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TPS23861: Not use I2C interface

Sho Ogane
Genius 5575 points
Part Number: TPS23861

Hi all.

My customer does not use I2C.
I this case, does my customer need to supply Vdd=3.3V? 

Is Vcc = 3.3 V for logic power supply?
I think this device operate by PoE voltage only. 
is it correct?

Best Regards,
Sho

  • 0
    TI__Genius 15685 points

    Hi Sho,

    TPS23861 can operate in auto mode without I2C, but VDD3.3V is needed for normal operation. Please refer to Figure 46 in TPS23861 datasheet for auto 4 port operation schematic reference. Thanks.

    Best regards,

    Penny