IS32FL3761: Configurable 33×12 Matrix LED Driver for High Pixel Count Automotive Intelligent Signaling Displays

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Postmedia has not reviewed the content. by GlobeNewswire IS32FL3761: Configurable 33×12 Matrix LED Driver for High Pixel Count Automotive Intelligent Signaling DisplaysAuthor of the article: You can save this article by registering for free here. Or sign-in if you have an account.The IS32FL3761, a 33×12 (n=2~12) dot-matrix LED driver designed for automotive ISD applications, where hundreds of small-current LEDs must be driven, dimmed, and diagnosed with pixel-level precision. GNWUp to 16 devices on one I2C bus for over 6,300 individually addressable LEDsTHIS CONTENT IS RESERVED FOR SUBSCRIBERS ONLYSubscribe now to read the latest news in your city and across Canada.Exclusive articles from Barbara Shecter, Joe O'Connor, Gabriel Friedman, and others.Daily content from Financial Times, the world's leading global business publication.Unlimited online access to read articles from Financial Post, National Post and 15 news sites across Canada with one account.National Post ePaper, an electronic replica of the print edition to view on any device, share and comment on.Daily puzzles, including the New York Times Crossword.SUBSCRIBE TO UNLOCK MORE ARTICLESSubscribe now to read the latest news in your city and across Canada.Exclusive articles from Barbara Shecter, Joe O'Connor, Gabriel Friedman and others.Daily content from Financial Times, the world's leading global business publication.Unlimited online access to read articles from Financial Post, National Post and 15 news sites across Canada with one account.National Post ePaper, an electronic replica of the print edition to view on any device, share and comment on.Daily puzzles, including the New York Times Crossword.REGISTER / SIGN IN TO UNLOCK MORE ARTICLESCreate an account or sign in to continue with your reading experience.Access articles from across Canada with one account.Share your thoughts and join the conversation in the comments.Enjoy additional articles per month.Get email updates from your favourite authors.THIS ARTICLE IS FREE TO READ REGISTER TO UNLOCK.Create an account or sign in to continue with your reading experience.Access articles from across Canada with one accountShare your thoughts and join the conversation in the commentsEnjoy additional articles per monthGet email updates from your favourite authorsSign In or Create an AccountMILPITAS, Calif., Aug. 03, 2026 (GLOBE NEWSWIRE) — Lumissil Microsystems today announced the IS32FL3761, a 33×12 (n=2~12) dot-matrix LED driver designed for automotive ISD applications, where hundreds of small-current LEDs must be driven, dimmed, and diagnosed with pixel-level precision. These systems use dense arrays of low-current LEDs to render symbols, text, welcome animations, charge-status indicators, driver-assistance cues, and brand signatures on interior and exterior vehicle surfaces. The IS32FL3761 supports compact, individually addressable LED designs used in ISD panels, mini LED backlights, RGB dynamic ambient lighting, center-stack and cluster displays.The IS32FL3761 integrates 33 constant-current sinks and 12 integrated scan switches to support a configurable 33×n matrix (n = 2~12) of up to 396 individually addressable LEDs, or a 132-pixel RGB array, from one QFN-60 device. Each output channel supports up to 30mA programmable current and includes 8-bit global current control (GCC) plus 8-bit per-channel scaling (SL), allowing fine brightness balancing and color correction for enhanced display uniformity. That uniformity is backed by a current accuracy of ±5% channel-to-channel at 30mA, ensuring consistent brightness matching across the entire matrix.Get the latest headlines, breaking news and columns.By signing up you consent to receive the above newsletter from Postmedia Network Inc.A welcome email is on its way. If you don't see it, please check your junk folder.The next issue of Top Stories will soon be in your inbox.We encountered an issue signing you up. Please try againTo support smooth, high-quality animations and accurate color rendition, the device features selectable 12-bit, 8+4-bit, 8-bit, and 6+2-bit PWM dimming with frequencies up to 312kHz, enabling 4096-step gamma-corrected fades and breathing effects. This eliminates the visible stepping and audible artifacts typical of lower PWM frequencies, a persistent pain point in camera-adjacent automotive lighting modules. The same high-resolution dimming, combined with 8-bit per-channel SL current scaling, allows precise red, green, and blue intensity ratios to be maintained at every brightness level, preserving white-point accuracy and color fidelity. To reduce audible noise on MLCC decoupling capacitors and tame conducted EMI, the device combines 180-degree group phase shifting with programmable spread spectrum. Power efficiency is equally critical, the IS32FL3761 draws just 1.2mA typical quiescent current while remaining fully active and ready to animate, and only 0.6µA in shutdown, enabling welcome sequences and intelligent status indication without taxing the vehicle battery.Large LED matrices are subject to parasitic glow of off-state LEDs. To address this, the IS32FL3761 integrates a configurable discharge circuit known as de-ghosting. While dedicated open and short-detect bits for every LED in the matrix allow the host to pinpoint and report the exact location of a failed LED. A SYNC pin allows clock synchronization across multiple drivers, keeping scan timing consistent in multi-chip displays.“ISDs are redefining how a vehicle communicates with the world around it,” said Aaron Reynoso, Director of Analog Marketing. “The IS32FL3761 packs 396 dots of individually dimmable, fully diagnosable driver into a single 7mm×7mm package. That density lets our automotive customers build bigger, smoother, smarter signaling surfaces with fewer components, smaller boards, and faster time-to-market.”The IS32FL3761 operates from 2.7V to 5.5V and is AEC-Q100 qualified with Temperature Grade 1 (-40°C to +125°C). The device is available in mass production quantities in a QFN-60 (7mm×7mm) package. The ordering part number is IS32FL3761-QFLCA3-TR, supplied 2,500 units per reel. For ICs, evaluation board samples, reference designs, or general inquiries, please contact your Lumissil sales representative or authorized distributor.This advertisement has not loaded yet.This advertisement has not loaded yet, but your article continues below.About Lumissil MicrosystemsLumissil Microsystems specializes 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, Israel, and Korea. Website: https://www.lumissil.comNotice for the Postmedia NetworkThis website uses cookies to personalize your content (including ads), and allows us to analyze our traffic. 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