High-Power, Quad, Monolithic, PSE Controllers
for Power over Ethernet
10   ______________________________________________________________________________________
Typical Operating Characteristics (continued)
(V
EE
= -48V, V
DD
= +3.3V, V
AUTO
= V
AGND
= V
DGND
= 0V, RESET = SHD_ = unconnected, R
SENSE_
= 0.5&, IVEE = 00, ICUT = 000,
T
A
= +25癈, all registers = default setting, unless otherwise noted.)
RESET TO OUT TURN-OFF DELAY
MAX5965A toc16
0V
0A
I
OUT_
200mA/div
V
GATE_
5V/div
V
EE
RESET
2V/div
1
iv
ZERO-CURRENT DETECTION WAVEFORM
MAX5965A toc17
100ms/div
INT
2V/div
I
OUT_
200mA/div
V
GATE_
10V/div
0V
0V
0A
V
EE
V
AGND
 - V
OUT
20V/div
OVERCURRENT RESTART DELAY
MAX5965A toc18
400ms/div
I
OUT_
200mA/div
V
GATE_
10V/div
0V
0A
V
EE
V
AGND
 - V
OUT
20V/div
STARTUP WITH VALID PD
(25kI AND 0.1礔)
MAX5965A toc19
I
OUT_
100mA/div
V
AGND
- V
OUT_
20V/div
V
GATE_
5V/div
0V
0A
V
EE
100祍/div
DETECTION WITH INVALID PD
(25kI AND 10礔)
MAX5965A toc20
I
OUT_
1mA/div
0V
0A
V
AGND
- V
OUT_
20V/div
V
GATE_
10V/div
V
EE
400ms/div
DETECTION WITH INVALID PD (15k&)
MAX5965A toc21
100ms/div
I
OUT_
1mA/div
0A
0V
V
AGND
 - V
OUT
5V/div
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