Automotive sequential LED lighting IC saves development time

Automotive sequential LED lighting can be added easily and cost-effectively, using the MAX25605 sequential LED controller, says Maxim Integrated Products. It eliminates the need for a microcontroller and software, to save development time and reduce design complexity. It also reduces design space requirements by up to 50 per cent and reduces the bill of materials (BoM) costs by up to 25 per cent compared to the closest competing solution, says Maxim.

Its introduction brings sequential LED lighting features to mid-range and economy vehicles, Maxim believes. By simplifying the design, these models can now adopt their own animation signatures. It controls LED current up to 750mA, rather than 100mA in competing solutions, reports Maxim, providing more flexibility in the lighting design. The MAX25605 integrates six switches, manages up to three LEDs per switch and can be daisy-chained up to 16 devices without the need for a microcontroller or software. Designers can accurately program sequence timing, direction and linear or log dimming, while also easily detecting fault conditions. The component reduction cuts BoM costs and eliminates the need for software.

Edward A. Sanchez, senior analyst at Strategy Analytics, explains why reducing the cost and complexity of sequential lighthing is significant. “OEMs know creative use of LED exterior lighting on cars instantly conveys technical sophistication and aspirational style. Sequenced LEDs represent the next evolution in vehicle styling, creating a unique and appealing visual feature that also has compelling safety and functionality benefits.”

The MAX25605 is available now from Maxim Integrated and its authorised distributors. The company also offers the MAX25605EVKIT# evaluation kit.

Maxim Integrated offers a broad portfolio of semiconductors, combined with world-class tools and support. It delivers analogue solutions including efficient power, precision measurement, reliable connectivity and robust protection along with intelligent processing. Its customers are designers in application areas such as automotive, communications, consumer, data centre, healthcare, industrial and the IoT.

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