I want to use five of the TLC5925 together.
My Problem:
I
want, that all the Output-Channels of alle the 5 IC's make the same
Output Curent, which I want to dynamicale change between 5 to 45 mA in oder to make the LED's more or less bright
So i want to control all of the 5
IC's(respectively the 5 R-Ext-Pins) from One Point to make sure all the
Pins dynamically generate the same Output-Current for the LED's.
How can I realize that?
In which way the chip use the external Resistor according to adjust the Output Current?
is there a Voltage messaured, a Current?
so I could connect the R-EXT-Pin with a certain Voltage or a Current in Order to adjust the Output-Current?
Thank you for your time for answering.