Rainbow Electronics MAX5945 - Manual (Page 9)

MAX5945
Quad Network Power Controller
for Power-Over-LAN
_______________________________________________________________________________________ 9
OVERCURRENT RESTART DELAY
MAX5945 toc18
400ms/div
0V
0A
I
OUT
200mA/div
GATE
10V/div
V
EE
(AGND - OUT)
20V/div
STARTUP WITH VALID PD
(25k Ω AND 0.1µF)
MAX5945 toc19
100ms/div
0V
I OUT
100mA/div
GATE_
V EE
(AGND - OUT)
20V/div
DETECTION WITH INVALID PD
(25k Ω AND 10µF)
MAX5945 toc20
40ms/div
0V
I OUT
1mA/div
(AGND - OUT)
2V/div
DETECTION WITH INVALID PD (15k Ω)
MAX5945 toc21
100ms/div
0V
0A
I OUT
1mA/div
(AGND - OUT)
5V/div
DETECTION WITH INVALID PD (33k Ω)
MAX5945 toc22
100ms/div
0V
0A
I
OUT
1mA/div
(AGND - OUT)
5V/div
STARTUP IN MIDSPAN MODE
WITH VALID PD (25k Ω AND 0.1µF)
MAX5945 toc23
100ms/div
0V
0A
I OUT
100mA/div
V EE
GATE_
10V/div
(AGND - OUT)
20V/div
Typical Operating Characteristics (continued)
(V
EE
= -48V, V
DD
= +3.3V, AUTO = AGND = DGND = 0V, RESET = SHD_ = unconnected, R
SENSE
= 0.5 Ω, all registers = default setting,
T A = +25°C, unless otherwise noted.)