Tagged Questions
0
votes
1answer
32 views
TLC59116 (Y59116) maximum output current
I bought this IC (http://www.ti.com/lit/ds/symlink/tlc59116.pdf) to power a few RGB leds. I was under the impression that it could drive up to 100ma per channel, constant current. However in practice ...
4
votes
2answers
285 views
Small, cheap, and simple driver for 16 RGB LEDs
I am working on a board design that will put 16 RGB LEDs in a circle around a rotary encoder. I want this setup to be simple so that I can run it from any micro with limited software (ie. built in PWM ...
3
votes
1answer
299 views
How to stop a switched current affecting an IC?
I have 10 circuits each consisting of a Touch IC (Atmel at42qt1010) and electrode, and 2 x 350mA Constant current regulators (NSI50350AST3G) and LED's. All connected to a Arduino Mega, by ~1 meter ...
0
votes
2answers
1k views
How to Cascade 4017 Decade Counters?
I am creating a 16 by 16 LED Matrix using 74hc595 Shift Registers to address the columns and using 4017 Decade Counters to control the row. I am using the 4017's in connection with a transistor to ...
0
votes
1answer
258 views
4094N VSS Supply Pinout Error?
I'm currently building an Arduino based LED driver using a set of three CD4094's, I'm slightly unsure of an error I'm getting with my Eagle schematic. The error message reads: 'No SUPPLY for implicit ...
1
vote
1answer
645 views
How does AS1130 132-channel LED driver work?
I was just checking out the AS1130 and I was wondering how you are able to drive a 12x11 array of LEDs using only 12 wires? Could anyone explain this to me?
3
votes
1answer
429 views
4017 counter: Why do some LEDs have multiple connections in this traffic light circuit?
Schematic (from here):
Why are four legs connected to the green LED and two to the amber LED in the 4017 traffic light circuit? Shouldn't it be able to do with only one leg per LED?
