I'm looking for a way to control the brightness of LEDs of various colors. (PWM is not an option due to possible sensor sensitivity to strobing).
I'd like to use the LM3509 as a current source to the anodes of a number of different LEDs with an analog mux to select one cathode to send back to the LM3509 main (or sub) sink.
I'm thinking I should be able to control the current source (hence the brightness) by sending control information to the LM3509...
Can it be used in this way?
Thanks!