Rainbow Electronics MAX5940B - Manual (Page 14)

MAX5940A/MAX5940B
IEEE 802.3af PD Interface Controller
For Power-Over-Ethernet
14 ______________________________________________________________________________________
PGOOD
OUT V EE
1
2
8
7
GND
N.C. RCLASS
GATE
N.C.
SO
TOP VIEW
3
4
6
5
MAX5940A
PGOOD
OUT V EE
1
2
8
7
GND
PGOOD RCLASS
GATE
UVLO
SO
3
4
6
5
MAX5940B
Pin Configurations
R1**
60V 68nF
UVLO GND
V EE
GATE
RCLASS PGOOD
PGOOD
DC-DC CONVERTER
GND
-48V
R2** R CL
*OPTIONAL.
**R1 AND R2 ARE OPTIONAL AND WHEN USED, THEY MUST TOTAL 25.5k Ω AND REPLACE THE 25.5kΩ RESISTOR.
V REG
OUT
1
2
3
4 5
6
7
8
C
OUT
C GATE
R DISC
25.5k Ω
MAX5940B
D1*
D2*
GND
V+
SS_SHDN
MAX5014
LOAD
Typical Operating Circuits (continued)
Chip Information
TRANSISTOR COUNT: 3,643
PROCESS: BiCMOS