MAX5942BCSE Maxim Integrated, MAX5942BCSE Datasheet - Page 22

• Manufacturer Part Number: MAX5942BCSE
• Description: Power Switch ICs - POE / LAN
• Manufacturer: Maxim Integrated

IEEE 802.3af Power-Over-Ethernet
Interface/PWM Controller for Power Devices
22
Figure 9. Power-Supply Circuit 1 Enabling PWM Controller of a Second Power Circuit
______________________________________________________________________________________
POWER-SUPPLY CIRCUIT 1
POWER-SUPPLY CIRCUIT 2
-48V
GND
**R1 AND R2 ARE OPTIONAL AND WHEN USED, THEY MUST TOTAL TO 25.5kΩ AND REPLACE THE 25.5kΩ RESISTOR.
*OPTIONAL.
60V
68nF
R
25.5kΩ
DISC
=
**R1
**R2
R
CL
V+
V+
V
V
SS_SHDN
V+
V
V
UVLO
RCL
GATE
V
DD
CC
DD
CC
EE
MAX5019
MAX5942
C
GND
GATE
*
SS_SHDN
PGOOD
PGOOD
NDRV
NDRV
GND
OUT
CS
CS
FB
FB
V-
VREG1
VREG2