Fully Customizable LED Controller IC for Animated Lighting Applications
July 22 2024 - 5:00AM
Lumissil Microsystems has expanded its automotive and industrial
LED lighting portfolio with the introduction of the IS31/IS32CS8979
family of intelligent programmable LED controller ICs. These new
controllers enable lighting engineers to create customized dynamic
LED lighting animations tailored to their system requirements. They
feature integrated non-volatile memory to store animation sequences
and LED parameters, essential for dynamic lighting effects such as
color transitions, pulsing, fading, and animated patterns.
The IS31/32CS8979 are 18-channel LED controllers designed to
operate without an external microcontroller, thereby reducing the
PCB footprint and overall system cost. Pre-programmed light
animation sequences can be triggered by external signals detected
on any of its 9 GPIO pins. Each LED channel supports a maximum
output current of 60mA and has a voltage tolerance of up to 40V.
The LED channels can be combined to achieve higher LED currents,
and LEDs can be connected in long strings for a combined LED
forward voltage of up to 40V per channel. Further, multiple
IS31/32CS8979 controllers can be cascaded to support up to 15
additional LED drivers with synchronization limited by the code
space. The capabilities of supporting long LED strings and
combining channels for a higher output current results in a
high-luminance output from this linear LED controller.
Animation sequences can be stored in 64KB of ECC protected
e-Flash memory and executed by the integrated MCU with DSP
functionality. The MCU, with 2KB of ECC protected SRAM controls the
18-channel LED driver section to perform complex color space
conversions, brightness transitions and color pattern animations.
The IS31/IS32CS8979 also supports in-system-programming as well as
in-system calibration to facility field updates.
“The release of the IS31/IS32CS8979 family is a significant step
towards broadening our smart multi-channel LED driver portfolio."
said Ven Shan, Vice President of Marketing at Lumissil
Microsystems. "LED lighting has become prevalent in automotive and
consumer/industrial applications, where users expect engaging,
personalized lighting for enhanced safety and comfort. The
IS31/IS32CS8979 family delivers compact, cost-effective animated
lighting solutions tailored to specific requirements, eliminating
the need for multiple LED drivers and local microcontrollers.”
The IS31CS8979 is targeted at industrial consumer applications
while the IS32CS8979 is targeted at the automotive
exterior/interior lighting markets. Both controllers feature an
18-channel LED driver, e-Flash, SRAM and MCU/DSP all integrated
within a single 40-pin QFN package.
The IS31/IS32CS8979 are supported with evaluation boards,
software tools and GUIs (Graphical User Interfaces) to facilitate
the development of animation sequences, fine-tuning of lighting
effects, and adjustments to color gradients, timing, light
transitions, and more.
Availability
The IS31/IS32CS8979 are available now in mass production
quantities. The industrial/commercial IS31CS8979 is offered in a
QFN-40 package, priced at $1.48 in 1k quantities. The automotive
IS32CS8979 can be supplied with PPAP in accordance with AEC-Q100
and comes in a wettable flank WFQFN-40 package, priced at $1.59 in
1k quantities.
About Lumissil Microsystems
Lumissil Microsystems specializing in analog/mixed-signal
products for automotive, communications, industrial, and consumer
markets. Lumissil’s primary products are LED drivers for low to
mid-power RGB color mixing and high-power lighting applications.
Other products include audio, sensors, high-speed wire
communications, optical networking, and application specific
microcontrollers. Lumissil Microsystems has worldwide offices in
the US, Taiwan, Japan, Singapore, mainland China, Europe, Hong
Kong, India, and Korea. Website: https://www.lumissil.com
Ven Shan P: 408-969-4622 vshan@lumissil.com
Herbe ChunP. 408-969-5128hchun@lumissil.com
A photo accompanying this announcement is available at
https://www.globenewswire.com/NewsRoom/AttachmentNg/b4a42ade-bc0f-4e19-8c75-3920b60dd62e