参数资料
型号: DC859A
厂商: Linear Technology
文件页数: 10/32页
文件大小: 0K
描述: EVAL BOARD FOR LTC4267
设计资源: DC859A Design File
DC859A Schematic
标准包装: 1
主要目的: 电源管理,以太网供电(POE)
嵌入式:
已用 IC / 零件: LTC4267
已供物品:
LTC4267
18
4267fc
APPLICATIO S I FOR ATIO
WU
UU
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
VPORTN
SPARE
SPARE+
C14
0.1F
100V
VPORTP
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 RCLASS 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
RCLASS
1%
RCLASS
VPORTN
D13
MMSD4148
C11
0.1F
100V
D6
SMAJ58A
R30
75
C24
0.01F
200V
R31
75
C25
0.01F
200V
R1
75
C7
0.01F
200V
R2
75
C3
0.01F
200V
C2
1000pF
2kV
D10
B1100
D12
B1100
D9
B1100
D11
B1100
D17
B1100
D16
B1100
D15
B1100
D14
B1100
VPORTP
LTC4267
4267 F10
Figure 10. PD Front End with Isolation Transformer, 2nd Schottky Diode Bridge
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