DC1249A

QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 1249
POE TO 3.3V@3.0A ISOLATED
4
Figure 1. Proper Measurement Equipment Setup
QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 1249
POE TO 3.3V@3.0A ISOLATED
5
[2]
RX+
Co4
100uF
6.3V
OP T
TP16
I M IN
NOTES: UN LESS OTHERWISE SPECIFIED ,
TX+
E1
JP2
1 3
2
L1
3.3uH
R7
4.7K
Q2
FDC2512
3
4 1
2
5
6
VOUT
VCC
57V
TP9
R19
150
VPORTN
VOUT
R3
68
1206
Co1
100uF
6.3V
DISA B L E
3.3 V /3 A
ITH
D6
BAS516
1 2
U1
LTC4267CDHC-3
1
2
3
4
5
6
7
8 9
10
11
12
13
14
15
16
ITH/RUN
PGND
NGATE
PVCC
RCLASS
NC
VPORTN
NC NC
POUT
PWRGD
SIGDISA
VPORTP
SENSE
PGND
VFB
+VOUT
E NA B L E
R16
10
TP14
TP10
C11
150pF
VOUT
FOR NON-ISLATED DESIGN
C12
2200pF
250V
VPORTP
FOR NO-OPTO DESIGN S.
C13
22nF
R2
100K
1206
C4
0.1uF
R4
22
PWR GD
R15 100K
ADD C13 ON TOP OF R11.
R5
680
Co2
100uF
6.3V
C9 1uF
C7
0.33uF
SIGNATUR E DISABLE
R10 80.6k 1%
R9 OPT 1206
RX-
R6 OPT 0805
T1
PA1277NL
4
3 7
5
6
8
1
2
D8
PDZ6.8B
C2
100nF
C3
0.1uF
10V
E4
C10
0.1uF
Q1
MMBTA42
1
32
VCC
C5
22nF
ITH
U4
PS2801-1-L
1
2
4
3
[1]
Vu1
D2
SMAJ58A
12
R1
220K
1206
Co3
100uF
6.3V
[1]
U3
LT4430ES6
1
2
3 4
5
6
VIN
GND
OC FB
COMP
OPTO
Rcs
0.040
1206
to
VOUT
D5
BAS516
VU1
R11
1.5K
PGND
R18
20
1W
1%
Cin1
2.2uF
100V
D7
BAT760
D3
BAS516
1 2
R14
22.1K
[3]
[2]
[3]
J1
HFJ11-RP28E-L12
1
2
3
5
7
8
9
10
13
14
6
11
4
12
FROM
D9
GRN
+
C1
4.7uF
100V
TP15
R17
45.3 1%
R13
5.1K
J2
RJ45
1
2
3
4
5
6
7
8
R12
6.8K
PHY
37V
TX-
-VOUT
C6
47pF
PSE
D1
PDS1040
TO
D4
BAS516
12
VCC

DC1249A

Mfr. #:
Manufacturer:
Analog Devices Inc.
Description:
Power Management IC Development Tools LTC4267-3 Demo Board - IEEE 802.3af PD w
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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