NXP Semiconductors announced on November 15 that it will introduce a fully integrated, highly flexible driver chip solution based on automotive-grade technology for automotive LED headlamps and taillight applications. The ASL1010NTK and ASL1010PHN are available in an 8/16-lead package and are the industry's first automotive LED driver ICs with many core features.
At present, automotive LEDs have been using driver chips for general-purpose solid-state lighting (SSL) applications, which are complex, expensive, and lack the core functions required for automotive applications. With the increasing popularity of automotive solid-state lighting in the automotive industry, lighting control device manufacturers and LED suppliers need more powerful and efficient solutions that enable OEMs to take full advantage of LED energy savings. Because LEDs can save about 50% in fuel consumption and power consumption in some applications compared to incandescent lamps (UMTRI, 2008).
The ASL1010NTK/ASL1010PHN driver chip integrates the core functions necessary for automotive LED lights and is a compact, all-in-one solution without the need for additional components. For the LED module design, it is beneficial to reduce costs, enhance aesthetics and improve reliability.
This system solution from NXP is extremely flexible, independent of the car platform, configuration, output voltage and number of LEDs.
This product can be used on different car platforms. NXP's LED driver chip uses an automatic buck/boost topology to safely drive up to 20 LEDs with standard automotive battery voltage; the output voltage is extremely flexible, ranging from 6V to 60V, supporting the current market Class LED.
The chip has integrated the core functions of the automotive LED driver, which helps to reduce the size of the reference design, increase design flexibility, and easily handle different configurations and LED numbers without redesigning the PCB. The integrated design eliminates the redundancy of different platforms and the need for external microcontrollers. In addition, the ASL1010NTK/ASL1010PHN driver chip is based on the ABCD9 technology node - this is NXP's automotive technology platform that drives analog mixed-signal integration.
Other key features of NXP's LED driver chip include:
1, temperature feedback function, can control the temperature and performance of the LED
2, fault detection function, can provide feedback when the LED fails
3, LED short circuit protection
4, eliminate the LED ripple current, no external components
5, external current selection and PWM programming function
6, adjustable LED internal PWM generation function, allowing the same LED light to be used as both daytime and stop lights
7, LED undervoltage and overvoltage protection
8, small package
The NXP ASL1010NTK/ASL1010PHN automotive LED driver chip will be available for sampling at the end of November and will be on display at the 2010 Munich Electronics Show in Germany.
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