The TLC5922 is a constant-current sink driver with 128 steps of adjustable current value (dot-correction). Each of the 16 channels has an individually controlled dot-correction and an ON/OFF state. Both the ON/OFF and dot-correction have their respective modes set via 1 port of serial I/F. The maximum current value of the constant-current output of all 16 channels is programmed by a single external resistor. An external processor programs each of the 16 channels of the TLC5922 with the desired ON/OFF state and dot-correction value through a single serial interface. After all data is loaded, the processor then latches the information into the TLC5922 and enables the outputs.