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TLV62085: Over current Protection about TLV62085

Si Yoon Kim
Intellectual 660 points
Part Number: TLV62085
Other Parts Discussed in Thread: TPS65262-2

Dear Team,

Hello, I would like to inquire about the protection operation of TLV62085.

A few days ago, I inquired about the problem that Over Current Protection is not applied depending on the Buck convter voltage output.

I misunderstood the Buck Converter device. It was TVL62085, not TPS65262-2.

When the output voltage of the buck converter is relatively low, protection not be applied in the Over Current condition.

Why is this situation happening? Is this normal behavior?

I'd like to ask why you don't apply Hic-cup mode protection when outputting a relatively low voltage.

I always appreciate for your replies.

  • +1
    TI__Mastermind 27006 points

    Hi Si Yoon,

    Thanks for coming to us with your queries.

    First, the hiccup time during over load or short circuit conditions is typically 66us only and not 16ms as shown in the first figure you provided. Hence, there is a mismatch between what is indicated in the datasheet and the application waveform.

    To better understand the issue, kindly provide a copy of the schematic diagram, PCB layout and waveforms with Vin, Vout, inductor current and Iout at 1.5V and 0.85V output.

    Datasheet:

    Application waveform:

    Best regards,

    Excel