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LTC4263 Datasheet(PDF) 6 Page - Linear Technology

Part # LTC4263
Description  Single IEEE 802.3af Compliant PSE Controller with Internal Switch
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC4263 Datasheet(HTML) 6 Page - Linear Technology

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LTC4263
6
4263fe
TYPICAL PERFORMANCE CHARACTERISTICS
RON vs Temperature
Legacy Pin Current vs Voltage
Current Limit and Foldback
LED Pin Pulldown
vs Load Current
Classification Current Compliance
IDD48 DC Supply Current vs Supply
Voltage with Internal VDD5
IDD48 DC Supply Current vs
Supply Voltage with VDD5 = 5.0V
IDD5 DC Supply Current
vs Supply Voltage
VDD48 – VOUT
0
0
50
150
200
250
30 35 40 45
450
4263 G03
100
5
10152025
50
300
350
400
ILED LOAD CURRENT (mA)
0
0
1
3
4
4263 G04
2
10
20
30
40
50
TA = 25°C
INTERNAL VDD5
VDD48 – VOUT (V)
04
0
10
30
70
80
4263 G05
20
40
60
50
812
16
20
VDD48 – VSS = 48V
TA = 25°C
VDD48 (V)
0
0
0.5
1.5
2.0
2.5
4263 G07
1.0
10
20
30
40
50
60
25k LOAD WITH
AC ENABLED
NO LOAD
TA = 25°C
VDD48 (V)
0
0
0.2
0.6
0.8
1.0
1.2
4263 G08
0.4
10
20
30
40
50
60
25k LOAD WITH
AC ENABLED
NO LOAD
TA = 25°C
VDD5
4.0
–3
–2
0
1
2
4263 G09
–1
4.5
5.0
5.5
6.0
25k LOAD WITH
AC ENABLED
NO LOAD
VDD48 = 48V
TEMPERATURE (°C)
–40
–20
1.0
1.4
2.0
0
40
60
4263 G16
1.2
1.8
1.6
20
80
100
VLEGACY (V)
0
0
20
4
4263 G17
–20
–40
1
2
3
5
40
LEGACY MODE
FORCE POWER ON MODE
COMPLIANT MODE


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