Microchip HV3418 driver needed

[Martin Černý]

If anyone has this driver, please let me know. I'd be immensely grateful, need two of them for a special clock project.

[Michael G.]

You might be able to use https://www.digikey.de/de/products/detail/microchip-technology/HV507PG-G/4902491?s=N4IgTCBcDaIBYDcCsAGA7CAugXyA. However, it’s only 5V, not 12V, but the pin configuration is compatible. The rest of the specifications are also the same, or at least very similar.

[Martin Černý]

My reply doesnt show for some reason... I do already use HV507 but I have to pwm so it doesnt overheat. HV3418 is more powerful so I could run the neons at full potential :) It's pin compatible so I could just swap them.

Dne neděle 15. března 2026 v 19:38:25 UTC+1 uživatel Michael G. napsal:

[Martin Černý]

Apparently these chips were used in industrial printer machines. Searching on ebay for "kodak charge driver board" does yield some results of used PCBs with HV3418 onboard. Those boards are expensive but so far seem to be the only way to get the chips. I got myself one of those boards, hopefully the chips work.

If anyone find a different source, please add it here! Those chips are super useful for variety of neon projects.

Dne pondělí 16. března 2026 v 8:54:38 UTC+1 uživatel Martin Černý napsal:

[andybiker]

I'm sure we could use the driver chips for plasma TVs. if you can find the data

[严泽远]

I have some HV9708 and HV57708 chips in my stock, I used HV57708 to make IN-14 nixie clocks ten years ago, I'd be happy to share them if anyone needs them.

[Martin Černý]

I'd certainly be interested. How much would you ask for those chips?

Dne úterý 2. června 2026 v 17:35:19 UTC+2 uživatel 严泽远 napsal: