The Melexis MLX81132 automotive LED driver supplies 24 constant-current channels for high-pixel-count RGB animated interior lighting. Based on the Melexis Light Bus (MeLiBu 2.0), the programmable driver multiplexes its 24 channels, allowing a single IC to control up to 48 individual LEDs or 16 RGB pixels. By sharing processing and driver functionality across multiple pixels, the MLX81132 reduces the cost per pixel in applications such as dashboards, doors, seats, center consoles, and roof lighting.
Operating from a 5-V supply, the MLX81132 provides configurable LED currents up to 80 mA and 16-bit PWM control. Its integrated 16-bit MCU handles pixel control and color calculations locally, while individual LED diagnostics and temperature compensation help maintain consistent color and intensity.
The MeLiBu 2.0 interface provides data rates up to 4 Mbps and individually addresses each IC for synchronized control of distributed lighting nodes. The MLX81132 was developed according to ISO 26262 and supports safety-related applications up to ASIL B.
Samples of the MLX81132 are available now. For more information, contact a Melexis representative or visit the product page.
Source: www.edn.com
