I use the LM3478. It seems to have similar specs and comes in a SOIC version too. I was going to evaluate several, but the LM3478 worked well enough for my purposes!
On Thursday, March 21, 2019 at 4:48:28 PM UTC-4, SWISSNIXIE - Jonathan F. wrote: > > The LT3757 looks quite like a nice ic, i will try it with the transformer > *PA0367A > *from Pulse elctronics, its quite small. Since its only availabe from > digikey, i have to wait until i have an order big enough to order at > digikey :/ > > Probably alot of people are not into new supplies because mostly (like in > any other electronics project) the new and good IC's don't come in SOIC or > DIP anymore, so you need to know how to solder leadless packages.... In a > few other hobby projects i run into the problem that the ic of choice was > only available as BGA... > > One thing about nixie power supplies is usually that the efficiency is > alway given at like 50mA, but usually a normal nixie clock uses way less. > Even 6 IN-18 would only require around 40mA supply. Smaller builds tend to > use 25mA or even 15mA. Nearly every converter is inefficient at low > currents, since the losses are in absoulte values not in percent. "loosing > 5mA" at 50mA would give you give you 90%, but the same design probably also > looses 5mA at 15mA output so that would be way more bad. Alot of people are > fooled by this fact. > > I saw a quite cool design by linear technologies that has around 85% > efficiency at 20mA Ouput, which is enough for a IN-8 clock or so. > -- 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/2f9c40ad-8582-4767-ab91-49461e4c34c2%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
