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BQ4050: BQ4050 用0.2C放电更新FCC正常 用0.5C和1C放电 更新出来的FCC偏大

Part Number: BQ4050


请问影响FCC偏大的原因有哪些?

Battery Low % 设置为7%

以下是上次TI官网回传的数据

GPC CEDV tool, rev=60
Configuration used in present fit
ProcessingType=1
NumCellSeries=1
CellTermV=3000
ChemType=1
VoltageColumn=2
CurrentColumn=3
TemperatureColumn=1
ElapsedTimeColumn=0
FitMaxSOC%=12
FitMinSOC%=6
LearnSOC%=7

CEDV parameters resulting from the fit. If EDVV bit is set to 1, EMF and EDVR0 have to be multiplied by the number of serial cells when written to data flash

EMF 3473
EDVC0 115
EDVC1 0
EDVR1 510
EDVR0 114
EDVT0 926
EDVTC 11
VOC75 3935
VOC50 3808
VOC25 3752

  • 您好,FCC 表示锂电池从充满电 (Full Charge) 开始放电到截止电压 (EDV, End of Discharge Votage) 区间累计放出的电量。跟放电温度,放电电流等因素有关。FCC稍微偏大是正常的。