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Part Number: UCD9081
My customer has the following question.
"Could you help me by providing additional information on the temperature rating on the UCD9081? It is rated with an Operating free-air temperature Spec of 85C with no maximum junction temperature specified on the datasheet. I would guess it has a recommended max junction specification of 125C, but I wanted to verify with you."
We are checking this and will update you soon.
TI Power Sequencer
Fusion GUI 7.0 for UCD90xxx
UCD90320 PMBus Command Reference Manual
UCD90xxx PMbus Command Reference Manual
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In reply to yihe:
The inital resposne i got is that the Junction temp does not vary widely from the free-air temperature sine the device is very low poer and does not genertate much.
heat. so i would think 125C is too high.
Would 105C be OK?
In reply to Aaron Spaete:
The ambient T in many cases can be 85C. If that is the case, there is no way the Tj can stay at 85C as well. I would expect it to be hotter. Ideally we would be at 105C. Yes, this is an issue.
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