max5965a Maxim Integrated Products, Inc., max5965a Datasheet - Page 47

• Manufacturer Part Number: max5965a
• Description: High-power, Quad, Monolithic, Pse Controllers For Power Over Ethernet
• Manufacturer: Maxim Integrated Products, Inc.

Figure 14. PoE System Block Diagram
High-Power, Quad, Monolithic, PSE Controllers
V
VCCRTN
CC
SDA
SCL
(3.3V)
OPTIONAL BUFFER
OPTIONAL BUFFER
180Ω
180Ω
______________________________________________________________________________________
3kΩ
ISOLATION
OPTIONAL BUFFER
HPCL063L
180Ω
(REF TO DGND)
1.8V TO 5V
HPCL063L
HPCL063L
3kΩ
3kΩ
-48V
3kΩ
-48VRTN
V
SDAOUT
SDAIN
SCL
DGND
DD
0.5Ω
1%
MAX5965A
MAX5965B
for Power over Ethernet
1 OF 4 CHANNELS
100V, 120mΩ
FDT3612
SOT-223
1N4002
100Ω
MIDSPAN
RESET
-48VOUT
AUTO
SHD_
OSC
INT
1N4448
50kΩ PULLUP
INTERNAL
1kΩ
DATA
INTERNAL PULLDOWN
(MANUAL MODE)
INTERNAL PULLDOWN
(SIGNAL MODE)
OFF
1kΩ
SINE WAVE
100Hz ±10%
PEAK AMPLITUDE 2.2V ±0.1V
VALLEY AMPLITUDE 0.2V ±0.1V
CONNECTOR
0.47μF
100V
RJ–45
V
DD
1
2
3
6
4
5
7
8
4.7kΩ
ON
SMBJ
58CA
0.1μF
2.2MΩ
-48VOUT
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