National Semiconductor LM5072 Manual - page 7
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Manual
Manual is about: 12Vout 25W PoE PD Power Eval-Board for IP
Camera
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eval board to the negative terminal of the electronic load. Set
electronic load current to 5A.
3. Turn on the PSE.
If lab power supply is used
1. Cut and strip one end of the Ethernet cable. Connect wires
#4 and #5 to the positive output of the DC power supply. Con-
nect wires #7 and #8 to the negative output of the DC power
supply.
2. Plug Ethernet cable to J300 on the eval board.
3. Connect test point P102 on the eval board to the positive
terminal of the electronic load. Connect test point P103 on the
eval board to the negative terminal of the electronic load. Set
electronic load current to 5A.
4. Turn on the DC power supply. Slowly increase the input
voltage. The eval board will turn on at around 38V.
9.0 Waveforms
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