TI的工程师,您好!
项目在使用BQ27426时,对Chg DOD Correction Taper Ratio寄存器的使用,有些不明白的地方:

1、该寄存器的默认值为2,为什么?
2、当需要修改该寄存器的值时,如何计算?
谢谢!
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TI的工程师,您好!
项目在使用BQ27426时,对Chg DOD Correction Taper Ratio寄存器的使用,有些不明白的地方:

1、该寄存器的默认值为2,为什么?
2、当需要修改该寄存器的值时,如何计算?
谢谢!
您好,请参考下面内容:
The gauge needs to know cell state (Depth Of Discharge, DOD) at all times. DOD is difficult to obtain accurately (ideally with a true OCV measurement and coulomb count). The gauge has a method to minimize DOD error close to end of charge, if the current is below a threshold that is set with this parameter (threshold current = Chg DOD Correction Taper Ratio * DesignCapacity / Taper Rate)
您好,这款芯片是预编程三种化学配置文件,默认是4.35 V (3230),如果您用的是这个型号,很多参数不需要修改。
taper rate是上面这个参数。如果不确定threshold current设置多少,建议使用默认参数。