16 _____________________________________________________________________________________
Single-Port, 40W, IEEE 802.3af/802.3at PSE
Controller with Integrated MOSFET
Figure 1. Detection, Classification, and Port Power-Up Sequence
Figure 2. Detection, 2-Event Classification, and Port Power-Up Sequence
V
OUT
t
0V
-4V
-9.3V
-18V
-48V
t
DET(1)
t
DET(2)
tCLASS
80ms
150ms
150ms
19ms
V
OUT
t
0V
-4V
-9.3V
-18V
-48V
t
DET(1)
t
DET(2)
t
CLASS(1)
t
CLASS(2)
80ms
150ms
150ms
19ms
19ms
9ms
9ms
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