When my customer use AMC7832, IOVDD should be connected to 3.3V. But they notice that, even IOVDD is NC, AMC7832 could work well in room temperature. And when IOVDD is NC, IOVDD voltage is 3.3V.
I verify this in EVM. When IOVDD is NC, IOVDD voltage is 2.2V. Why does IOVDD has voltage when not connected? Thanks!