The use of ambient lighting is becoming an integral element for automotive interior designs because it increases comfort and orientation inside the vehicle during night driving. The trend is to have many strategically located RGB LEDs to provide ambient lighting and when necessary, direct the driver’s visual attention. RGB lighting interconnected with a LIN serial bus can provide this visualization information. The Lumissil IS32LT3183A is a fully integrated LIN RGB+W LED controller compliant with the latest LIN bus standards, is AEC Q-100 certified and comes in a small package, making it ideal for cost-effective ambient light modules connected to the automotive LIN bus.