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Hi Mr. Klaus, thank you so much again, I was referring mostly on the CD74HC154 dmx as this was mostly our sample being discussed instead the other one.
Hi Mr. std :D thank you so much! so my guess was right now since you had given a straight forward answer.
I had this thinking where I know it...
Hi Mr. Klaus,
I did read it. Sorry for being slow but there's a lot of times I can't read between the lines :sad:
"You don´t need to control this current. It is already limited by the IC`s input circuitry. (@ the given conditions)" ~ this will be the condition (as written on datasheet) only...
Re: DC Input Diode Durrent?
Thanks for the reply, i haven't search any answers on google because whenever i search dc input current diode, different topics are being shown about diode only or dc input only..
Ok, though it's fine to put resistors as long as its w/in the supply voltage range...
Good day,
What should I be concern with this? Does this mean that i should always put a series resistor on the input/output pins to control current and avoid ruining the IC? Like if I have dmx having 4 input pins for combinations, i should put 330 ohm resistor in series to each input pins of...
Hi Mr.Klaus,
Thanks for replying, i did include a load resistor on the simulation but it didn't still work.
I tried searching analog switches and i think this is really what i need but is there no really other way to work it out using those p-n channel mosfets like just adding few components...
Hi i'm just a starting out hobbyist who knows how to use arduino in switching purposes but there is this switching scheme i want to perform but didn't work out the way i thought it was when i simulate it. Though given i have references provided by guys here told me to follow. I'm not much...
Hi FvM,
no current gain? then I can still use it like this? current gain is for amplification right but i just wanted to use it as a driving switch since that LED will be replaced like an SSR, would that be uhm - ethical in electronics?
I am using the MAX7317 i/o expander. It is said that I...
Proper use of PNP transistor
Hi folks,
I'm actually curious about this, (still a beginner, self-studying, not a genius, doesn't have 1 year experience on electronics, doesn't have solid foundation on basics, doesn't have a mentor, always feels dizzy w/ books but always trying hard to...
Hi Mr.Klaus,
thanks a lot again :) yup. Your a big help on the other thread. I actually want to ask other related questions here that is not now related on solving my current problem (since your ideas solves it already)
A Great thanks for these two response. Now I'm cleared. going to try out...
Hi FvM
Thanks a lot again :)
ok? If i have a higher speed SPI, i shouldn't use some simple mosfet for level shifting then, some specialized ICs? what specs should I be looking to consider for me to determine that it could be used for faster SPI? lower capacitance??
Hi again Mr.Klaus! :D
Ok, i never thought it is since from the "leakage" term, from others i heard it was like even when a component is close or not active like ssr's, leakage current is some current that still passes through but small amount. Here's since it was said "leakage" as input not...
Hi Klaus
i see :D thanks a lot again,
can i ask where did you see, what page was input current of 1uA? input leakage current?
so using voltage divider between arduino and SPI lines is the best pracice and there will be no change in Vout no matter what changed on load (cs5480), Voltage divider...
Hi Klaus,
Yup, after posting I tried reading it out (hehe) Uhm.. so capacitance of 27pf in and 13pf out, so are this values need to be considered when it comes to switching? like if it has bigger capacitance, turning the mosfet off from on would take a while before completely being off and vice...
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