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TLV3702: Glitch on TLV3702IDGKR during power up

Cheng Yan Yang
Prodigy 30 points
Part Number: TLV3702


Tool/software:

During testing, we observed a glitch at the output of the TLV3702IDGKR(U123), which only occurred on the comparator in Output channel 2(group B).

Further investigation confirmed that this issue is related to the power sequence.

 

The power sequence is as follows:

12V_AUX → 3V_AUX → PS_Vref_2v5 → VCC12V

 

Based on our analysis, as long as the power sequence of the inverting input is earlier than that of the non-inverting input,

a glitch will be observed at the output. This glitch originates from VCC (Pin 8).

 

We would like to confirm whether this result is expected behavior for this component?

  • 0
    TI__Guru 62586 points

    Hello Andy,

    This is a duplicate of an internal email thread started 7/7/2025.

    Is there a reason you started a new thread? Otherwise, I am closing this as we are awaiting customer feedback on the email thread and should continue there.