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TLV320AIC3120: Power Sequencing Requirement

Part Number: TLV320AIC3120

Hello,

The datasheet mentions that the supplies for the part should be sequenced in a particular order in section 7.3.1.

Later in the datasheet, in section 9, it says that the part has been designed to be extremely tolerant of power supply sequencing.

How important is it for us to sequence the supplies in our design?  The evaluation board doesn't seem to do that.  We have a microcontroller in our design so we're able to do it, but it's a little extra work.  

  • Hi Scott,

    In general, you will not need to follow the power supply sequence. It is only documented so that during debugging/ testing there is a clear way to eliminate any problems that may have arisen with a particular bring-up sequence.

    Best regards,
    Jeff McPherson