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LT4295 Datasheet(PDF) 8 Page - Analog Devices

Part # LT4295
Description  48-Port IEEE 802.3bt PoE PSE Controller
PDF  50 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

LT4295 Datasheet(HTML) 8 Page - Analog Devices

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LTC9101-1/
LTC9102/LTC9103
8
Rev. 0
For more information www.analog.com
TYPICAL PERFORMANCE CHARACTERISTICS
802.3bt Single-Signature Class
Probe and Demotion
802.3bt Dual-Signature
Power-On Sequence
Open Circuit Detection
Inrush Current Limit (Note 16)
Power-On Current Limits
Single-Signature
802.3bt Single-Signature
Power-On Sequence, 4-Pair
802.3bt Single-Signature
Classification and Power-On, 4-Pair
802.3bt Single-Signature
Power-On Sequence, 2-Pair
(RSENSE = 0.1Ω unless otherwise specified.)
DETECTION/
CONNECTION
CHECK
CLASSIFICATION
POWER
ON
VEE
OUT1A
OUT1B
200ms/DIV
–60
–50
–40
–30
–20
–10
0
9101123 G01
CLASSIFICATION
POWER
ON
VEE
CLASS8
OUT1A
OUT1B
50ms/DIV
–60
–50
–40
–30
–20
–10
0
9101123 G02
DETECTION
CLASSIFICATION
POWER
ON
VEE
100ms/DIV
–60
–50
–40
–30
–20
–10
0
9101123 G03
CLASSIFICATION
POWER
ON
VEE
CLASS5
DETECTION/
CONNECTION
CHECK
OUT1A
OUT1B
200ms/DIV
–60
–50
–40
–30
–20
–10
0
9101123 G04
CLASS3
POWER
ON
VEE
CLASS8
PROBE
CLASS 8
CLASS
RESET
DEMOTION
OUT1A
OUT1B
50ms/DIV
–60
–50
–40
–30
–20
–10
0
9101123 G05
AGND
AGND
BACKOFF
50ms/DIV
OUT1A
5V/DIV
OUT1B
5V/DIV
9101123 G06
LIMn = 80h
LIMn = 08h
OUTn – VEE (V)
0
11
22
33
44
55
0
20
40
60
80
100
120
0
200
400
600
800
1000
1200
9101123 G07
AGND – VEE = 55V
CLASS 1–3
CLASS 4–6
CLASS 7
CLASS 8
OUTn – VEE (V)
0
11
22
33
44
55
0
20
40
60
80
100
120
0
200
400
600
800
1000
1200
9101123 G08
AGND – VEE = 55V



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