topic iMX285 lifetime estimation in i.MX Processors

iMX285 lifetime estimation

davidrabe — Wed, 04 Mar 2015 09:03:02 GMT

Hi.

Is any liftetime estimation for the iMX285 available, as AN4725 for iMX6?

Thanks,

David Rabe

Re: iMX285 lifetime estimation

SergioSolis — Wed, 04 Mar 2015 22:58:42 GMT

There is no lifetime document available for the i.MX28 , however the same lifetime estimate should apply on i.MX28 as long as the junction temperature is not over the limit.

Have a great day,
Sergio

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Re: iMX285 lifetime estimation

darron — Tue, 12 May 2015 04:15:41 GMT

In that document, the automotive variant for exactly the same specs (792MHz 1.15V core) is 65,000 @ 105 degC, and the industrial variant is 112,000 @ 105 degC. I find it counterintuitive that the automotive part, which is rated for a much higher junction temperature of 125 (vs. the industrial part's 105) would have a much shorter expected lifetime.

Is this correct, and can we assume the iMX283C is going to live significantly longer at temperature than the iMX285A?

Are the industrial parts considered "hardier" than the automotive parts?

We'd like to switch to the automotive variant for lifecycle reasons (it's guaranteed to be available for 5 more years than the industrial), but this has got us a little worried.