Josh Cook's dual USB-C expansion card

Send me an email at josh_cook@i2clabs.com.au with your new address and I’ll make a note on your order.

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Update emails are going out now. nothing much to update other than what I’ve said in the past couple days.

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Very much appreciated!

Wonderful! We love it when we see this!

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Any update? Has the project been stalled/blocked by something, or is it just taking some time to complete? No rush, I just wanted to know if it is still on its way or not.

Litherally read the 10 replys above you…

Do you mean the ones from a month ago where he said he didn’t have an ETA??? It doesn’t seem inappropriate to ask for another update. I’m historically not the best with social rules/cues so you can correct me if I’m being rude by asking, but it seems acceptable to me given that it has been a month and the last update is that he has all the parts and is fast-tracking the project.

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Another update, I haven’t had much time, but I’m halfway done designing my evaluation board (won’t be in expansion card format) to test out a couple of major things. But one major thing that has come up is, the PD input is limited to 28V, due to heat dissipation, while this is annoying, you’d be making the enclosure hit very high temps, which is mainly caused by how the chip is powered from the system. Once I get the eval board done, I can mostly copy the schematic over, and just have to redo PCB design + layout, still not sure of an ETA.

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Might be a dumb question, but is the PD input limitation a fixable issue (even if the fix is to use a metal enclosure with thermal pads!)? Was planning on using this card for my FW16, so the 28V (140w) max kinda blocks that idea as the 16 really needs 36V (180w) or above.

I use a 100 W Anker USB PD wall wart … as long as I am not gaming, just surfing … It is fine … I do believe the whole point of this project, while it would be nice to have higher PD, is to have multiple USB-Cs one card … anything else is a luxury … imo

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6 posts were merged into an existing topic: A call on 240w adapter

Is this limitation something that could be lifted on your own risk? Could it be implemented in a way like CPU clock speed, it would throttle down if it’s overheating?

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Seems like a fair tradeoff to me. Looking forward to when the final design is done. Better to keep people from getting burned, also for a FW 13 this still allows 100W charging, which is plenty.

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A post was merged into an existing topic: A call on 240w adapter