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LM5022: Webench的设计和Excel表格设计的区别

Part Number: LM5022

设计一款9-36V输入,8V2A输出的反激变换器

使用Webench设计出来的电路上,光耦的三极管Collector端是直接接到COMP引脚上的

而在LM5022相关设计资料的Excel设计表格slpc017b的Excel表格中,给出的应用电路如下

光耦的Collector端接了上拉电阻到Vpull_up

请问应该按照哪一种接法,且Vpullup应该连接到哪里,是什么电平?