MAX5952 MAXIM [Maxim Integrated Products], MAX5952 Datasheet - Page 11

• Manufacturer Part Number: MAX5952
• Description: High-Power, Quad, PSE Controller for Power-Over-Ethernet
• Manufacturer: MAXIM [Maxim Integrated Products]

(V
T
A
EE
= +25°C, all registers = default setting, unless otherwise noted.)
= -48V, V
V
V
0V
0A
0A
0A
EE
EE
DETECTION WITH INVALID PD (33kΩ)
DETECTION WITH OUTPUT SHORTED
DD
DETECTION WITH MIDSPAN MODE
= +3.3V, AUTO = AGND = DGND = 0V, RESET = SHD_ = unconnected, R
WITH INVALID PD (15kΩ)
______________________________________________________________________________________
100ms/div
400ms/div
40ms/div
MAX5952 toc26
MAX5952 toc22
MAX5952 toc24
High-Power, Quad, PSE Controller
I
1mA/div
V
10V/div
(AGND - V
5V/div
(AGND - V
5V/div
0V
I
1mA/div
(AGND - V
5V/div
0V
V
10V/div
I
1mA/div
OUT
OUT
OUT
GATE_
GATE_
Typical Operating Characteristics (continued)
OUT
OUT
OUT
)
)
)
for Power-Over-Ethernet
V
V
V
0V
0A
0A
0V
0A
EE
EE
EE
DETECTION WITH INVALID PD (OPEN CIRCUIT,
USING TYPICAL OPERATING CIRCUIT 1)
WITH VALID PD (25kΩ AND 0.1μF)
DETECTION WITH MIDSPAN MODE
STARTUP IN MIDSPAN MODE
WITH INVALID PD (33kΩ)
SENSE
100ms/div
400ms/div
40ms/div
= 0.5Ω, IVEE = 00, ICUT = 000,
MAX5952 toc23
MAX5952 toc25
MAX5952 toc27
(AGND - V
20V/div
V
5V/div
(AGND - V
5V/div
0V
I
1mA/div
V
10V/div
I
100mA/div
OUT
(AGND - V
5V/div
I
1mA/div
V
10V/div
OUT
GATE_
GATE_
OUT
GATE_
OUT
OUT
OUT
)
)
)
11