Rainbow-electronics MAX5945 Bedienungsanleitung PDF herunterladen (Seite 43)

MAX5945

Quad Network Power Controller

for Power-Over-LAN

______________________________________________________________________________________ 43

MAX5945

-48V

GATE_

INTERNAL PULLDOWN

(MANUAL MODE)

1kΩ

-48VRTN

FDT3612

100V, 120mΩ

SOT-223

SENSE_

OUT_

OFF

DET_

SDAIN

SDAOUT

SCL

DGND

OSC_IN

AUTO

MIDSPAN

AGND

INTERNAL PULLDOWN

(SIGNAL MODE)

0.5Ω

-48V

OUTPUT TO

PORT

-48V RTN

OUTPUT TO PORT

NOTE: ALL SIGNAL PINS ARE REFERENCED TO DGND.

1N4448

1kΩ

1 OF 4 CHANNELS

1.8V TO 3.7V,

(REF TO DGND)

INT

RESET

3kΩ

180Ω

OPTIONAL BUFFER

INTERNAL

50kΩ PULLUP

4.7kΩ

1kΩ

1N4002

CAN BE UP TO 100kΩ

HPCL063L

OPTIONAL BUFFER

HPCL063L

VCCRTN

(3.3V)

SCL

SDA

SERIAL INTERFACE

3kΩ

ISOLATION

DGND MUST BE CONNECTED DIRECTLY TO AGND

FOR AC DISCONNECT DETECTION CIRCUIT TO OPERATE.

0.47µF

100V

SHD_

SINE WAVE

100Hz ±10%

PEAK AMPLITUDE 2.2V ±0.1V

VALLEY AMPLITUDE 0.2V ±0.1V

Typical Operating Circuits (continued)

Typical Operating Circuit 2 (with AC Load Removal Detection)

1 2 ... 38 39 40 41 42 43 44

Quad Network Power Controller 1

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