BQ40Z50-R1: BQ40z5-r1 充电时FCC不增加

您好，FCC的更新和放电率，温度等因素有关。您的CHEM ID是否配置并且完整学习。

有配置，有学习，数据也有log。问题是充。电到100%在充电容量也不见涨。。。

您好 ，请参考下面文档3.5 电量计 FCC 更新机制及 FCC 偏小问题分析

www.ti.com.cn/.../zhcaaf7.pdf

为什么电量到100%，在充电容量也不会升了？？

您好, 充电达到Grid Point点会更新RM和FCC, 充电截止每当充电充满截止时 RM, FCC 重新仿真更新。

详细请参考上面文档

按这个文档www.ti.com.cn/.../zhcaaf7.pdf   3.5说的，电流积分的方法二是直接读取电量计的PassedCharge 寄存器获得放出电量。

BQ40Z50-R1 DF>>Gas Gauging>>IT Cfg>>Term Voltage = 9000mV
BQ40Z50-R1 DF>>Gas Gauging>>IT Cfg>>Term Min Cell V= 3000mV
BQ40Z50-R1 DF>>Settings>>Configuration>>IT Gauging Configuration
[CELL_TERM] = 1

电池放到9.0V ,CELL电压3.012V时,DOD0 Passed Q 显示3057，FullChgCap显示2775。 为什么这两个值不一样呢？

您好,The reported FCC and DOD0 passed Q is not the same. DOD0 passed Q is not sync with FCC

FCC is the available capacity from full to empty that the gauge stablishes at the start of discharge. FCC can change during the discharge cycle based on multiple factors (temperature, load, internal resistance, etc).

DOD passed Q  will reset when the gauge is in RELAX and an OCV measurement is taken. Then, during discharge the gauge will accumulate all passed charge. This reported value cannot be analyzed with FCC directly. This value can have errors due to the gauge not being able to take OCV measurement and not updating this values properly. This value will decrease if positive current is sensed and increase if negative current is sensed. 

Configuration[RSOCL] = 0,设置为0了为什么充电时电量不是慢慢上升到99%然后在跳到100%？提前了好多就跳了，1211.log

您好，正在询问更了解这款芯片的TI工程师，稍后回复。

您好，FCC is updated at the end of charge. The gauge detected a valid charge termination (VCT). Since SYNC is set, it will force RM to be the same as FCC. Hence, SOC = 100%. This is normal behavior.