LED bar graph driver - Electronic Circuits Projects Diagrams Free

zachtheterrible · 14th July 2006, 09:48 PM

Hi everybody, yes it's been a while. My life has started getting busier, but I haven't forgot about electronics n this forum

. Which brings me to my question: I need an LED bar graph driver. I checked out the LM3916/4 and that would work for me just fine, but my voltage supply is too low to run that IC. I need something that can run on as low as 4 volts. Any suggestions?

audioguru · 14th July 2006, 10:01 PM

Hi Zach,
Welcome back.
Here are two ICs that work fine on a supply down to less than 3V:

RODALCO · 15th July 2006, 12:06 PM

UAA 170 from Siemens ?

zachtheterrible · 16th July 2006, 06:00 PM

Hee hee, my first time back to the forum and I already feel like an idiot

. Guess I should've looked at the datasheet. I was looking at a picture which showed a supply voltage of 6.8V-18V. Thanks!

oldtimer · 22nd July 2006, 02:06 AM

You're not on your own,I do it constantly and it costs me big money sometimes. I'm learning though,I sometimes even read the instructions.

Marks256 · 22nd July 2006, 03:29 AM

Oh god! Man, you know hell is about to break loose the minute a guy reads the instructions! lol

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14th July 2006, 09:48 PM	(permalink)
zachtheterrible	LED bar graph driver Hi everybody, yes it's been a while. My life has started getting busier, but I haven't forgot about electronics n this forum. Which brings me to my question: I need an LED bar graph driver. I checked out the LM3916/4 and that would work for me just fine, but my voltage supply is too low to run that IC. I need something that can run on as low as 4 volts. Any suggestions? __________________ I'm no electronics god, i just talk too much.

15th July 2006, 12:06 PM	(permalink)
RODALCO	UAA 170 from Siemens ? __________________ There are more ways to get to Rome. Electricity, Electric clocks, Meters and Trains are great.

16th July 2006, 06:00 PM	(permalink)
zachtheterrible	Hee hee, my first time back to the forum and I already feel like an idiot. Guess I should've looked at the datasheet. I was looking at a picture which showed a supply voltage of 6.8V-18V. Thanks! __________________ I'm no electronics god, i just talk too much.

22nd July 2006, 02:06 AM	(permalink)
oldtimer	You're not on your own,I do it constantly and it costs me big money sometimes. I'm learning though,I sometimes even read the instructions.

22nd July 2006, 03:29 AM	(permalink)
Marks256	Oh god! Man, you know hell is about to break loose the minute a guy reads the instructions! lol