max5965a Maxim Integrated Products, Inc., max5965a Datasheet - Page 46

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

High-Power, Quad, Monolithic, PSE Controllers
for Power over Ethernet
Figure 13. PoE System Block Diagram
46
*USE HALO TG111-HRPE40NY OR
PULSE HX6015NL FOR HIGH POWER
______________________________________________________________________________________
V
VCCRTN
CC
SDA
SCL
(3.3V)
OPTIONAL BUFFER
OPTIONAL BUFFER
180Ω
180Ω
3kΩ
ISOLATION
OPTIONAL BUFFER
HPCL063L
180Ω
(REF TO DGND)
PHY
1.8V TO 5V,
HPCL063L
HPCL063L
3kΩ
3kΩ
-48V
3kΩ
1
3
4
5
RD1+
RD1-
TD1+*
TD1-
-48VRTN
H2005A
1/2 OF
V
SDAOUT
SDAIN
SCL
DGND
DD
TXCT1
RX1+
TX1+
RXT1
RX1-
TX1-
0.5Ω
1%
24
22
21
19
23
20
0.1μF
0.1μF
MAX5965A
MAX5965B
1 OF 4 CHANNELS
100V, 120mΩ
-48VOUT
FDT3612
SOT-223
75Ω
75Ω
1N4002
250VAC
1000pF
100Ω
MIDSPAN
RESET
AUTO
SHD_
OSC
Applications Information
INT
1N4448
75Ω
75Ω
50kΩ PULLUP
INTERNAL
1kΩ
INTERNAL PULLDOWN
(MANUAL MODE)
INTERNAL PULLDOWN
(SIGNAL MODE)
0.1μF
0.1μF
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