

0 Daniel 2 个月前回复 Alex ma

TI__Mastermind 48295 points

您好

It is likely that your Rblow values are not optimized for the -10 degrees C temperature. It looks like your Rblow values could be too high causing the gauge to underestimate capacity. Please utilize the GPCRB tool to optimize the Rblow values.

0 Alex ma 2 个月前回复 Daniel

Prodigy 20 points

Hi 这里就是 GPCRB 计算反馈结果

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BQ27Z561-R2: SOC 0% discharge from 0.2C to Term Voltage 3.4V, requires at least 1H