DC917A - Schematic

1
2
REVISION HISTORY
This circuit is proprietary to Linear Technology and supplied
for use with Linear Technology parts.
Customer Notice: Linear Technology has made a best effort to
design a circuit that meets customer-supplied specifications;
however, it remains the customer's 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.
ECO
REV
DESCRIPTION
3
DATE
PROTO
APPROVED
08/17/05
V+
TP5
C1
+
L1
VAUX+
TP16
1
VPORTN
TP15
D2
4.7uF
3.3uH
C2
100nF
2
SMAJ58A
3
MMSZ5237BS
8.2V
Q1
A
MMBTA42
1
D6
2
150
1 T1
5
2
6
4
7
3
8
1
2
5
6
BAS516
D5
BAS516
4.7uF
RX-
R17
45.3 1%
J2
16
2
3
PGND
PGND
15
NGATE
SENSE
14
4
PVCC
VPORTP
13
5
RCLASS
SIGDISA
12
6
NC
PWRGD
11
POUT
10
7
VPORTN
8
NC
NC
R8 6.8K
C9 1uF -48V
TP8
R11
0.082
1%
HSWAP
R1
C19
4.7K
0.1uF
2
R12
C10
C3
1K
0.047uF
4.7uF
D11
MMSZ5231BS
5.1V
GRN
DDZ9689S
1
BAS516
1
D9
R26
150
1206
100K
1%
D13
V+
2
R13
1
9
R14
6.8K
RJ45
1k
Q3
FMMT3904
4
TO
PHY
1
2
3
6
4
5
7
8
VFB
1
C8
TP4
ITH/RUN
3
TP3
RX+
1
2
TX-
330uF
4V
R25
43
100 ohms
TP2
[email protected]
C5
2
1
SBM1040
D12
2
1
3
U1
LTC4267CDHC
C4
100uF
3
4
TP1
VOUT+
PA1721
Q2
Si3440DV
NGATE
TX+
R6
1
TP6
2
1
1
D3
2
R2
220K
2
A
R3
220K
J1
HFJ11-RP28E-L12
14
13
12
TO
11
10
PSE
9
37V to
8
57V
7
6
RX5
RX+
4
3
TX2
TX+
1
ISO2
NEC PS2911
C13 6.8nF
2
3
VPORTN
R18 39K
2
TP14
1
TP9
3
PWRGD
D10
ZR431L
R19
60.4K
C15
2.2nF
B
B
TP7
VOUT-
SIGNATURE DISABLE
250VAC
TP10
UNLESS OTHERWISE SPECIFIED
DIMENSIONS ARE IN INCHES
TOLERANCE ON ANGLE - - 2 PLACES - - - 3 PLACES - - INTERPRET DIM AND TOL
PER ASME Y14.5M -1994
THIRD ANGLE PROJECTION
CONTRACT NO.
APPROVALS
DRAWN MEI
DATE
04/11/05
TECHNOLOGY
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
TITLE
CHECKED
SCH, LTC4267CDHC, PoE to [email protected] Isolated
APPROVED
ENGINEER
DESIGNER
SIZE CAGE CODE
Custom
DO NOT SCALE DRAWING
1
Wednesday, June 03, 2009
SCALE: NONE
2
DWG NO
REV
DC917A
FILENAME: 917A-3.DSN
SHEET
3
1
OF
1
Similar pages