LTC4263-1 Linear Technology, LTC4263-1 Datasheet - Page 6

• Manufacturer Part Number: LTC4263-1
• Description: High Power Single PSE Controller
• Manufacturer: Linear Technology

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TYPICAL PERFORMANCE CHARACTERISTICS
LTC4263-1
6
675
600
525
450
375
300
225
150
75
0
0
Current Limit and Foldback
5
10 15 20 25
V
DD48
1.2
1.0
0.8
0.6
0.4
0.2
1.6
2.0
1.8
1.4
1.2
1.0
0
– V
–40 –20
0
I
Supply Voltage with V
R
OUT
DD48
T
ON
A
30 35 40 45
= 25°C
(V)
vs Temperature
10
DC Supply Current vs
0
TEMPERATURE (°C)
20
V
42631 G03
20
DD48
50
30
(V)
40
25k LOAD WITH
AC ENABLED
DD5
40
NO LOAD
60
= 5V
4
3
2
1
0
50
0
80
LED Pin Pull-Down
vs Load Current
T
INTERNAL V
42631 G16
A
42631 G08
= 25°C
100
60
10
I
LED
DD5
LOAD CURRENT (mA)
20
30
–20
–40
–1
–2
–3
40
20
2
1
0
40
0
4.0
0
I
vs Supply Voltage
Legacy Pin Current vs Voltage
DD5
V
DD48
42631 G04
DC Supply Current
50
= 48V
1
4.5
COMPLIANT DETECTION MODE
FORCE POWER ON MODE
V
2
2.5
2.0
1.5
1.0
0.5
V
LEGACY
DD5
0
5.0
0
I
Voltage with Internal V
(V)
DD48
T
A
LEGACY MODE
25k LOAD WITH
(V)
3
= 25°C
AC ENABLED
10
NO LOAD
DC Supply Current vs Supply
5.5
4
20
42631 G17
V
42631 G09
DD48
6.0
30
5
(V)
25k LOAD WITH
AC ENABLED
40
NO LOAD
DD5
50
42631fa
42631 G07
60