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New generation of far and near light LED headlight driving solutions

Veröffentlichte Zeit : 2020-01-03 LED
New generation automotive near and far light LED headlight driving scheme based on Infineon TLD5085

Lösungseinführung

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.

car

Scene application diagram

Product diagram

Product entity diagram

Display board

Display board photos

Solution block diagram

Solution block diagram

Core technology advantages

(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.

Solution specifications

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;

Schlüsselkomponenten

No. Artikelnummer Hersteller
1 TLD5085EJFUMA1 INFINEON
2 TLD5085EJ INFINEON
3 TLD5085 INFINEON