Automotive lighting applications will proliferate both inside and outside vehicles, with lighting systems becoming increasingly prevalent across all automotive segments. This market expansion will correspondingly drive greater silicon development.

(I) Contemporary Interior Vehicle Lighting

Contemporary interior vehicle lighting predominantly employs white light LED drivers and RGB red-green-blue programmable drivers.

Bright white LEDs are primarily employed in applications demanding relatively high luminance, such as overhead lights, reading lamps, and luggage compartment lights. Unlike standard bulbs, they can create a warm and comfortable ambience for the driver, while their dimming slope characteristics enable unique and differentiated styling and effects. ON Semiconductor provides discrete or constant-current silicon solutions for such applications.

RGB and white LEDs complement each other, their development driven by the push for greater vehicle personalisation. They serve as programmable interior light sources for applications including instrument panel, centre console, navigation/audio area illumination, and special effects like ambient lighting. Colour accuracy requires calibration, and key features meeting automotive manufacturer requirements include dedicated LIN addresses per RGB channel and zone dimming capability. ON Semiconductor provides System-on-Chip (SBC) solutions for linear systems in such applications. These SBCs interface via the LIN bus, delivering all functionality required to drive RGB LEDs.