I would say the HV5530 is the best all around driver nixie IC. It comes in a 44 lead quad flat pack or J lead plcc, the latter of which can be placed in a plastic socket that is thru-hole soldered onto the board. It is driven like a regular shift register (like the 74HC595). Shift in 32 bits, each corresponding to a high or low on the 32 high voltage drains. Very simple to implement, and it also includes a blanking pin which can be PWM'd to dim the tubes being driven.
There are several different versions which functionally perform the same high voltage switching: HV5522: 44 pins, TQFP OR PLCC, 12 volt logic level, 220 volts max HV5530: 44 pins, TQFP OR PLCC, 12 volt logic level, 300 volts max HV5523: 44 pins, QFN, 5 volt logic level, 220 volts max On Thu, Apr 4, 2019, 11:09 AM Richard Scales <[email protected]> wrote: > Hello everyone. > Since becoming an addict about two years ago I have built many kits and > have now started down the road of building my own clock - albeit a very > simple one. > My query centres around the use of 74141's (or the Russian version) as > direct drivers for tubes. > From what I have tried so far they seem to work well for all small tubes > as well as Z566M, IN-18's and Dalibors tubes. > I know that the issue of the Blue Spot on IN-18's when driven from 74141's > has been the subject of much discussion here. > I have a box of IN-18's and I know that at least one of them showed some > good looking blue spot(s) when initially tested. I looked in to using an > HV5182 in place of the 74141 and that worked well with all tubes though the > IN-18 that had the blue spot before, still had the blue spot. I had Vpp on > the HV5812 set to about 76V. > I now learn that that HV5812 as an issue sinking much over 3.5mA when > connected to the cathode of a digit when the Anode is connected to 170v via > a suitable series resistor. > Can anyone advise as to whether I am backing the wrong horse by looking at > the HV5812 and whether or not i need to move to another driver such as the > HV5622 which I note is used in a lot of designs that drive IN-18's? > For this project I only need to drive two tubes so the HV5812 is ideal in > that respect. > I am aware of various solutions involving the use of transistors for > switching but would like (if possible) to keep the project as simple as > possible. The HV5812 is available in a DIL package which I like, I believe > that the HV5622 is only in available in the 44 pin square package (SMD or > socket). > All pointers gleefully received! > > -- > You received this message because you are subscribed to the Google Groups > "neonixie-l" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/1e7c6e04-bdb9-4af4-a517-03278ecf8048%40googlegroups.com > <https://groups.google.com/d/msgid/neonixie-l/1e7c6e04-bdb9-4af4-a517-03278ecf8048%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/CALcVLKK%3D-a0D1NtHqmW12JqrK_geOqLMHjKttWUJ1AcnzM1Vpg%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
