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N65HVD1780D的批量化故障问题 补充

Other Parts Discussed in Thread: SN65HVD1780

刚才帖子不见了,再发一次

我们在使用SN65HVD1780D的过程中发现,电路板焊接(回流焊)回来后,调试过程故障率达到30%以上,手工焊接更换上新的芯片后就正常。

请教什么原因?

 

另外,也怀疑供货渠道有问题,但一直没找到依据。

下面是器件的丝印内容,对否? 为什么是"VP1780"