The Icc current question of TLC59711

PCK-Kevin

In my design, both the Vcc and Vled is 13V, and I set the LED current at 34mA, I find that the Icc current is more than 25mA, but in another application which the Vcc is 5V, the Icc current is 5mA only, is that normal? I can only find the curve for Icc and output current at 12V Vcc.

over 8 years ago

0 Frank Rothoff over 8 years ago

TI__Expert 6120 points

Hi,

I think figure 17 of the datasheet depicts just that:

There are internal current mirrors implemented to facilitate the features like global brightness. So ICC is more dependant on Vcc, Iref and clocking speed.

Hope this answers your question.

0 PCK-Kevin over 8 years ago in reply to Frank Rothoff

Prodigy 60 points

Got it, thanks a lot! Frank

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The Icc current question of TLC59711