STMicroelectronics’ multi-pixel driver with CAN FD Light powers next-generation automotive lighting

Geneva, Switzerland – WEBWIRE

STMicroelectronics’ L99LDLH32 linear current regulator delivers a convenient, integrated solution for dynamic automotive lighting controlled using the lightweight CAN FD Light protocol. Ideal for use with OLED lamps that provide bright, homogeneous, and high-contrast lighting from a small surface area, the new driver lets designers produce complex light patterns and effects that enhance safety and styling.

With 32 regulated current sources, independently programmable from 1mA to 15mA, the L99LDLH32 can drive individual pixels in external and interior lighting applications. Global dimming is also provided, with 8-bit resolution. While powered at the vehicle battery voltage, the driver produces outputs of up to 35V to cover a wide emitter forward-voltage spread.

The integrated CAN FD Light protocol handler and transceiver simplify connection to the vehicle’s communication infrastructure and controlling domain ECU (electronic control unit). Based on proven industry standards, CAN FD Light’s synchronized commander/responder communication, conceived for controlling simple devices like lights and sensors, saves costly external components such as timing crystals. On the other hand, the data bandwidth of 1Mbit/s enables designers to create complex animated light patterns and permits smoothly modulated transitions and dimming.

In addition, on-chip memory cells allow programming of parameters such as current level and PWM dimming for stand-alone operation, to provide a failsafe mode to cover malfunctioning of the communication bus or controller. Targeting roles including safety-critical lighting such as taillights, stoplights, and turn indicators, the L99LDLH32 provides features for a high level of functional safety. These include a fault-status pin, voltage and temperature monitors, a programmable timeout watchdog, and short-circuit and open-load detection. In addition, frequency dithering minimizes electromagnetic emissions.

Monolithically integrated using ST’s BCD9sL process, the L99LDLH32 is AEC-Q100 qualified and ready to order on ST eStore. It is available as a 7mm x 7mm QFN48 device with wettable flanks and an exposed thermal pad to aid dissipation. Please contact your local ST sales office for pricing options and sample requests.

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STMicroelectronics delivers breakthrough in non-volatile memory with industry’s first Serial Page EEPROM –

Geneva, Switzerland – WEBWIRE

Geneva, June 21, 2022 – Building upon its proven expertise in serial EEPROM technology, STMicroelectronics has introduced the market’s first Serial Page EEPROM. This brand-new class of EEPROM is a high-density, page-erasable SPI memory that delivers unique and unprecedented flexibility and performance with ultra-low power consumption. Starting with the 32Mbit M95P32, ST will grow the new Serial Page EEPROM family by adding 16Mbit and 8Mbit density options in due course.


The innovative architecture gives designers the ability to mix firmware management and flexible data storage in the same device, a combination not previously available. This higher level of memory integration reduces bill of materials (BoM) and time-to-market, increases application value, and enables smaller modules with ultra-low power operation and thus longer battery lifetime. These devices are ideal for implementing all-in-one non-volatile memory in new system designs for applications such as industrial IoT modules, wearables, healthcare, medical, electronic shelf-edge labelling, smart meters, and 5G optical-fiber modules.


An entirely new development, Serial Page EEPROM combines ST’s patented e-STM 40nm non-volatile memory (NVM) cell technology with a new smart page architecture, bringing together the benefits of high memory density for firmware with byte flexibility and high endurance for simplified data logging. It also features fast read, erase, and program cycles, reducing manufacturing costs and application downtimes by enabling rapid upload and download. Fast power up and quad output read allow for faster application wake up.


This new simplified memory integration enables improved cost of ownership, offering ease-of-use, simple software development, and high reliability. Serial Page EEPROM offers a non-volatile memory solution that is less expensive than FRAM while offering lower power consumption, as well as enhanced functionality and greater ease of use compared with serial Flash and Dataflash products, respectively.


Please contact your ST sales office for pricing options and sample requests.