Typical operating characteristics (continued) – Rainbow Electronics MAX5971А User Manual
Page 7
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MAX5971A
Single-Port, 40W, IEEE 802.3af/802.3at PSE
Controller with Integrated MOSFET
Typical Operating Characteristics (continued)
(T
A
= +25°C, unless otherwise noted.)
ZERO-CURRENT DETECTION WAVEFORM
WITH AC DISCONNECT ENABLED
MAX5971A toc13
100ms/div
0V
0mA
V
AGND
- V
OUT
20V/div
I
OUT
100mA/div
ZERO-CURRENT DETECTION WAVEFORM
WITH DC DISCONNECT ENABLED
MAX5971A toc12
100ms/div
0V
0mA
V
AGND
- V
OUT
20V/div
I
OUT
100mA/div
EN TO OUT TURN-OFF DELAY
MAX5971A toc11
100µs/div
0V
0V
0mA
V
AGND
- V
OUT
20V/div
I
OUT
200mA/div
V
EN
5V/div
SHORT-CIRCUIT TRANSIENT RESPONSE
MAX5971A toc10
10µs/div
0V
0mA
V
AGND
- V
OUT
20V/div
I
OUT
5A/div
SHORT-CIRCUIT RESPONSE TIME
MAX5971A toc09
20ms/div
0V
0mA
V
AGND
- V
OUT
20V/div
I
OUT
200mA/div
OVERCURRENT TIMEOUT (240Ω TO 138Ω)
MAX5971A toc08
20ms/div
0V
0mA
V
AGND
- V
OUT
20V/div
I
OUT
200mA/div