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bq24195 sys输出电流只能达到3A



在寄存器默认配置下,BAT电压4.12V,SYS电压4.12V,负载为1.1欧姆100w的电阻,测得电流最大只能达到3A。配置了寄存器,最大输出还是3A。手册上不是说最大能有4.5A吗?还是我的使用方法有误