HV5523 shortage

Paul Andrews

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Nov 23, 2022, 10:16:47 AM11/23/22

to neonixie-l

I feel like there are going to be quite a few of these types of messages for a while. I can't get hold of HV5523 chips, does anyone have one or know of anyone that has them in stock?

I know about the ones on ali express - with shipping works out at about $50 each. I'm not that desperate - yet.

Nick Andrews

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Nov 23, 2022, 11:30:59 AM11/23/22

to neoni...@googlegroups.com

Yeah, I fear I may come to regret scrapping or even trashing so many old circuit boards in the past, and not just for the lost potential gold recovery either!

On Wed, Nov 23, 2022 at 9:16 AM Paul Andrews <pa...@nixies.us> wrote:

I feel like there are going to be quite a few of these types of messages for a while. I can't get hold of HV5523 chips, does anyone have one or know of anyone that has them in stock?

I know about the ones on ali express - with shipping works out at about $50 each. I'm not that desperate - yet.

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Paul Andrews

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Nov 23, 2022, 1:38:45 PM11/23/22

to neonixie-l

Yes. If I have to, I can desolder a couple from some other PCBs I don't use much.

Moses

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Nov 23, 2022, 2:37:18 PM11/23/22

to neonixie-l

I assume you need that particular package.. yea, I don't see any stock anywhere.

When I designed my last clock I went with the HV5222, mainly because there was another part.. the HV5122 that was pin compatible (although reversed output, but easily corrected in software). I've been trying to think ahead and picking vanilla parts as much as possible lately.

GPU sales appear to be tanking, so we may actually have some excess fab capacity soon.

Regards,

-Moses

David Pye

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Nov 23, 2022, 2:48:45 PM11/23/22

to neoni...@googlegroups.com

My next design (if I get round to it....) Is going to be using a st microcontrollers clone (made by gigadevices - gd32e230c8t6) and discrete HV transistors for Nixie driving.

Cheap and available from JLCPCB as pre fab designs. Can talk to it via spi as well so drive similar to the HV chips if needed.

David

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Paul Andrews

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Nov 28, 2022, 10:52:53 AM11/28/22

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I have managed to source something I can use, thanks to this group.

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