MAX5940BESA+ Maxim Integrated Products, MAX5940BESA+ Datasheet - Page 10
![IC IEEE 802.3AF PD INTFC 8-SOIC](/photos/1/39/13902/8-soic_21-0042b_sml.jpg)
MAX5940BESA+
Manufacturer Part Number
MAX5940BESA+
Description
IC IEEE 802.3AF PD INTFC 8-SOIC
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX5940BESA.pdf
(15 pages)
Specifications of MAX5940BESA+
Controller Type
Powered Device Interface Controller (PD)
Interface
IEEE 802.3af
Voltage - Supply
48V
Current - Supply
1mA
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Input Voltage
80V
Output Current
500mA
Supply Current
400µA
Digital Ic Case Style
SOIC
No. Of Pins
8
Uvlo
38.6V
Operating Temperature Range
-40°C To +85°C
Filter Terminals
SMD
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
IEEE 802.3af PD Interface Controller
For Power-Over-Ethernet
Figure 4. PD with Power-Over-Ethernet (Power is Provided by Either the Signal Pairs or the Spare Pairs)
10
GND
-48V
______________________________________________________________________________________
*R1 AND R2 ARE OPTIONAL AND WHEN USED, THEY MUST TOTAL 25.5kΩ AND REPLACE THE 25.5kΩ RESISTOR.
60V
RJ-45
25.5kΩ
POWER-OVER
68nF
SPAIR PAIRS
R
DISC
3
6
1
2
4
5
7
8
R2*
R1*
POWER-OVER
SIGNAL PAIRS
R
CL
1
2
3
4
RX
TX
GATE
RCLASS
UVLO
V
EE
MAX5940B
MAX5940D
PGOOD
PGOOD
GND
OUT
8
7
6
5
V
PHY
Typical Application Circuits
REG
C
GATE
C
OUT
+
-
DC-DC CONVERTER
GND
V+
MAX5014
SS_SHDN
Application Circuit 1
+
-
LOAD
V
REG
-48V
GND