I am only driving one tube otherwise I would use such a chip or the
HV5812P-G serial-in which does not seem to need a negative supply. You
probably have a good reason for your choice.
My last schematic has errors which I have corrected below. I did not know
the pin numbers for the IV12. These are c
I'm contemplating the HV57009 for my upcoming VFD clocks; it requires a
negative supply so that presents some challenges but a single device can
drive 64 segments at 2mA each.
On Saturday, January 30, 2021 at 9:48:06 AM UTC-8 bung...@gmail.com wrote:
> Thanks Davis; I think I have a solution bu
Hi Peter,
For my vfd clock project (https://github.com/davidmpye/VFD), I used the
following high side driver ICs (I used one per tube but of course I
could've multiplexed)
They are either known as UDN2981 and there's also a Toshiba version
(TDSsomething). They aren't BCD though - just one pin pe
Have you looked at a max6920 or 6921?
On Sat, 30 Jan 2021 at 00:57, peter bunge wrote:
> I need to drive a single IV12 vacuum fluorescent display from a BCD to 7
> segment chip.
> I could use level shifters like the CD40109B or CD4504B but they don't
> have 7 devices in one chip (4 and 6) and on
> I need to drive a single IV12 vacuum fluorescent display from a BCD to 7
> segment chip.
> I could use level shifters like the CD40109B or CD4504B but they don't have 7
> devices in one chip (4 and 6) and only drive 18 volts which might work.
Maybe a 7446, which can support up to 30 volts?
-
I need to drive a single IV12 vacuum fluorescent display from a BCD to 7
segment chip.
I could use level shifters like the CD40109B or CD4504B but they don't have
7 devices in one chip (4 and 6) and only drive 18 volts which might work.
I could use a ULN2803 transistor array with 7 pullup resisto
