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求推荐几款电池端用的电池管理芯片方案

Other Parts Discussed in Thread: BQ40Z50-R1, BQ24133, BQ28Z610

现在有一个手持式的测量仪表项目,电池模块可拆卸。两节18650电池串联结构3000毫安时左右。充电用的是BQ24133。求推荐几款电池管理的芯片以及保护芯片。要求:简单易用,价格便宜,IIC接口或SMB接口。   PS:吐糟目前在用的BQ40Z50-R1芯片,配置复杂,资料少,连一份完整的从配置到学习到量产的说明文档都找不到。