A current controller for an output stage of light emitting diode (LED) driver circuitry includes a current source establishing a nominal amount of current available for each member of the set of channels. The nominal amount of current is based on, e.g., a desired brightness level. Pulse width modulation (PWM) circuitry is electrically coupled to the current source and is configured to control durations in which adjusted amounts of current are applied to corresponding members the set of LEDs. Compensation circuitry is electrically coupled to the current source and the PWM circuitry. The compensation circuitry includes a set of switching elements to adjust, for each corresponding member of the set of LEDs, the nominal amount of current and thereby provide to the PWM circuitry the adjusted amounts of current based on feedback representing one or both load impedance variations and parasitic conditions (LIVPC) and process, voltage and temperature (PVT) conditions.