MAX5945 MAXIM [Maxim Integrated Products], MAX5945 Datasheet - Page 10

• Manufacturer Part Number: MAX5945
• Description: Quad Network Power Controller for Power-Over-LAN
• Manufacturer: MAXIM [Maxim Integrated Products]

Quad Network Power Controller
for Power-Over-LAN
10
(V
T
A
EE
= +25°C, unless otherwise noted.)
= -48V, V
______________________________________________________________________________________
DD
= +3.3V, AUTO = AGND = DGND = 0V, RESET = SHD_ = unconnected, R
DETECTION WITH INVALID PD (OPEN CIRCUIT,
USING TYPICAL OPERATING CIRCUIT 2)
DETECTION WITH OUTPUT SHORTED
DETECTION WITH MIDSPAN MODE
WITH INVALID PD (15kΩ)
400ms/div
100ms/div
40ms/div
Typical Operating Characteristics (continued)
MAX5945 toc24
MAX5945 toc26
MAX5945 toc28
(AGND - OUT)
5V/div
(AGND - OUT)
5V/div
0V
I
1mA/div
0A
GATE_
10V/div
V
0V
I
1mA/div
0A
GATE_
10V/div
V
(AGND - OUT)
5V/div
I
2mA/div
GATE_
10V/div
0V
OUT
OUT
OUT
EE
EE
DETECTION WITH INVALID PD (OPEN CIRCUIT,
STARTUP WITH DIFFERENT PD CLASSES
USING TYPICAL OPERATING CIRCUIT 1)
DETECTION WITH MIDSPAN MODE
WITH INVALID PD (33kΩ)
100ms/div
400ms/div
40ms/div
SENSE
CLASS4
CLASS3
CLASS2
CLASS1
CLASS0
= 0.5Ω, all registers = default setting,
MAX5945 toc27
MAX5945 toc29
MAX5945 toc25
(AGND - OUT)
5V/div
0V
I
1mA/div
0A
GATE_
10V/div
V
(AGND - OUT)
5V/div
0V
I
1mA/div
0A
GATE_
10V/div
V
OUT
(AGND - OUT)
5V/div
I
10mA/div
OUT
OUT
EE
EE