由于结构及成本考虑
需要把充放电回路分开,不知道BQ40Z50是否支持这么做?
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这里提一点注意的地方,是PACK pin的电路设计。PACK pin是复用pin,一是作为DSG pin的参考电压,而是作为插入充电器来唤醒。这两个功能一个是跟放电口相关,一个是跟充电口相关。所以把充放电回路分开不好处理。