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Power cycling deterioration
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#1 (permalink)      10/11/2021 10:43:49 AM US Central   quote/reply + tips
bruzehual
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Power cycling deterioration
Hello!

I have been given the task to check how bad it would be if we acted on a daughter board in a power cycled manner, not having it powered the whole time during an orbit in a cubesat. But only at specific times. It would be our radio, so reliability and durability is key since once we loose that we loose all communication. The temperature inside the spacecraft where radio is mounted should always remain well within the limits of operation specified by the boards manufacturer but i still wanted a second opinion regarding the matter, especially after reading the conclusions and some other stuff in the paper which clearly is too old to consider what could happen to modern ICs.
#2 (permalink)      10/12/2021 7:30:56 AM US Central   quote/reply + tips
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zarck
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There's no general answer. Quality ICs can live for decades with daily power rotation. But they can also die fast if for example the power supply is unregulated and spikes on power on.

Would also think that cosmic radiation might be a huge issue with off the shelf products.

There are a lot of documentation for "designing electronics for space" (google is your friend) that you will need to read before partaking is such a venture.

Good luck