Hello,
I'm understand the concept of demotion but I don't understand the Table 3 on the datasheet for TPS2372. On page 16 we can see Table 3. It states that a PSE type 3-4 can just allocate 12.95w on a type 4-8 PD. If a Type 3 PSE can supply 60w ( 51w at the PD), I don't understand why the PSE can just allocate 12.95w according to the table. I would agree with Table 3 if on the PSE column the first position was for Type 1 PSE, second position for Type 2 PSE and third position for Type 3 PSE. I'm probably missing something and that is why I don't understand it , if somebody could explain it would be really appreciated.
Regards,
Daniel.