Other Parts Discussed in Thread: BQ40Z50
bq40z50进入SHUTDOWN时间最快是多久?我把SHUTDOWN时间和MOS OFF TIME都设置成1S,但是在MOS关闭后状态位置位需要6S,在状态位不置位的情况下,即使插入充电器也无法激活,请问这现象正常吗?
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bq40z50进入SHUTDOWN时间最快是多久?我把SHUTDOWN时间和MOS OFF TIME都设置成1S,但是在MOS关闭后状态位置位需要6S,在状态位不置位的情况下,即使插入充电器也无法激活,请问这现象正常吗?
您好,
If there is voltage on PACK pin the gauge will stay awake, I'm not sure the type of charger being used or what voltage it applies to the PACK+/- on the gauge.
It's not recommended to set both the shutdown time and FET off time to the same value, you want the voltage on the PACK pin to be lower than the shutdown threshold otherwise it will not go to shutdown.
您好,Is this when the execute the command twice to immediately enter shutdown? OR with the shutdown delays? Please check to see if sending the command multiple times speeds up the sequence. Also ensure that the voltage on the PACK pin is below the Vstartup threshold and charger present threshold to make sure the gauge will go to shutdown faster.
您好,
How you you actually determining the 6 second delay? Just by checking the register may not be a good method since there are delays within the GUI to display, you should look at power consumption of the gauge if possible.
I don't believe the gauge will be able to enter shutdown mode in 1s, it will most likely take at least 2-3s in order to fully shutdown after the command is received.
The gauge will remain active after the command is sent and the voltage is high on PACK, if you remove the voltage on PACK it will then go to shutdown, it is essentially waiting for the conditions to be valid.
I don't believe the gauge will be able to enter shutdown mode in 1s, it will most likely take at least 2-3s in order to fully shutdown after the command is received. 其实你这句话作为解释就已经足够了,意思就是哪怕我把SHUTDOWN时间设置成1S,电量计要完全关闭也至少要3S,实测是5S.所以在电量计动作的这段时间5S内即使插入充电器也无法激活是因为你的SHUTDOWN命令在执行,执行时间要5S钟,这是这颗IC本身的特性,我的理解对吗?