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TPS1H100-Q1热焊盘如何处理



之前再用demo板测试时没注意热焊盘,本次设计中,考虑到散热和铺铜,在热焊盘出处铺铜直接连接到地,芯片的地通过电阻和二级管接地,板子回来发现信号输入后无输出,将热焊盘和地短接没问题,请问这个热焊盘如何处理,如果扫除虚焊的问题,这个热焊盘必须先接芯片地再接电源地?还是有什么其他说法,如果热焊盘是VCc呢