This was taken fron Absolute Maximum Ratings. There is a note right under them: "Notice: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only, and functional operation of the device at those or any other conditions above those indicated in the operational sections of this specification is not intended. Exposure to maximum rating conditions for extended periods may affect device reliability."
Right under that there are Recommended Operating Conditions, which clearly state VDD 10,2-13,8V and logic input between VDD-2V to VDD. So if it works at 3,3V logic, then good for you, but if something unexpected happens, then manufacturer takes no responsibility, as you use it out of Recommended Operating Conditions. Shortly speaking, area between ROC and AMR is treated like "it won't burn, but it doesn't have to work". AMR is the limit of permanent damage of the chip, while ROC determines range in which manufacturer guarantees, that information found in the datasheet will be accurate. So it is up to you. If the clock is running at your home, then an unexpected failure won't be a disaster. But I would never sell a clock with parts operating out of specifications. W dniu niedziela, 25 lutego 2018 22:26:41 UTC+1 użytkownik mchan napisał: > > This thread was from a few months ago but wanted to add something. First > those chips are pretty cool due to their size so i'll have to try soem at > some point. > > Secondly people keep saying the HV5530 needs 12V logic. I've run these at > 3.3V and all seems to be good. I based this on the data sheet where it > said Supply Voltage, VDD –0.5V to +15V > > then Logic Input Levels –0.5V to VDD+0.5V > > I interpreted that as plus or minus a half volt to the 3.3V it's running > at. Have I got that wrong and the fact it's "working" is a bit of a fluke > ? :) > > > > > > > > On Saturday, October 28, 2017 at 10:33:45 AM UTC-7, SWISSNIXIE - Jonathan > F. wrote: >> >> >> Hi folks, >> >> We all know the PLCC Style HV-Drivers from Microchip, for example HV5530. >> All of them require a +12V Data Signal according to datasheet, but yet >> the run in some circuits with even 5V data signals.. >> >> >> While browsing microchips website i found HV5523/HV5623. >> http://ww1.microchip.com/downloads/en/DeviceDoc/hv5523.pdf >> >> Those are fast 16Mhz registers with 5V logic data and can switch up to >> 220V@100mA per Channel and come in a very small QFN package. (Attached an >> image to PLCC for comparision) >> I will definitly order some of them to test :) they would help to make a >> very slim and thin clock board :) >> >> >> >> Has anyone experimented with them already? Something to know? >> >> >> -- 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 neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/6a69cc37-8ea7-45e2-8546-ee41c43100f0%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
