6 ______________________________________________________________________________________
Single-Port, 40W, IEEE 802.3af/802.3at PSE
Controller with Integrated MOSFET
Typical Operating Characteristics
(T
A
= +25癈, unless otherwise noted.)
DC DISCONNECT THRESHOLD
vs. TEMPERATURE
TEMPERATURE (癈)
60
35
10
-15
6.6
6.8
7.0
7.2
7.4
6.4
-40
85
FOLDBACK CURRENT-LIMIT THRESHOLD
vs. OUTPUT VOLTAGEt
V
AGND
- V
OUT
(V)
30
20
10
100
200
300
400
500
600
700
800
0
0
40
CLASS 4
CLASS 0, 1, 2, 3
INTERNAL FET RESISTANCE
vs. TEMPERATURE
TEMPERATURE (癈)
60
35
10
-15
400
600
800
1000
200
-40
85
V
EE
OVERVOLTAGE LOCKOUT
vs. TEMPERATURE
TEMPERATURE (癈)
60
35
-15
10
60.5
61.0
61.5
62.0
63.0
62.5
63.5
64.0
60.0
-40
85
V
EE
UNDERVOLTAGE LOCKOUT
vs. TEMPERATURE
TEMPERATURE (癈)
60
35
10
-15
27.5
28.0
28.5
29.0
29.5
30.0
27.0
-40
85
ANALOG SUPPLY CURRENT
vs. TEMPERATURE
TEMPERATURE (癈)
60
35
10
-15
2.4
2.5
2.6
2.7
2.3
-40
85
MEASURED AT AGND
ANALOG SUPPLY CURRENT
vs. INPUT VOLTAGE
V
AGND
- V
EE
(V)
56
52
48
44
40
36
2.4
2.5
2.6
2.7
2.3
32
60
MEASURED AT AGND
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