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TLC5916: can i connect a digital potentiometer to the R-EXT pin?

Part Number: TLC5916

Hello Everyone,

i am using the TLC5916, and i am wondering if i can control the current going through the leds by a digital potentiometer, but as you already know that the digital potentiometer only allows 1 or 2 mA of current to go through it and i don't know where is that parameter in the datasheet of the chip, so can you please help me.

Thanks.