Low EMI implementation for automotive

Maxim Integrated Korea has launched the 'MAX20078' automotive LED controller, which provides fast response times and low EMI (electromagnetic interference) simultaneously.

The MAX20078 is an LED controller suitable for matrix lighting design, supporting high performance, easy design, and rapid time-to-market.

When LED drivers and controllers rapidly switch LEDs, current overshoots and undershoots can occur. When designing advanced lighting products, it is very difficult to eliminate EMI while placing numerous LEDs at highly dense points. Automotive manufacturers spend significant time and resources experimenting with various layouts and filtering to achieve low EMI.

The MAX20078 enables smoother transient response with ultra-fast response times. It provides a wide dimming ratio without the need for a separate compensation circuit and features built-in fault protection and monitoring circuitry.

Switching frequency programming is possible from 100kHz up to 1MHz. Thanks to the easy design and flexible switching frequency provided by the MAX20078, customers can bring products to market faster.

"With our latest products, Maxim helps customers create brighter, faster, and more stylish lighting," said Yin Wu, Business Manager for Maxim's Automotive Division. "The innovative automotive LED controller MAX20078 is the only solution that combines the speed of a hysteretic buck controller with the low switching noise of a fixed-frequency buck controller."