Datasheet
QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 1366A
IEEE802.3AF/AT POWER-OVER-ETHERNET POWER SOURCING EQUIPMENT CONTROLLER
LTC4266
8
R4 N2 7 5
RJ45
J4D
1
2
3
4
5
6
7
8
IN
FROM
PHY
L8 BEAD
R2P1 75
C56 0.01uF 200V C53 1000pF 2kV
C45 0.01uF 200V
TP15
CHASSIS GND
RJ45
J5D
1
2
3
4
5
6
7
8
R4P1 75
OUT1
T3 ETH1-230LD
6
4
5
11
10
9
2
3
1
12
13
14
C38 0.01uF 200V
RJ45
J4C
1
2
3
4
5
6
7
8
R1 N2 7 5
R4 N1 7 5
R3 N2 7 5
R4 P2 75
R3 N1 7 5
RJ45
J4A
1
2
3
4
5
6
7
8
R1 P1 75
PROD
5
12/08/08
REVISION HISTORY
DESCRIPTION DATE APPROVEDECO REV
L1 BEAD
D
R3 P2 75
C20 0.01uF 200V
OUT4
RJ45
J4B
1
2
3
4
5
6
7
8
L7 BEAD
Customer Notice:
Linear Technology has made a best effort to
design a circuit that meets customer-supplied specifications;
however, it remains the customers responsibility to verify proper
and reliable operation in the actual application, Component
substitution and printed circuit board layout may significantly
affect circuit performance or reliability. Contact Linear
Applications Engineering for assistance.
This circuit is proprietary to Linear Technology and supplied
for use with Linear Technology parts.
C
OUT2
C27 0.01uF 200V
C31 0.01uF 200V
C17 1000pF 2kV
C4 9
1000pF
2kV
B
T4 ETH1-230LD
6
4
5
11
10
9
2
3
1
12
13
14
C52 0.01uF 200V
R1 P2 75
C42 1000pF 2kV
SHIELD
A
RJ45
J5A
1
2
3
4
5
6
7
8
RJ45
J5C
1
2
3
4
5
6
7
8
C40
1000pF
2kV
SHIELD
OUT3
PORT 4
PORT 3
R1 N1 7 5
J5
C60 0.01uF 200V
R2 P2 75
L5 BEAD
PORT 2
T1 ETH1-230LD
6
4
5
11
10
9
2
3
1
12
13
14
J4
5
DC1366A
Fr iday, Januar y 30, 2009
22
SCH, LTC4266CUHF, IEEE802.3AT PoE QUAD PSE
1366a-5.dsn
mi 11/12/07
CONTROLLER
SIZE
SCALE:
CAGE CODE
DWG NO
REV
S HEET
OF
FILENAME:
TITLE
CONTRACT NO.
A PPRO V A L S
DA TE
DRAWN
CHECKED
APPROVED
ENGINEER
DESIGNER
TECHNOLOGY
1630 Mc Car thy Blvd.
Mi lpi tas, CA 95035
Phone: (408) 432-190 0
Fax: (408)434-0507
L3 BEAD
RJ45
J5B
1
2
3
4
5
6
7
8
T2 ETH1-230LD
6
4
5
11
10
9
2
3
1
12
13
14
R2N1 75
C3 4
1000pF
2kV
R3 P1 7 5
PORT 1
L6 BEAD
C1 9
1000pF
2kV
L2 BEAD
L4 BEAD
R2 N2 7 5
C28 1000pF 2kV
OUT
TO
PD