SM320F2812-HT: Storage temperature range

TISL

Expert 3785 points

Part Number: SM320F2812-HT
Other Parts Discussed in Thread: SM320F28335-HT

Dear e2e Support,

Could you share the storage temperature range for our -HT version (not mentioned in the datasheet)?

Regards,

over 2 years ago

0 MatthewPate over 2 years ago

TI__Guru 71605 points

I found that we list measurements for 150C(1000 hrs) and 170C(420hrs) for storage here https://www.ti.com/quality-reliability-packaging-download/report?opn=SM320F2812HFGS150

The industrial variant lists -55C to 160C as the storage temp for that device. However, since this device is rated for operation at 220C, it would be reasonable that it could potentially be stored up to that temperature(with the same low temp spec)

While the device is not powered during storage, there is indication in both this DS and the industrial variant that storage at the upper end of the spectrum will shorten the expected operational lifetime of the device in the same way that continuous operation will shorten the lifecycle of the device(Power On Hours). We could apply the same de-rating formula to the storage temp, although that would be pessimistic in my opinion.

Best,
Matthew

0 TISL over 2 years ago in reply to MatthewPate

TI__Expert 3785 points

Hi Matthew,

Can we get the same assumption with the SM320F28335-HT (no storage info in the datasheet); vs the SM320F28335-EP version?

Meaning that the 335-HT could be stored at -65°C?

The fact is that we are struggling to find a chip that could be stored at -65°C and used at -55°C to 200°C.

If you have any other recommendation...

Regards,

0 MatthewPate over 2 years ago in reply to TISL

TI__Guru 71605 points

I'll need to pull in the quality team to comment here. Please give me till the end of the day to update the post.

Best,

Matthew

0 MatthewPate over 2 years ago in reply to MatthewPate

TI__Guru 71605 points

Still trying to find the answer inside of TI on this one. Will give another update tomm.

Best,

Matthew

0 TISL over 2 years ago in reply to MatthewPate

TI__Expert 3785 points

Hi Matthew,

Would you have any feedback?

For information, the customer could accept a 140°Cmax ambiant temperature.

Regards,

0 MatthewPate over 2 years ago in reply to TISL

TI__Guru 71605 points

Let me circle back with the quality team to see where they are at with this one.

Best,

Matthew

+1 MatthewPate over 2 years ago in reply to MatthewPate

TI__Guru 71605 points

I have not gotten a response as of yet, I pinged the team again today. I will be out of the office until next Tuesday, so that will be the next time I can give an update, if we don't see a direct response from them.

Best,

Matthew

+1 MatthewPate over 2 years ago in reply to MatthewPate

TI__Guru 71605 points

Sorry for the delay on our side here, there were quite a few folks that had to be looped in to get to a conclusion. We can support -65C storage on this device, based on the package data we have. The -55C is likely a by-product of the MIL grade spec here, but we allow -65C storage on industrial grade devices in the same technology.

Best,

Matthew

0 TISL over 2 years ago in reply to MatthewPate

TI__Expert 3785 points

Hi Matthew,

Good news. Many thanks.

Can we consider the same for the SM320F28335-HT version?

Regards,

0 MatthewPate over 2 years ago in reply to TISL

TI__Guru 71605 points

Yes, we can support this storage range on both versions.

Best,

Matthew

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SM320F2812-HT: Storage temperature range