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BQ40Z50-R1: BQ40Z50R1的FCC相差很大

Part Number: BQ40Z50-R1

您好,我这有个现象。

1、同一支电芯、同一个固件,配置用SOC充电保护,CHGFET=1,RSOCL=0

2、两个板,IC是同一批,装在同一个电池组上学到的FCC相差30%,这个不良率很高。

请问下这个是什么原因导致的?如果配置问题,那有大部分是正常的。是否是IC有问题?(注:电芯没问题,不良板不管换哪组电池FCC都有问题,好的板子不管装哪组电池,FCC都是好的。)

BQ40Z50 1.logbq40z50 2.log

BQ40Z50R1.gg.txt
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* Texas Instruments Data Flash File
* File created Mon Jun 07 11:18:32 2021
*
* Device Number 4500
* Firmware Version 1.06
* Build Number 36
* Order Number 0
*
* bqz Device Number 4500
* bqz Firmware Version 1.06
* bqz Build Number 36
*
* Field Order: Class name Subclass name Parameter name Parameter Value Display Units
Calibration Voltage Cell Gain 12122 -
Calibration Voltage Pack Gain 49590 -
Calibration Voltage BAT Gain 48763 -
Calibration Current CC Gain 2.079 mOhm
Calibration Current Capacity Gain 2.079 mOhm
Calibration Current Offset CC Offset 0 -
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

x 出现错误。请重试或与管理员联系。