LTC4267 LINER [Linear Technology], LTC4267 Datasheet - Page 18

• Manufacturer Part Number: LTC4267
• Description: Power over Ethernet IEEE 802.3af PD Interface with Integrated Switching Regulator
• Manufacturer: LINER [Linear Technology]

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