BQ25895这颗充电芯片 PMID和sys可以同时输出吗, 我的理解是当适配器供电时,PMID会连到输入电压5v,sys的电压由输入降压得到3.5-4.5v;
如果是无适配器供电,sys直连到bat,输出bat电压,而PMID则通过bat升压至5V。
另外功耗的问题,同时给电池充电3A,sys以及PMID也2A,芯片能承受住吗,芯片温度能到多少?
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您好,The BQ25895 can provide up to 5A of output current draw (3A at battery and 2A at SYS is therefore okay), but only with an adequate input supply.
The device will enter thermal regulation where charge current is reduced when the chip temperature is too hot. The default temperature to enter thermal regulation is 120C.