TLC5955: can set the VLED to 12V?

user4656546

Intellectual 475 points

Part Number: TLC5955

Hi TI team:

Since the output voltage of adapter is 12V, for the cost concern, can we set the Vled to 12V？

I checked that the Vout can be up to 11V, and the voltage on RGB LED should be 2~3V. does it make sense?

Pls advise, thanks!

over 7 years ago

0 Kenneth Du over 7 years ago

TI__Genius 14295 points

Hi,

The Vled maximum value is 11V.

If using 12V, it has possibility to demage the IC when the LED is short to Vled.

If you think this solves your problem, please help to click "Resolve".

Thanks.
Regards,
Kenneth

0 user4656546 over 7 years ago in reply to Kenneth Du

Intellectual 475 points

Dear Kenneth:

Do you mean Vout=Vled?

0 Kenneth Du over 7 years ago in reply to user4656546

TI__Genius 14295 points

Hi,

As you know, if the LED is short, Vled will stree on OUT.

At this situation, Vout=Vled, so Vled is requiremed not to exceed Vout max.

Thanks.
Regards,
Kenneth

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TLC5955: can set the VLED to 12V?