MAX5941 Maxim, MAX5941 Datasheet - Page 21

• Manufacturer Part Number: MAX5941
• Description: IEEE 802.3af-Compliant Power-Over-Ethernet Interface/PWM Controller for Power Devices
• Manufacturer: Maxim

Figure 7. PD with Power-Over-Ethernet (Power Is Provided by Either the Signal Pairs or the Spare Pairs)
SMBJ58CA
-48V
GND
* OPTIONAL.
* R1 AND R2 ARE OPTIONAL AND WHEN USED, THEY MUST TOTAL TO 25.5kΩ AND REPLACE THE 25.5kΩ RESISTOR.
60V
IEEE 802.3af-Compliant Power-Over-Ethernet
Interface/PWM Controller for Power Devices
R
25.5kΩ
68nF
DISC
*D1
*D2
RJ-45
______________________________________________________________________________________
=
POWER OVER
SPARE PAIRS
**R1
**R2
1
2
3
6
4
5
7
8
RCL
SIGNAL PAIRS
POWER-OVER
V+
V
V
UVLO
RCL
GATE
V
DD
CC
EE
MAX5941_
*C
GND
GATE
RX
TX
SS_SHDN
PGOOD
PGOOD
NDRV
OPTO
OUT
CS
V-
V
CC
VREG
PHY
OPTOCOUPLER
DF025A
+
-
TL431
+
-
DF025A
-48V
GND
VREG
21