In today's mid- to high-end cars, modern lighting concepts are becoming more and more vivid. Whether it's exterior lighting or interior lighting, it's stylish and personal. The mood setting mode is used in different parts of the car to control the color and brightness of the "personal space", such as the driver's foot space or the backlight of the console. This type of automotive lighting uses a new type of light source to meet the requirements of environmental protection and energy saving while enriching the consumer experience.
To achieve advanced automotive lighting applications, it must be supported by the corresponding semiconductor technology. As a leading supplier of automotive lighting solutions, ON Semiconductor has been providing a variety of general-purpose and dedicated energy-efficient device solutions for automotive lighting applications, in line with automotive applications. Strict requirements to meet the rapidly growing market demand.
Modern car lighting system
In recent years, light-emitting diodes ( LEDs ) have been widely used in automotive lighting applications. LED-based lighting systems offer longer life, lower power consumption, and greater design flexibility than incandescent lamps. These features make it ideal for automotive interior lighting applications. In addition, as technology continues to advance, white LEDs with lower cost and higher light output per watt have emerged, making LEDs more suitable for a variety of lighting applications inside automobiles.
LEDs are used in a wide range of applications in automobiles, such as in the interior of a car roof or in the lower interior of a car door, focusing light on specific areas inside and outside the car. The LED can also be integrated into the door handle, keyhole, pedal, cup holder, or as a turn flash on the mirror. The shape of the illuminating indicator can be very simple or very beautiful, to meet the precise lighting, to provide convenience and beauty, as shown in Figure 1.
Figure 1: A variety of automotive lighting applications.
ON Semiconductor's advanced automotive lighting solutions
ON Semiconductor has been providing standard and custom devices for automotive lighting applications, including general lamp driver solutions, as well as stepper drives, LED drivers and high-intensity discharge lamps (HIDs such as xenon lamps). In the HID driver-specific integrated circuit (ASIC) market, ON Semiconductor's headlamp level adjustment and rotary stepper drivers have been widely adopted in the industry. In the automotive LED lighting market, ON Semiconductor offers a broad portfolio of products for both interior and exterior applications. In the block diagram of the automotive lighting system shown in Figure 2, ON Semiconductor has a variety of corresponding products. The following are some of the main solutions.
Figure 2: Block diagram of the automotive lighting system.
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