Looking For External LED Array Driver

Hello Mo,

I am looking into this. I will email you outside of the forum soon.

Dave T

Hello Dave,

i've got the same question, do you got some information about this block and how to get it for me too?

Many thanks in advance

Hello,

We stopped distributing this cell because the part that it drives is obsolete. It was the Allegro A6276E and there is not an alternative part. I started looking into another part that would do this function and found it to be difficult to find. If you have a suggestion please let me know. This old part had shift registers and constant current sources for each LED. Newer parts are much more complicated and require I2C/SPI to configure the part. So I am willing to hear suggestions and look into how difficult it would be to modify the existing code.

Dave T

Hello Dave,

thanks for your reply.

You are right, there seems to be no other ic like this, i couldn't find one too.

As i would need the block just for a private project, i could get some of the drivers from platforms like ebay, they are expensive but it would be worth it to have an led output graph.

Is it possible to get this block?

Best regards

Hello Dave,

I wonder if it's possible to get the external LED driver block to operate with this part http://www.ti.com/lit/ds/symlink/tlc5927.pdf Doesn't look overcomplicated in application, well, at first glance at least

Meanwhile may be it's not the time yet to get rid of the old version, because it looks like the A6276s are still on sale from our chinese colleagues and judging by the price somebody out there got the production of this part in his own hands...

So the question still stands, could we please get the block to run our inhuman experiments?)

For those in search of an alternative to the block in question I'm posting here this link https://ez.analog.com/message/298193?commentID=298193&et=watches.email.thread#comment-297887 , where KJBob kindly shares his solution

Hello Everyone,

Here is the DLL for the External LED Array. It only works for the ADAU1701/ADAU1702. I am putting it up here as a cell that we do not offer support on it. I am not certain if it will stop working with future new releases of SigmaStudio. I did look on the Wiki for the help file and I was able to find it but not the entire original help file with the examples. https://wiki.analog.com/resources/tools-software/sigmastudio/toolbox/licensedalgorithms/externalledarraydriver

So feel free to edit the Wiki page if you like and add some detail.

You have to place the file in the SigmaStudio folder and then run the Add-Ins Browser from the Tools menu. Then check the LED Array DLL.

Then it will appear in the ADI Algorithms--> Unclassified tool box tree. Drag it in and then right click to add the algorithm you desire.

The three pins attach to GPIO.

Enjoy!!

Dave T

Edit on 2/7/2020,

It looks like when we ported over to the new forum platform this attachment did not make it over.

Here it is:

LedArray.zip

This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

Thank you,
EZ Admin