TLC59711: TLC59711

Hi, Yasir,

I'm not very clear how you use TLC59711 in your application, and can you give me more details on following questions:
1. What's your bi-color LED, part number?
2. Another LED to "B", what does this mean?
3. What's your problem?

If you can provide some diagram or schematic, we may provide more specific advice.

Regards,
Kenneth

Hi Kenneth,

I am sharing the Schematics with you here. 

The LEDs are RGB LEDs,but I need only 2 Colors from that.

Hope this will help you to understand my requirement.

The problem here is, I see another LED also glowing when I tried to probe one LED,For Ex:- If I try to turn on D1_Green, D2_RED is also glowing,

Is this way of controlling individual LEDs Ok with TLC59711 or will this cause problems?

I hope I have answered your questions.

Regards,

Yasir

Hi, Yasir,

For the way you control 2 colors, it's OK and should have no problem.
Which two colors do you use? Is D2_Red connected? I can't tell from the graph.

Thanks and regards,
Kenneth

Hi Kenneth,

Yes, D2_RED is connected to B0 of LED Driver.

This is what I was asking. 

In first group of LED Driver(R0,G0,B0), I am connecting D1_RED, D1_Green and D2_RED respectively.

Likewise I am doing in all the four groups too.

Thanks,

Yasir

Hi, Yasir,

The application should have no problem.

I suggest you check following items:
1. Does the glowing led only happens near the one which is turned on?
2. You can check the scopeshot of STDI, SCKI, D1_GREEN, D2_RED to confirm whether the data is right.

Regards,
Kenneth

Hi Kenneth.

I have checked the first point you asked. Yes, It is the near LED only glowing.

Thanks for the Suggestion to check the clock and data signals.

Thanks again for the support

Regards,

Yasir