Lumissil Introduces New RGB Matrix LED Driver for Automotive Lighting

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Lumissil Microsystems, a semiconductor company, announced the IS32FL3105 family of compact 18x2 matrix RGB LED drivers designed to help automotive lighting designers deliver advanced ambient, interior, cluster, and rear-light experiences with smooth animation, robust diagnostics, and scalable in-vehicle connectivity.

Why it matters

Automotive OEMs are rapidly expanding the use of RGB ambient and animated lighting to differentiate vehicle cabins, support driver-assistance prompts and vehicle status signaling, while enabling more expressive Human-Machine Interface (HMI) effects. The IS32FL3105 addresses key challenges like maintaining consistent color and brightness, executing simultaneous lighting changes, meeting EMC requirements, and building scalable lighting architectures.

The details

The IS32FL3105 supports 12 RGB 'color dots' (18x2 channels) with up to 60mA per LED channel and individual LED dimming using 16-bit PWM dithering plus 6-bit DC scaling. It is programmed through Lumissil's proprietary LumiBus (UART-over-CAN) protocol and offered with either an integrated CAN physical interface or a UART interface. The family includes two scalable addressing approaches to expand multi-node lighting systems. The device also integrates features to reduce EMI noise and improve power supply integrity during PWM operation.

• The IS32FL3105 was announced on March 9, 2026.