Datasheet

MAX5965A/MAX5965B
High-Power, Quad, Monolithic, PSE Controllers
for Power over Ethernet
12 ______________________________________________________________________________________
DETECTION WITH INVALID PD (OPEN CIRCUIT,
USING TYPICAL OPERATING CIRCUIT 2)
MAX5965A toc28
40ms/div
I
OUT_
1mA/div
0A
0V
V
AGND
- V
OUT
5V/div
V
GATE_
10V/div
V
EE
STARTUP WITH DIFFERENT
PD CLASSES
MAX5965A toc29
I
OUT_
20mA/div
0V
0A
V
AGND
- V
OUT
_
5V/div
CLASS 1
CLASS 2
CLASS 3
CLASS 4
CLASS 5
40ms/div
2-EVENT CLASSIFICATION
WITH A CLASS 4 PD
MAX5965A toc30
I
OUT_
20mA/div
V
AGND
- V
OUT
_
5V/div
V
GATE_
10V/div
0V
0A
V
EE
40ms/div
Typical Operating Characteristics (continued)
(V
EE
= -48V, V
DD
= +3.3V, V
AUTO
= V
AGND
= V
DGND
= 0V, RESET = SHD_ = unconnected, R
SENSE_
= 0.5Ω, IVEE = 00, ICUT = 000,
T
A
= +25°C, all registers = default setting, unless otherwise noted.)