High-Power, Quad, Monolithic, PSE Controllers
for Power over Ethernet
______________________________________________________________________________________ 47
MAX5965A
MAX5965B
-48V
GATE_
INTERNAL PULLDOWN
(MANUAL MODE)
100&
-48VRTN
FDT3612
100V, 120m&
SOT-223
SENSE_
V
EE
OUT_
OFF
ON
DET_
SDAIN
SDAOUT
SCL
DGND
V
DD
A0
A1
A2
A3
OSC
AUTO
MIDSPAN
AGND
INTERNAL PULLDOWN
(SIGNAL MODE)
0.5&
1%
1N4448
1k&
1 OF 4 CHANNELS
1.8V TO 5V,
(REF TO DGND)
INT
RESET
3k&
3k&
180&
180&
180&
OPTIONAL BUFFER
INTERNAL
50k& PULLUP
4.7k&
1k&
V
DD
1N4002
HPCL063L
OPTIONAL BUFFER
OPTIONAL BUFFER
HPCL063L
HPCL063L
VCCRTN
V
CC
(3.3V)
SCL
SDA
3k&
3k&
ISOLATION
0.47礔
100V
SHD_
SINE WAVE
100Hz ?0%
PEAK AMPLITUDE 2.2V ?.1V
VALLEY AMPLITUDE 0.2V ?.1V
SMBJ
58CA
0.1礔
2.2M&
-48VOUT
8
7
5
4
6
3
2
1
-48VOUT
0.1礔
0.1礔
0.1礔
0.1礔
75&
75&
75&
75&
1000pF
250VAC
24
22
21
19
23
20
RX1+
RX1-
TX1+
TX1-
RXT1
TXCT1
RD1+
RD1-
TD1+*
*USE HALO TG111-HRPE40NY OR
PULSE HX6015NL FOR HIGH POWER
TD1-
1
3
4
5
PHY
1/2 OF
H2005A
RJ45
CONNECTOR
Applications Information
Figure 13. PoE System Diagram with LAN Transformer
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