I will be building 2 clocks in the near future, and putting board space together and all, the HV5522 are better for me. They are the same chip as the HV5530, and a little cheaper. From what I understand from the datasheet, I can give them ~12v and 5v logic and they should work fine. This seems to be how Jeff uses them in his clocks. Thanks!
On Mar 1, 10:37 am, "Tidak Ada" <offl...@zeelandnet.nl> wrote: > Me is said that the Russian K155XXx series has an aberrant (metric) pitch of > 2,5mm instead of 0.1" (2,54mm) You have to consider that in your lay-out. > > Btw., I have here a condensed pdf of the K155XXx series datasheets (not as > extended as Western ones). > > eric > > > > > > > > -----Original Message----- > From: neonixie-l@googlegroups.com [mailto:neonixie-l@googlegroups.com] On > > Behalf Of Adam Jacobs > Sent: donderdag 1 maart 2012 16:06 > To: neonixie-l@googlegroups.com > Subject: Re: [neonixie-l] Re: Alternative to MPSA42 for direct drive clocks. > > The 74141 or K155ID1 will both work fine for cathode side blanking, provided > that your HV supply is a normal value (180vdc). If you are using something > very high, like 250v, then you're going to start running into the problem > that the 74141/K155ID1 are not able to extinguish the nixie. FYI, the > K155ID1 has somewhat different voltage characteristics than the 74141. I > understand that the 74141 can sink something like 60v, where the K155ID1 can > sink 100v. > I think that most nixies extinguish at about 135vdc or so. > > -Adam > > On 3/1/2012 6:52 AM, Ron Schuster wrote: > > Could you clarify something for me? Are you saying is that a 74141 > > should not be used for cathode-side blanking? What about the Russian > > K155ID1, which I assume has similar specs to the 74141? > > > On Feb 28, 7:24 pm, David Forbes<dfor...@dakotacom.net> wrote: > >> On 2/28/12 4:48 PM, Deviantgeek wrote: > > >>> I was looking at the Supertex drivers, mainly the HV5522. Its 220v vs > >>> 300v, would that still work? I am driving 6 IN-18 tubes. I was also > >>> looking at the SN75468, and a few 50v drivers(TPIC6A596)which I think > >>> is too low... I will be building several clocks, and I want good, > >>> reliable, cheap drivers. > >>> (this is just for the cathodes) > >> The voltage required depends on what sort of control you plan to use, > >> and how many volts you apply to the anodes. The important thing to > >> remember is that if one cathode is lit, then the other cathodes don't > >> need more than 50V to turn them off. That's why the 74141 works with its > >> 55V Zener diode clamps on its outputs. > > >> If you want to display one or two cathodes in every tube at all times > >> (no blanking, but possibly fading between numbers), then a 50V driver is > >> barely sufficient. Or you can use an anode driver to blank the tube. I > >> use the TD62083 in my Nixie watch, and it works fine. > > >> If you want to blank the digit with the cathode, then a 100V driver > >> would be necessary and you'd need to use a power supply below 200V. > > >> If you want to blank the tube and use a>200V supply, then you need a > >> higher voltage cathode driver or an anode blanking circuit. > > >> I think most of the Supertex parts want 12V on their signal lines, so > >> they are not very easy to use since normal logic uses 5V levels. > > >> -- > >> David Forbes, Tucson AZ > > -- > You received this message because you are subscribed to the Google Groups > "neonixie-l" group. > To post to this group, send an email to neonixie-l@googlegroups.com. > To unsubscribe from this group, send email to > neonixie-l+unsubscr...@googlegroups.com. > For more options, visit this group > athttp://groups.google.com/group/neonixie-l?hl=en-GB. -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to neonixie-l@googlegroups.com. To unsubscribe from this group, send email to neonixie-l+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
