Putting LED current to 0 increase the voltage

user4566018

Hi,

I am using Python to communicate with the LCr. I manage to set the LED current to 0 in the three LEDs.

I am worried because by doing this I see that the Voltage consumption increases from 4.97V using RGB LEDs normaly, to 5.45V when current set to 0.

Is this a problem? is there a solution?

Thanks, Pepe

over 7 years ago

0 Paul Goedeke over 7 years ago

TI__Mastermind 30600 points

Pepe,

I suspect what is happening here is that you're causing the LED driver to perform in a region it wasn't designed for. From the post you shared with me on negative current, you'll see that the LED driver isn't great at handling low current. If you'd like to turn off the LEDs, I would use the LED_EN signals rather than setting the current to 0.

Paul

0 user4566018 over 7 years ago in reply to Paul Goedeke

Intellectual 630 points

Thanks a lot!

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Putting LED current to 0 increase the voltage