max5969a Maxim Integrated Products, Inc., max5969a Datasheet - Page 5

• Manufacturer Part Number: max5969a
• Description: Ieee 802.3af/at-compliant, Powered Device Interface Controllers With Integrated Power Mosfet
• Manufacturer: Maxim Integrated Products, Inc.

(V
300
250
200
150
100
IEEE 802.3af/at-Compliant, Powered Device Interface
0.5
0.4
0.3
0.2
0.1
IN
50
70
60
50
40
30
20
10
0
0
= (V
0
0
0
PG SINK CURRENT vs. PG VOLTAGE
I
R
RTN = 2EC = PG = WAD = V
-40°C P T
IN
DET
DD
= I
CLASSIFICATION CURRENT vs.
10
VDD
= 24.9kI
5
2
- V
DETECTION CURRENT
vs. INPUT VOLTAGE
+ I
A
SS
INPUT VOLTAGE
DET
T
20
10
P +85NC
A
) = 54V, R
= -40NC
4
V
V
_______________________________________________________________________________________
V
PG
IN
IN
30
15
CLASS 5
CLASS 4
CLASS 3
CLASS 2
CLASS 1
CLASS 0
(V)
(V)
(V)
DD
6
T
A
Controllers with
40
20
T
= +25NC
DET
A
= +85NC
8
= 24.9kω, R
50
25
60
10
30
26.0
25.5
25.0
24.5
24.0
CLS
150
130
110
90
70
50
0
0
= 615ω. RTN, WAD, PG, and 2EC unconnected; all voltages are referenced to V
T
I
R
RTN = 2EC = PG = WAD = V
IN
A
DET
CLASSIFICATION SETTLING TIME
= +25NC
= I
10
= 24.9kI
VDD
SIGNATURE RESISTANCE
2
INRUSH CURRENT LIMIT
vs. INPUT VOLTAGE
+ I
vs. RTN VOLTAGE
DET
20
T
4
100µs/div
A
V
V
= +85NC
RTN
IN
T
30
A
(V)
= -40NC
(V)
Integrated Power MOSFET
DD
6
40
R
Typical Operating Characteristics
CLS
MAX5969A toc05
= 30.9 I
8
50
10
60
0A
V
10V/div
V
1V/div
0V
IN
CLS
I
200mA/div
IN
900
800
700
600
500
400
300
200
100
2.0
1.6
1.2
0.8
0.4
-2
-4
4
2
0
0
0
0
0
2EC SINK CURRENT vs. 2EC VOLTAGE
NORMAL OPERATION CURRENT LIMIT
T
T
A
A
= -40NC
= +25NC
10
10
INPUT OFFSET CURRENT
2
vs. INPUT VOLTAGE
vs. RTN VOLTAGE
20
20
T
T
A
A
= -40NC
4
V
V
V
= +85NC
V
V
V
SS
2EC
WAD
RTN
2EC
IN
T
30
30
UNCONNECTED
A
(V)
REFERENCED TO RTN
(V)
= 14V
(V)
= +85NC
6
40
40
T
A
= +25NC
8
50
50
SS.
5
)
10
60
60