MAX5971A Maxim Integrated Products, MAX5971A Datasheet - Page 6

• Manufacturer Part Number: MAX5971A
• Description: Single-Port 40W IEEE 802.3af/at PSE Controller with Integrated MOSFET
• Manufacturer: Maxim Integrated Products

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