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LM51772: 在开启内部分压网络和PCM功能时如何连接VIN-FB引脚

Part Number: LM51772

我希望使用I2C接口动态的调节输出电压,所以我将FB引脚上拉至VCC2以启动内部Vout分压网络,但是此时VIN-FB引脚应如何连接?

官方给的LM51772数据手册提到:

VIN-FB: VIN sense pin. Connect to a VIN divider with the same gain as the VOUT divider for using PCM with external divider.
If the internal Vout divider or if PCM is not used, connect to AGND. Do not leave floating.

这里只提到不使用内部分压器或不使用PCM模式时VIN-FB的连接方式,并没有说明使用内部分压器时该如何连接VIN-FB引脚。是否意味着在这种情况下,VIIN-FB应该直接连接到VIN?