Light source driving control device

A light source driving control device comprising:

• a microcomputer supplying a constant current through a single power channel;
• a light source unit having an input terminal connected to a single power channel terminal of the microcomputer and having a plurality of light emitting units in which a plurality of light emitting diodes (LEDs) are each connected in series;
• a switching unit having a plurality of switching devices connected to the single power channel terminal of the microcomputer and the output terminals of each of the plurality of light emitting units;
• and
• a plurality of drivers which receive a control signal from the microcomputer, are connected to an output terminal of at least one LED of at least one light emitting unit of the plurality of light emitting units, and control a driving of the at least one connected LED thereto,
• wherein each of the plurality of light emitting units has LED groups in which unit LEDs are connected in series, and
• wherein at least one of the plurality of drivers controls the driving of the unit LED groups disposed in each of at least two of the plurality of light emitting units.