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LTC4258 Datasheet(PDF) 5 Page - Linear Technology

Part # LTC4258
Description  Quad IEEE 802.3af Power over Ethernet Controller with Integrated Detection
PDF  28 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC4258 Datasheet(HTML) 5 Page - Linear Technology

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LTC4258
5
4258p
Figure 3. Current Limit Timing
Figure 4. DC Disconnect Timing
TEST TI I G
Figure 5. I2C Interface Timing
Figure 2. Detect, Class and Turn-On Timing in Auto or Semiauto Modes
SCL
SDA
t1
t2
t3
tr
tf
t5
t6
t7
t8
t4
4258 F05
0V
VPORTn
VGATEn
INT
PD
INSERTED
VEE
VCLASS
VT
PORT
TURN ON
(AUTO MODE)
tCLSDLY
tCLASS
4258 F02
tDETDLY
tDET
tPON
VLIM
VCUT
0V
VSENSEn TO VEE
INT
4258 F03
tSTART, tICUT
VMIN
VSENSEn
TO VEE
INT
tDIS
tVMIN
4258 F04



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