LTC4269-1 View Datasheet(PDF) - Linear Technology
Part Name
Description
Manufacturer
LTC4269-1 Datasheet PDF : 30 Pages
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LTC4266
TYPICAL APPLICATION
ISOLATED
3.3V
0.1µF
ISOLATED
GND
VDD CPU
SCL
SDA
200Ω
U2
U1
200Ω
HCPL-063L
U3 200Ω
INTERRUPT
GND CPU
0.1µF
HCPL-063L
DTSS: DIODES INC SMAJ58A
Q1: FAIRCHILD IRFM120A OR PHILIPS PHT6NQ10T
U1: FAIRCHILD NC7WZ17
U2, U3: AGILENT HCPL-063L
FB1, FB2:TDK MPZ2012S601A
T1: PULSE H6096NL OR COILCRAFT ETH1-230LD
200Ω
DGND AGND
0.22µF
2k
VDD
100V
X7R
SCL
1/4
SDAIN LTC4266
SDAOUT
INT
2k
VEE SENSE GATE OUT
1µF
100V
X7R
RS
0.25Ω
Q1
SMAJ58A
–48V
S1B
ISOLATED
T1
•
•
•
•
PHY
(NETWORK
PHYSICAL
LAYER
CHIP)
•
•
•
•
FB1
FB2
S1B
0.01µF
200V
75Ω
RJ45
CONNECTOR
1
2
0.01µF
200V
3
75Ω
4
5
6
7
8
0.01µF
200V
75Ω
0.01µF
200V
75Ω
1000pF
2000V
4266 F22
Figure 22. One Complete Isolated Powered Ethernet Port
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30 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com
COMMENTS
200kHz Operation, Adjustable Slope Compensation
DC Disconnect Sensing Only
Internal FET Switch
With Internal FET Switch
100V, 1A Internal Switch, 2-Event Classification Recognition
Internal 100V, 400mA Switch, Dual Inrush Current, Programmable Class
No Opto-coupler Required
2-Event Classification, Programmable Classification, Synchronous No-Opto
Flyback Controller, 50kHz to 250kHz
2-Event Classification, Programmable Classification, Synchronous Forward
Controller, 100kHz to 500kHz
4266fb
LT 0311 REV B • PRINTED IN USA
LINEAR TECHNOLOGY CORPORATION 2009
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