| 摘要 |
<p>Disclosed is a light emitting diode (LED) driving device for driving LED light sources of two channels by using analog and digital dimming control signals, communication data, and sensor monitoring. A driving integrated circuit of the LED driving device comprises first and second gate driving units generating first and second driving control signals for controlling ON/OFF of first and second transistors respectively connected to first and second LED light sources to control a current of the first and second LED light sources, a communication interface performing bi-directional communication with an external control unit; and a digital control unit converting first and second output voltages corresponding to output currents from the first and second LED light sources, and a temperature, input voltage or brightness and a color of the first and second LED light sources input through multi-input terminal pins into digital control signals, storing the digital control signal values in a register, and controlling driving of the first and second gate driving units according to the digital control signal values.</p> |
