UCC21231: Pin脚数据类型问题

Part Number: UCC21231
Other Parts Discussed in Thread: LM5045,

The customer asked:

When I read the datasheet UCC21231, For DT pin, so if I understand correctly, if we use LM5045 on primary side, and for secondary side DT PIN should float or short to VCCI.

We are considering to float this pin, is that OK or recommend to short to VCCI?

Please help us to solve the question. Thank you!

ucc21231.pdf