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BQ20z45.BQ30z55 多节IC自带均衡功能吗?

Other Parts Discussed in Thread: BQ20Z45

各位,请教下,

TI 多节BQ管理芯片如BQ20z45 BQ20z75 BQ30z55 ,它们本身带均衡充电功能吗?

cell 压差等于50mV,如:3620mV .3595mV.3570mv,三节电芯组装成PACK后,经过learning cycle ,电芯之间的压差为什么会小于15mV?