Rainbow Electronics MAX5971B - Manual (Page 8)

8 ______________________________________________________________________________________
MAX5971B
Single-Port, 40W, IEEE 802.3af/at,
PSE Controller with I 2 C
Typical Operating Characteristics (continued)
(T A = +25°C, unless otherwise noted.)
ZERO-CURRENT DETECTION WAVEFORM
WITH AC DISCONNECT ENABLED
MAX5971B toc13
100ms/div
0V
0mA
V AGND - V OUT
20V/div
I OUT
100mA/div
ZERO-CURRENT DETECTION WAVEFORM
WITH DC DISCONNECT ENABLED
MAX5971B toc12
100ms/div
0V
0mA
V AGND - V OUT
20V/div
I OUT
100mA/div
EN TO OUT TURN-OFF DELAY
MAX5971B toc11
100µs/div
0V
0V
0mA
V AGND - V OUT
20V/div
I OUT
200mA/div
V EN
5V/div
SHORT-CIRCUIT TRANSIENT RESPONSE
MAX5971B toc10
10µs/div
0V
0mA
V AGND - V OUT
20V/div
I OUT
5A/div
SHORT-CIRCUIT RESPONSE TIME
MAX5971B toc09
20ms/div
0V
0mA
V AGND - V OUT
20V/div
I OUT
200mA/div
OVERCURRENT TIMEOUT (240Ω TO 138Ω)
MAX5971B toc08
20ms/div
0V
0mA
V AGND - V OUT
20V/div
I OUT
200mA/div