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BQ27441静态电流问题



在规格书中描述电流有三个模式:是否SLP  HIB 以及SD模式需要I2C进行配置。

 在电池第一次插入后,未进行开机的状态下,此时IC的模式是什么状态?

CC(1) NORMAL mode current      ILOAD > Sleep Current(2) 93 μA
ISLP(1) SLEEP mode current       ILOAD < Sleep Current(2) 21 μA
IHIB(1) HIBERNATE mode current   ILOAD < Hibernate Current(2) 9 μA
Fuel gauge in host commanded
ISD(1) SHUTDOWN mode   current SHUTDOWN mode.   0.6 μA
(LDO regulator output disabled)

  • 只要电池插入,芯片得到供电,会进入Normal 模式,在Initial 完成之后, 如果这时系统电流<Seep current,IC会自动进入Sleep.

    如果系统有电流,会在Normal模式正常工作。

    只有满足进入shutdown的条件或者发送强制进shutdown命令,才会进去。