Typical operating characteristics (continued) – Rainbow Electronics MAX5965B User Manual
Page 11
MAX5965A/MAX5965B
High-Power, Quad, Monolithic, PSE Controllers
for Power over Ethernet
______________________________________________________________________________________
11
DETECTION WITH INVALID PD (33k
Ω)
MAX5965A toc22
100ms/div
I
OUT
1mA/div
0A
0V
(AGND - V
OUT
)
5V/div
STARTUP IN MIDSPAN MODE
WITH VALID PD (25kI AND 0.1µF)
MAX5965A toc23
I
OUT
100mA/div
V
AGND
- V
OUT
20V/div
V
GATE
5V/div
0V
0A
V
EE
DETECTION WITH MIDSPAN MODE
WITH INVALID PD (15k
Ω)
MAX5965A toc24
400ms/div
I
OUT
1mA/div
0A
0V
(AGND - V
OUT
)
5V/div
V
GATE_
10V/div
V
EE
DETECTION WITH MIDSPAN MODE
WITH INVALID PD (33k
Ω)
MAX5965A toc25
400ms/div
I
OUT
1mA/div
0A
0V
(AGND - V
OUT
)
5V/div
V
GATE_
10V/div
V
EE
OUTPUT SHORTED
MAX5965A toc26
I
OUT
1mA/div
V
AGND
- V
OUT
5V/div
V
GATE
10V/div
0V
0A
V
EE
DETECTION WITH INVALID PD (OPEN CIRCUIT,
USING TYPICAL OPERATING CIRCUIT 1)
MAX5965A toc27
40ms/div
I
OUT
1mA/div
0A
0V
(AGND - V
OUT
)
5V/div
V
GATE_
10V/div
V
EE
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.)