New generation of far and near light LED headlight driving solutions
New generation automotive near and far light LED headlight driving scheme based on Infineon TLD5085
With the rapid development of the automotive industry, the requirements for the performance of automotive headlights are becoming higher and higher. LED lights are the future development trend as a new type of lighting source. Compared to traditional halogen and xenon lamps, LED lights are very energy efficient and environmentally friendly Excellent, and LED has the characteristics of long life, high brightness, high temperature resistance, small size, good stability, good shock resistance, high luminous purity, clear and bright colors, fast response, etc. Favor.
Pinjia Group has been devoted to the design and promotion of product solutions for the automotive industry. This solution is based on Infineon's next-generation power control chip, which is an automotive headlight solution. Compared with the traditional single-channel drive solution, this solution has the advantages of fewer peripheral components, low BOM cost, high efficiency, and good EMC performance. High-brightness (HB) and smart LED solutions are used to further upgrade traditional automotive lighting solutions. At present, the scheme has been applied in Geely, Guangzhou Automobile and other car factories.
Scene application diagram
Product entity diagram
Display board photos
Solution block diagram
(1): Wide voltage input.
(2): H-Bridge topology.
(3): Automatic spread spectrum function.
(4): Switching frequency is 200KHz ~ 700KHz.
(5): The efficiency is as high as 96%.
(6): Current control accuracy is 3%.
(7): Adjustable soft-start function.
(8): Support Limp Home function.
(9): Support multiple fault diagnosis and protection functions.
(10): Support current control mode and voltage control mode.
1): The voltage input range is 2V ~ 55V.
2): Switching frequency 200KHz ~ 700KHz.
3): The system efficiency is up to 96%.
4): Supports constant current and constant voltage modes.
5): Supports open-circuit, short-circuit, over-voltage, over-temperature protection functions.
6): Support analog dimming function.
7): Limp Home function.
8): Support NTC dimming;