MAX5952AEAX+ Maxim Integrated Products, MAX5952AEAX+ Datasheet - Page 32

• Manufacturer Part Number: MAX5952AEAX+
• Description: IC PSE CNTRLR FOR POE 36-SSOP
• Manufacturer: Maxim Integrated Products
• Type: Power Over Ethernet Controller (PoE)r

Specifications of MAX5952AEAX+

• Applications: Remote Peripherals (Industrial Controls, Cameras, Data Access)
• Internal Switch(s): No
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 36-BSOP (0.300", 7.5mm Width)
• Product: Controllers & Switches
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 1.71 V
• Power Dissipation: 941 mW
• Operating Temperature Range: - 40 C to + 85 C
• Mounting Style: SMD/SMT
• Supply Current: 4.8 mA
• Input Voltage: 60V
• Digital Ic Case Style: SSOP
• No. Of Pins: 36
• Uvlo: 28.5V
• Frequency: 400kHz
• Interface: I2C
• Termination Type: SMD
• Rohs Compliant: Yes
• Filter Terminals: SMD
• Controller Type: Power Over Ethernet PD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Setting DCD_EN_ to 1 enables the DC load disconnect
detection feature (Table 17). Setting ACD_EN_ to 1
enables the AC load disconnect feature. If enabled, the
load disconnect detection starts during power mode
High-Power, Quad, PSE Controller
for Power-Over-Ethernet
The MAX5952 uses two bits for each port to set the mode
of operation. Set the modes according to Table 16a.
A reset sets R12h = AAAAAAAA where A represents
the latched-in state of the AUTO input prior to the reset.
Table 16. Mode Register
Table 16a. Mode Status
Table 17. Load Disconnect Detection Enable Register
32
P4_M1
P4_M0
P3_M1
P3_M0
P2_M1
P2_M0
P1_M1
P1_M0
ACD_EN4
ACD_EN3
ACD_EN2
ACD_EN1
DCD_EN4
DCD_EN3
DCD_EN2
DCD_EN1
______________________________________________________________________________________
MODE
SYMBOL
SYMBOL
00
01
10
11
ADDRESS = 12h
ADDRESS = 13h
Shutdown
Manual
Semi-auto
Auto
BIT
BIT
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
DESCRIPTION
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
MODE[1] for port 4
MODE[0] for port 4
MODE[1] for port 3
MODE[0] for port 3
MODE[1] for port 2
MODE[0] for port 2
MODE[1] for port 1
MODE[0] for port 1
Enable AC disconnect detection on port 4
Enable AC disconnect detection on port 3
Enable AC disconnect detection on port 2
Enable AC disconnect detection on port 1
Enable DC disconnect detection on port 4
Enable DC disconnect detection on port 3
Enable DC disconnect detection on port 2
Enable DC disconnect detection on port 1
and after startup when the corresponding PGOOD_ bit
in register R10h (Table 14) goes high. A reset sets
R13h = 0000AAAA where A represents the latched-in
state of the AUTO input prior to the reset.
Use software to change the mode of operation.
Software resets of ports (RESET_P_ bit, Table 23) do
not affect the mode register.
DESCRIPTION
DESCRIPTION