TPS23881EVM-008: TPS23881 EVB POE RJ45 LED circuit design.

Caspar Lai

Part Number: TPS23881EVM-008
Other Parts Discussed in Thread: TPS23881

Dear Sir:

About TPS23881 EVB LED beavior.

Follow EVB user's guide.

RJ45 Port LED define Type-A or Type-B provide POE power right?

If I want design only one LED replace two LED display.(If POE port voltage output, this LED will always bright)

Could you have any suggest modify this circuit?

Thanks!

Caspar Lai

0 Penny Xu over 4 years ago

Hi Caspar,

You can connect the LED to both channel 1 and channel 2's output. Then either channel has output voltage, the LED will be on. Thanks.

Best regards,

Penny

0 Caspar Lai over 4 years ago in reply to Penny Xu

Dear Penny:

Thanks! I already simple modify LED circuit.

Please see the below. Can you assist confirm this circuit. Thanks!

(add Use two diode 100V/2A)

0 Penny Xu over 4 years ago in reply to Caspar Lai

Hi Caspar,

It should work. You can test on bench as well. Thanks.

Best regards,

Penny

0 Caspar Lai over 4 years ago in reply to Penny Xu

Hi Penny:

OK! Thanks!

Caspar Lai

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