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BQ45Z50 配置好了 MOS不能打开

Other Parts Discussed in Thread: BQ40Z50

配置的是4串的, 去掉了官网的化学保险丝。 在网上看到别人的帖子,说是把FUSE接地就有输出了,我试了一下 确实是有输出了。但是有疑问,规格书里面也没有看到 如果不使用FUSE脚该怎么处理,我就按照BQ20Z75的做法悬空,为什么没有输出.  这个FUSE功能在data memory 能不能关掉,因为我的板已经定下来了,走飞线不大好。

  • BQ40Z50的Fuse pin也用于检测外部的二级保护IC烧Fuse的工作,即Fuse pin检测到外部有高电平,Fuse bit也会置起来。所以不用Fuse pin,也建议把它下拉到地。

  • 12.1.13 ManufacturerAccess() 0x001D Fuse Toggle
    This command manually activates/deactivates the FUSE output to ease testing during manufacturing. If
    the OperationStatus()[FUSE] = 0 indicates the FUSE output is low. Sending this command toggles the
    FUSE output to be high and the OperationStatus()[FUSE] = 1.