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你好，
我公司用BQ40Z80做洗地机的电池管理方案，现在看来它的性能是超过了洗地机的要求。目前我们在寻找一个低成本的方案，能够替代BQ40Z80，并且要求BMS的软件变更尽可能的少。
Regards
Alex Chen
您好，
建议使用下面的器件
https://www.ti.com.cn/product/cn/BQ40Z60
https://www.ti.com.cn/product/cn/BQ40Z50
三者区别如下，请贵司技术人员根据贵司的产品做出最终选择。
https://www.ti.com.cn/compare-products/zh-cn/?id=412&type=GPT&partList=BQ40Z60,BQ40Z50,BQ40Z80&columnList=-2,3318,338,1152,199,626min,626max,1960,308,2192,1192,689,1130,-4
谢谢回复，
可是我们是7节电池串联，BQ40Z50或者BQ40Z60是不是要两片？
了解了，如果是7节的话，建议选择下面链接中的IC
https://www.ti.com.cn/compare-products/zh-cn/?id=412&type=GPT&partList=BQ34110,BQ40Z80,BQ78350-R1A,BQ34Z100-R2,BQ34Z100-G1&columnList=3318,338,1152,199,626min,626max,1960,308,2192,1192,689,1130,-4
