I have an LED backlight driver with 2 current sinks. Each current sink does not sink enough current to reach the max LED backlight current, so I want to combine them. Is it okay to drive a load, in my case an LED backlight, with parallel current sources? The circuit would look like something this -
In reality the LED backlight is a bunch of LEDs in series and parallel, but for the sake of simplicity we can treat it as a single LED since the connector to the LED backlight consists of an anode and cathode pin. Are there any issues with this approach, such as unbalance or what not? To me I pretty much equate this approach to paralleling load resistors and it is pretty much just an application of the parallel current source concept, so I think it's fine, but I want to see if I am missing something.