Datasheet

MAX5942A/MAX5942B
IEEE 802.3af Power-Over-Ethernet
Interface/PWM Controller for Power Devices
22 ______________________________________________________________________________________
**R1 AND R2 ARE OPTIONAL AND WHEN USED, THEY MUST TOTAL TO 25.5kΩ AND REPLACE THE 25.5kΩ RESISTOR.
*OPTIONAL.
NDRVGNDV+
V
DD
V
CC
60V
GND
-48V
POWER-SUPPLY CIRCUIT 2
POWER-SUPPLY CIRCUIT 1
RCL
**R2
R
CL
**R1
UVLO
GATE
V
EE
C
GATE
*
CS
V-
SS_SHDN
PGOOD
PGOOD
FB
OUT
VREG1
MAX5942
R
DISC
=
25.5kΩ
68nF
NDRVV+
V+
V
DD
V
CC
CS
GND
FB
VREG2
SS_SHDN
MAX5019
Figure 9. Power-Supply Circuit 1 Enabling PWM Controller of a Second Power Circuit