Rainbow-electronics MAX5971B Bedienungsanleitung PDF herunterladen (Seite 8)

8 ______________________________________________________________________________________

MAX5971B

Single-Port, 40W, IEEE 802.3af/at,

PSE Controller with I

Typical Operating Characteristics (continued)

= +25°C, unless otherwise noted.)

ZERO-CURRENT DETECTION WAVEFORM

WITH AC DISCONNECT ENABLED

MAX5971B toc13

100ms/div

0mA

AGND

- V

OUT

20V/div

OUT

100mA/div

ZERO-CURRENT DETECTION WAVEFORM

WITH DC DISCONNECT ENABLED

MAX5971B toc12

100ms/div

0mA

AGND

- V

OUT

20V/div

OUT

100mA/div

EN TO OUT TURN-OFF DELAY

MAX5971B toc11

100µs/div

0mA

AGND

- V

OUT

20V/div

OUT

200mA/div

5V/div

SHORT-CIRCUIT TRANSIENT RESPONSE

MAX5971B toc10

10µs/div

0mA

AGND

- V

OUT

20V/div

OUT

5A/div

SHORT-CIRCUIT RESPONSE TIME

MAX5971B toc09

20ms/div

0mA

AGND

- V

OUT

20V/div

OUT

200mA/div

OVERCURRENT TIMEOUT (240Ω TO 138Ω)

MAX5971B toc08

20ms/div

0mA

AGND

- V

OUT

20V/div

OUT

200mA/div

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