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放大器OPA564在画PCB时的相关问题



 数据手册第24页,关于散热这部分的注意事项有具体的图片说明吗,the attached thermal land pattern mechanical drawing 附加的散热绘图在哪里找得到,芯片手册上并没有,一般散热过孔的数量13mils和25mils各是多少比较合适?谢谢~~

  • OPA 564的datasheet中对散热焊盘的过孔介绍的不是很多,您可以参考这篇应用手册,在Page9有详细的对各种封装的Thermal Land Size以及Thermal Via的绘图,可以参考一下http://www.ti.com/lit/an/slma002g/slma002g.pdf