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TPS3702CX12DDCT芯片连接冲突

在进行TPS3702CX12DDCT芯片的原理图连接的时候,正常情况下,该芯片的SENCE引脚和SET引脚,应该是连起来的。但是我在研究咱们28388D的评估板的时候,发现,有个接法不一样,没研究明白,望得到支持。评估板中用到的监控芯片,SENCE接了1.2V,SET接了3.3V。这是出于什么思考呢?