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What are the implications of absolute maximum voltage of a device

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matrixofdynamism

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Lets say a device as an absolute maximum voltage of 7V. Does this mean that running it at 7.1V or 7.2V would destroy it, even if this this is done for a few seconds. What if the chip is used at a higher voltage than absolute maximum for just a few seconds?

I haven't done this yet but want to know from other people that have tried running something above the absolte maximum voltage,
 

SunnySkyguy

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Some absolute maxima are fuse link or power based, which varies with design margin.

Others are trigger levels,that cause internal SCR mode failures and following self destruction in seconds with sufficient power.

Neither design is acceptable in practise. but sometimes it just wounds the chip, so it appears to,work after.
 

KlausST

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Hi,

often you may find something like this in datasheets:

Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.


(from a Linear Technology device datasheet)

Klaus
 

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