参数资料
型号: DC859A
厂商: Linear Technology
文件页数: 18/32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
25
4267fc
Figure 16. Auxiliary Power Source for PD
APPLICATIO S I FOR ATIO
WU
UU
RX
6
RX+
3
TX
2
TX+
RJ45
T1
1
7
8
5
4
SPARE
+
SPARE+
ISOLATED
WALL
TRANSFORMER
TO PHY
VPORTP
OPTION 1: AUXILIARY POWER INSERTED BEFORE LTC4267 PD
OPTION 2: AUXILIARY POWER INSERTED AFTER LTC4267 PD WITH SIGNATURE DISABLED
VPORTN POUT
PGND
38V TO 57V
D8
S1B
D3
SMAJ58A
TVS
C1
PGND
C14
0.1F
100V
RX
6
RX+
3
TX
2
TX+
RJ45
T1
1
7
8
5
4
SPARE
+
SPARE+
ISOLATED
WALL
TRANSFORMER
TO PHY
VPORTP
SIGDISA
LTC4267
BR2
HD01
~
+
BR1
HD01
~
+
BR1
HD01
~
+
VPORTN POUT
4267 F16
D10
S1B
D3
SMAJ58A
TVS
C1
100k
D9
S1B
OPTION 3: AUXILIARY POWER APPLIED TO LTC4267 PD AND SWITCHING REGULATOR
RX
6
RX+
3
TX
2
TX+
RJ45
T1
1
7
8
5
4
SPARE
+
SPARE+
ISOLATED
WALL
TRANSFORMER
TO PHY
38V TO 57V
VPORTP
LTC4267
VPORTN POUT
D10
S1B
D3
SMAJ58A
TVS
C1
C14
0.1F
100V
C14
0.1F
100V
BR2
HD01
~
+
BR1
HD01
~
+
BR2
HD01
~
+
100k
BSS63
RSTART
CPVCC
RSTART
CPVCC
RSTART
CPVCC
PGND
PVCC
PGND
PVCC
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