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bq76940级联问题

请问一下两片76940级联使用,那么第二片940的电流采样引脚、ALARM引脚以及CHG、DSG引脚怎么处理(可以直接接到第二片的VSS引脚吗?),我不用940的CHG、DSG来控制MOS,谢谢。

另外,940休眠的使用LDO有没有输出的?