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LTC4266IGW-PBF Просмотр технического описания (PDF) - Linear Technology
Номер в каталоге
Компоненты Описание
производитель
LTC4266IGW-PBF
Quad IEEE 802.3at Power over Ethernet Controller
Linear Technology
LTC4266IGW-PBF Datasheet PDF : 30 Pages
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LTC4266
TEST TIMING DIAGRAMS
V
PORTn
t
DET
FORCED-CURRENT
0V
V
OC
PD
CONNECTED
CLASSIFICATION
FORCED-
VOLTAGE
V
MARK
V
CLASS
t
CLE1
t
ME1
t
ME2
t
CLE2
t
CLE3
15.5V
20.5V
t
DETDLY
INT
t
PON
V
EE
4266 F01
Figure 1. Detect, Class and Turn-On Timing in AUTO Pin or Semi-Auto Modes
V
SENSE
n
TO V
EE
V
LIM
0V
INT
V
CUT
t
START
, t
ICUT
4266 F02
Figure 2. Current Limit Timing
V
SENSE
n
TO V
EE
V
MIN
INT
t
MPS
t
DIS
4266 F03
Figure 3. DC Disconnect Timing
V
GATEn
MSD
or
SHDN
n
t
MSD
t
SHDN
V
EE
4266 F04
t
3
t
4
t
r
t
f
SCL
t
2
t
5
t
6
t
7
SDA
t
1
t
8
4266 F05
Figure 4. Shut Down Delay Timing
Figure 5. I
2
C Interface Timing
4266fb
10
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