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ULN2003AN输出电流

查阅ULN2003AN的datasheet,其每路输出均可达到最大值500mA。

我在测试过程中发现,电流输出达到150mA,芯片发热比较严重,在此情况下,是否需要增加散热片?还是说属正常现象,可以不用管它。

如果继续增大输出电流,是否需要增加散热片?

谢谢!

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