Rainbow-electronics MAX5945 Manual do Utilizador descarregar pdf (Página 8)

MAX5945

Quad Network Power Controller

for Power-Over-LAN

8 _______________________________________________________________________________________

OVERCURRENT TIMEOUT

LOAD

= 240Ω TO 57Ω)

MAX5945 toc12

20ms/div

OUT

200mA/div

GATE 10V/div

INT

2V/div

(AGND - OUT)

20V/div

OVERCURRENT RESPONSE WAVEFORM

LOAD

= 240Ω TO 57Ω)

MAX5945 toc13

400µs/div

OUT

200mA/div

GATE

10V/div

INT

2V/div

(AGND - OUT)

20V/div

SHORT-CIRCUIT RESPONSE TIME

MAX5945 toc14

20ms/div

OUT

250mA/div

GATE

10V/div

(AGND - OUT)

20V/div

SHORT-CIRCUIT RESPONSE TIME

MAX5945 toc15

4µs/div

OUT

5A/div

GATE

10V/div

(AGND - OUT)

20V/div

RESET TO OUTPUT TURN-OFF DELAY

MAX5945 toc16

100µs/div

OUT

200mA/div

GATE

10V/div

RESET

(AGND - OUT)

20V/div

ZERO-CURRENT DETECTION WAVEFORM

MAX5945 toc17

100ms/div

OUT

200mA/div

GATE

10V/div

INT

5V/div

(AGND - OUT)

20V/div

Typical Operating Characteristics (continued)

= -48V, V

= +3.3V, AUTO = AGND = DGND = 0V, RESET = SHD_ = unconnected, R

SENSE

= 0.5Ω, all registers = default setting,

= +25°C, unless otherwise noted.)

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 43 44

Quad Network Power Controller 1

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