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TLV9064: What's the potential risks of using 10V to supply TLV9064?

Marsh Cai
Intellectual 1675 points
Part Number: TLV9064
Other Parts Discussed in Thread: TLC2274,

Hi Teams, 

Hope you’re doing well. 

Currently, my customer comes with a problem. May need your help.

Background: Due to the supply shortage of TLC2274, customer imported the TLV9064 into some of their products. But when manufacturing, they mixed the TLV9064 and TLC2274 wrongly, so some of their machine applied +5V -5V on TLV9064, which the absolute maximum supply voltage is 6V. However these machines are sent to their customers already, and no failure was reported until now. But their still want to find some technical info (potential risk) from us. Do we have some info about this?

Actions conducted by customer:

1, Customer has tested 10 pcs with semi IV test machine, and they found no shoot through below 10V.

2,  Customer tested these 10 pcs samples with these working conditions and no failure and degradation was detected.(V+V-: +5V,-5V;  A, Ta=25℃ 12h; B, Ta=-40℃  12h; C, Ta=100℃  12h)

 

 

Questions from Customer:

1, Based on the testing results, can we say TLV9064 can support 10V absolute maximum power supply?

2, Based on the testing results, can we say TLV9064 can work with +5V&-5V?

3, Can you recommend some testing methods which customer can conduct by themselves to evaluate the potential risks?

4, What will happen to TLV9064, after long term running with +5V -5V?

5, Do we have some info to evaluate the degradation of TLV9064 with +5V -5V power supply? How many effect will bring to the lifetime of TLV9064?

 

Looking forward to your feedback.

  • 0
    TI__Genius 9030 points

    Hi Marsh, 

    Please note that the TLV9064 has an Absolute Max Rating of 6V and that any stresses beyond the the absolute maximum ratings may cause permanent damage to the device and impact the reliability of the part. The below table is an excerpt from the datasheet. 

    Refer to the Recommended Operating Conditions for the supply voltage range (1.8 min - 5.5V max). Our long-term reliability and degradation testing is not performed beyond absolute max supply voltage ratings. TI lifetime reliability testing is followed per JEDEC standard and more information can be found here: https://www.ti.com/support-quality/reliability/reliability-testing.html. 

    Please let me know if you have further questions.
    Thank you!

    Best regards,
    Ashley

  • 0 in reply to Ashley Kang
    Guru 243000 points

    In particular, voltages above 6 V will cause increased electromigration and will degrade and eventually damage the device.

  • 0
    Guru 140200 points

    Hi Marsh,

    as Ashley already mentioned running a 5.5V (6V absolute maximum) OPAmp at a supply voltage of 10V is an absolute no-go.

    But why is the OPAmp still running at 10V supply voltage then?

    The OPAmp is designed to withstand worst condition scnenarios like seeing short-circuit at an output at temperatures up to 125°C. In such a scenario the OPAmp would immedtaily die when being supplied with 10V. But without output short-circuit and at comfortable ambient conditions the OPAmp may (if at all !) survive 10V, may be for some minutes or even a few hours, but definitely not for the usual life time of an OPAmp which is counted in decades.

    Kai