Typical operating characteristics (continued) – Rainbow Electronics MAX5945 User Manual
Page 8
MAX5945
Quad Network Power Controller
for Power-Over-LAN
8
_______________________________________________________________________________________
OVERCURRENT TIMEOUT
(R
LOAD
= 240
Ω TO 57Ω)
MAX5945 toc12
20ms/div
0V
I
OUT
200mA/div
V
EE
GATE 10V/div
0A
INT
2V/div
(AGND - OUT)
20V/div
0V
OVERCURRENT RESPONSE WAVEFORM
(R
LOAD
= 240
Ω TO 57Ω)
MAX5945 toc13
400
µs/div
0V
I
OUT
200mA/div
GATE
10V/div
V
EE
0A
INT
2V/div
(AGND - OUT)
20V/div
0V
SHORT-CIRCUIT RESPONSE TIME
MAX5945 toc14
20ms/div
0V
I
OUT
250mA/div
GATE
10V/div
V
EE
0A
(AGND - OUT)
20V/div
SHORT-CIRCUIT RESPONSE TIME
MAX5945 toc15
4
µs/div
0V
I
OUT
5A/div
GATE
10V/div
V
EE
0A
(AGND - OUT)
20V/div
RESET TO OUTPUT TURN-OFF DELAY
MAX5945 toc16
100
µs/div
0V
I
OUT
200mA/div
GATE
10V/div
V
EE
0A
RESET
(AGND - OUT)
20V/div
ZERO-CURRENT DETECTION WAVEFORM
MAX5945 toc17
100ms/div
0V
I
OUT
200mA/div
GATE
10V/div
INT
5V/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.)