LED resistor IC - Electronic Circuits Projects Diagrams Free

Hank Fletcher · 16th June 2007, 05:34 PM

Okay, I'm a total newb for asking this, but I'm looking for a DIP IC for limiting current to some LEDs. I'd thought for sure I'd seen something like this on dipmicro, and I'm pretty sure they exist but I feel like I'm going nuts trying to search for what I need! Maybe I'm just googling the wrong terms? I just want a compact package for limiting current to individual LEDs or 7-segment displays - somewhere around 400 Ohms. Thanks!

ericgibbs · 16th June 2007, 05:42 PM

hi Hank,
Are you thinking of DIP resistor networks or an active device?

http://ee.usc.edu/library/ee459/data.../Resistors.pdf

Hank Fletcher · 16th June 2007, 05:56 PM

Just a DIP resistor network like the top one in your PDF. Do you have a component number, or store, or any kind of lead as to where I can find a network with 470 Ohm or so resistors? Sorry for being so daffy about this...

Googling "IC" "network" "resistor" "DIP" in any combination doesn't seem to work, I think the terms are all too generic.

Hank Fletcher · 16th June 2007, 06:06 PM

Okay, I lied. I just googled "DIP resistor network," which has got me going in the right direction again. Still, it seems to me that there must be a lot of folks out there using one in the LED resistance range to save space and time working with their mcus and whatnot. Is there are popular (and widely available) favourite, and as a bonus availabe from a Canadian distributor?

ericgibbs · 16th June 2007, 06:10 PM

Quote:

Originally Posted by Hank Fletcher

Okay, I lied. I just googled "DIP resistor network," which has got me going in the right direction again. Still, it seems to me that there must be a lot of folks out there using one in the LED resistance range to save space and time working with their mcus and whatnot. Is there are popular (and widely available) favourite, and as a bonus availabe from a Canadian distributor?

Hi,
Only sources I know are UK based, but does this help as a starter?

http://www.elexp.com/cmp_13d.htm

**3v0** · 16th June 2007, 06:13 PM

Quote:

Originally Posted by Hank Fletcher

Is there are popular (and widely available) favourite, and as a bonus availabe from a Canadian distributor?

If DipMicro does not have the one you want check DigiKey and DipMicro can get it for you in their weekly bulk DigiKey order.

Note that resistor networks also come in SIP packages. Be sure to look at the pinout as they can vary.

Hank Fletcher · 16th June 2007, 06:27 PM

Thanks, both!

3vO: so is DipMicro cool with getting stuff not listed in their inventory from Digikey? I just tried what you suggested and quite easily found the part I was looking for from Digikey. Do I just put the info for the Digikey part in the Parts page on the DipMicro site, and they'll add whatever the cost they figure out to my bill?

Omar.M · 16th June 2007, 11:02 PM

Yup, you just go to their page http://www.dipmicro.com/store/parts.php and type the stuff you need, and Roman should get back to you with the actual prices.

It's actually a really neat idea-- the pooling service (especially to us Canadians, Hank!), we just need to increase the popularity of the site so that everyone wins (instead of just us).

-Omar

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16th June 2007, 05:34 PM	(permalink)
Hank Fletcher	LED resistor IC Okay, I'm a total newb for asking this, but I'm looking for a DIP IC for limiting current to some LEDs. I'd thought for sure I'd seen something like this on dipmicro, and I'm pretty sure they exist but I feel like I'm going nuts trying to search for what I need! Maybe I'm just googling the wrong terms? I just want a compact package for limiting current to individual LEDs or 7-segment displays - somewhere around 400 Ohms. Thanks!

16th June 2007, 05:42 PM	(permalink)
ericgibbs	hi Hank, Are you thinking of DIP resistor networks or an active device? http://ee.usc.edu/library/ee459/data.../Resistors.pdf __________________ Eric "Good enough is Perfect" PIC tutorials: Gramo's: www.digital-diy.net/ Bill's: www.blueroomelectronics.com/ Last edited by ericgibbs; 16th June 2007 at 05:46 PM.

16th June 2007, 05:56 PM	(permalink)
Hank Fletcher	Just a DIP resistor network like the top one in your PDF. Do you have a component number, or store, or any kind of lead as to where I can find a network with 470 Ohm or so resistors? Sorry for being so daffy about this... Googling "IC" "network" "resistor" "DIP" in any combination doesn't seem to work, I think the terms are all too generic. Last edited by Hank Fletcher; 16th June 2007 at 06:01 PM.

16th June 2007, 06:06 PM	(permalink)
Hank Fletcher	Okay, I lied. I just googled "DIP resistor network," which has got me going in the right direction again. Still, it seems to me that there must be a lot of folks out there using one in the LED resistance range to save space and time working with their mcus and whatnot. Is there are popular (and widely available) favourite, and as a bonus availabe from a Canadian distributor?

16th June 2007, 06:27 PM	(permalink)
Hank Fletcher	Thanks, both! 3vO: so is DipMicro cool with getting stuff not listed in their inventory from Digikey? I just tried what you suggested and quite easily found the part I was looking for from Digikey. Do I just put the info for the Digikey part in the Parts page on the DipMicro site, and they'll add whatever the cost they figure out to my bill?

16th June 2007, 11:02 PM	(permalink)
Omar.M	Yup, you just go to their page http://www.dipmicro.com/store/parts.php and type the stuff you need, and Roman should get back to you with the actual prices. It's actually a really neat idea-- the pooling service (especially to us Canadians, Hank!), we just need to increase the popularity of the site so that everyone wins (instead of just us). -Omar