All of the TLC5940 chips have all input lines in parallel, except for the Serial Data in, the SIN goes through each chip.
The ground is the same ground in the ribbon cable.
I am not running at the max data rate at the moment. it is much lower than that, but if later it is needed i figure its...
At the moment, i have ribbon cable connecting 12 TLC5940 LED PWM Drivershttp://focus.ti.com/lit/ds/symlink/tlc5940.pdf" . They are nearly working except they occasionally flicker. I believe this is because there is not enough contrast between the High and Low data (currently running at 3.3...
The VCC for the TLC5940's is between 3 - 5.5 volts,
i have used ribbon cable, not twisted pair, twisted pair was not feasible in this situation, there was limited space restrictions and the additional 2nd core (making 16 wires total for communication lines) took up to much area.
500mA is the...
Hello Berkeman,
I am driving 12 TLC5940's LED Drivers from a propeller Parallax Micro controller.
The micro controller outputs IO voltages at 3.3 volts, and over the 4 meter distance from the controller to the last chip (all are connected in parallel along the 4 meter distance). there is a...
I have changed the circuit, the transmittion distance is now 5 meters, a bit more realistic.
I have tried to wire up the buffer ic, but with no luck.
The Buffer that i think would be the correct one is the 74HC240 Octal Buffer Line Driver IC asit has a higher fan out, and i am driving 12 IC's...
the only problem i would have is i am using this signal and daisy chaining it to several TLC5940's (LED PWM drivers). 4 groups of 3 in fact, (RGB), the furthest one is at most with current design is about 40 meters, but i am looking at changing the design to make it 10 meters. if i used a 74S...
32-40 meters would be the transmission distance i was going to use twisted pair, but their is 10 lines all up. Ill work something out and let you know how i go, cheers
just a quick one,
would
http://jaycar.com.au/products_uploaded/ZC4867.pdf
or
http://jaycar.com.au/products_uploaded/sdls144.pdf
do the trick?, they are a local supplier of electronics here in Australia, and it would be easier for me to get the parts here
Hello, I have a circuit that i will be running the IO lines a reasonable distance, and i would like to amplify the lines from the current 3.3Volt to 5.0volt. I'm sure this is probably a simple task and (hopefully) their is a single IC someone could direct me to. I thought that maybe a Darlington...