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关于bq40z50-r1设计问题,特急!

Other Parts Discussed in Thread: BQ3050, BQ40Z50

我设计了一个40z50-r1方案,因为板小,把外部fuse功能取消了,IC的fuse引脚悬空,现在的问题是不把此引脚接地的话充放电MOS都被关闭。我的问题是此引脚一定要下拉吗?我已经从寄存器里面把这个功能关断了,也不检测外部二极保护熔断电压,可就是不行,是我没设置对吗?还是此引脚必须下拉?

急等答案,谢谢!