Rainbow-electronics MAX5971А Manual do Utilizador descarregar pdf (Página 8)

8 ______________________________________________________________________________________

MAX5971A

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

Controller with Integrated MOSFET

Typical Operating Characteristics (continued)

= +25°C, unless otherwise noted.)

DETECTION WITH INVALID PD (OPEN CIRCUIT)

MAX5971A toc16d

100ms/div

0mA

AGND

- V

OUT

5V/div

OUT

1mA/div

DETECTION WITH INVALID PD (33kΩ)

MAX5971A toc16c

100ms/div

0mA

AGND

- V

OUT

5V/div

OUT

1mA/div

DETECTION WITH INVALID PD (15kΩ)

MAX5971A toc16b

100ms/div

0mA

AGND

- V

OUT

5V/div

OUT

1mA/div

DETECTION WITH INVALID PD (25kΩ TO 10µF)

MAX5971A toc16a

40ms/div

0mA

AGND

- V

OUT

1V/div

OUT

1mA/div

STARTUP WITH A VALID PD

MAX5971A toc15

100ms/div

0mA

AGND

- V

OUT

20V/div

OUT

100mA/div

OVERCURRENT RESTART DELAY

MAX5971A toc14

400ms/div

0mA

AGND

- V

OUT

20V/div

OUT

200mA/div

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 20 21

MAX5971A 1

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