Jump to content

Solutions to drive a 8x8 bi-color CA LED Matrix

Recommended Posts

I've got a bunch of 8x8 common anode bi-color (red, green) LED matrix's I want to make some driver boards for. Datasheet here: http://www.sz-xsm.com/v15/guige/%E7%82% ... 8A-BRG.pdf


My current idea for driving them is using TLC5926 for the rows, but I'm not exactly sure what the best solution for the columns is, all the high-current 595's can only sink high currents, so I was thinking of just using a 74HC595 with some transistors.


Any better solutions/suggestions?

Link to post
Share on other sites

I saw the TLC59213, however I was trying to keep the display either SPI or I2C driven. I think the best solution is like you said digital transistors.


I could also use a single chip solution like the HT1632C ($2 in single qtys). A strange thing I noticed is that it does PWM control but also requires current limiting resistors on the LED's.

Link to post
Share on other sites

Really? that's a good price, is shipping included? Cheapest I've found is on eBay for $1.8 each at qty 5 /w free shipping. I only need 5-6 myself.


I'm going to ask someone I've ordered parts from before how much he would charge to get them from Taobao, it looks like 70 cents each in single quantities.

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...