Datasheet

LTC4267
18
4267fc
APPLICATIO S I FOR ATIO
WUUU
Figure 9. PD Front End with Isolation Transformer, Diode Bridges and Capacitor
16
14
15
1
3
2
RX
6
RX
+
3
TX
2
TX
+
RJ45
T1
PULSE H2019
4267 F09
1
7
8
5
4
11
9
10
6
8
7
D3
SMAJ58A
TVS
BR1
HD01
BR2
HD01
TO PHY
LTC4267
V
PORTN
SPARE
SPARE
+
C14
0.1µF
100V
V
PORTP
1
3
2
RX
SPARE
6
RX
+
3
TX
2
TX
+
J2
IN
FROM
PSE
T1
RJ45
1
7
8
5
4
6
8
7
TXOUT
+
OUT
TO PHY
TXOUT
SPARE
+
RXOUT
+
RXOUT
16
14
15
11
9
10
NOTES: UNLESS OTHERWISE SPECIFIED
1. ALL RESISTORS ARE 5%
2. SELECT R
CLASS
FOR CLASS 1-4 OPERATION. REFER
TO DATA SHEET APPLICATIONS INFORMATION SECTION
C2: AVX 1808GC102MAT
D9 TO D12, D14 TO D17: DIODES INC., B1100
T1: PULSE H2019
R
CLASS
1%
R
CLASS
V
PORTN
D13
MMSD4148
C11
0.1µF
100V
D6
SMAJ58A
R30
75
C24
0.01µF
200V
R31
75
C25
0.01µF
200V
R1
75
C7
0.01µF
200V
R2
75
C3
0.01µF
200V
C2
1000pF
2kV
D10
B1100
D12
B1100
D9
B1100
D11
B1100
D17
B1100
D16
B1100
D15
B1100
D14
B1100
V
PORTP
LTC4267
4267 F10
Figure 10. PD Front End with Isolation Transformer, 2nd Schottky Diode Bridge