STMicroelectronics extends brand protection with NFC tags featuring state-of-the-art on-chip digital signature

State-of-the-art technology protects high-value products journey through the supply chain and consumers with blockchain-compatible elliptic curve cryptography

Geneva, Switzerland – WEBWIRE

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Geneva, Switzerland, April 4, 2024 STMicroelectronics ST25TA-E NFC tag IC strengthens the security of digital product passports and blockchain-based applications by implementing state-of-the-art on-chip digital signature mechanism, TruST25 Edge.

Based on elliptic curve cryptography (ECC), running on an advanced asymmetric cryptographic engine embedded in the ST25TA-E, the new on-chip signature ensures the authenticity of an attached physical object. Combining both on-chip and off-chip digital-signature mechanisms, the new ST25TA-E NFC tag comprehensively protects against counterfeit and gray market activities and enhances opportunities for consumer engagement.

The ST25TA-E meets the high standards expected by luxury brands in particular and is ideal for protecting high-value products such as designer clothes and accessories, art, or other items that need a digital certificate. Tapping with an NFC-enabled smartphone can track the attached products entire journey through the supply chain to verify the provenance of individual products and assist security auditing.

The combination of strengthened authentication and on-chip user memory also lets brand owners deliver tailored consumer experiences. Customers can interact easily using a smartphone to access content stored on the tag and engage with the brand online, including securely registering and transferring ownership.

In blockchain-based applications, the TruST25 Edge ECC-based signature is natively supported by blockchain technology, ensuring immutability and transparency of data.

Further features of the ST25TA-E tag IC include partial and whole-memory protection by password in both read and write modes, permanent file locking to prevent rewriting, and anonymous mode to protect consumer privacy. In addition, support for Augmented NFC data exchange format (NDEF) enables simultaneous and native data transfer, initiated conveniently using a smartphone without needing to install an app.

Delivering the enhanced security of on-chip digital signatures, enabled by advanced ECC-based asymmetric cryptography, the ST25TA-E is convenient, secure, easy to use, and competitively priced from $0.325 for orders of 1000 pieces. Samples are available now and volume production is scheduled to start in August 2024.

ST will demonstrate the ST25TA-E NFC tag at RFID Journal Live, MGM Grand, Las Vegas, April 9-11, 2024, at booth 511.

For further information please visit www.st.com/luxury-st25tae

STMicroelectronics reveals flexible synchronous rectifier for efficient silicon or GaN converters

Helps simplify operation and save energy in industrial power supplies, portable-device chargers, and AC/DC adapters

Geneva, Switzerland – WEBWIRE

18400

Geneva, Switzerland, February 28, 2024 STMicroelectronics SRK1004 synchronous-rectifier controller eases the design and enhances the efficiency of converters built with silicon or GaN transistors, including industrial power supplies, portable-device chargers, and AC/DC adapters.

Capable of withstanding up to 190V at its sense input, the SRK1004 can be connected in a high-side or low-side configuration. Four variants let users avoid complex calculations by optimizing their design through device selection alone, selecting gate-drive voltage between 5.5V or 9V, with logic-level MOSFETs, standard MOSFETs, or GaN transistors. Suitable for noncomplementary active clamp, resonant, and quasi-resonant (QR) flyback topologies, the SRK1004 introduces a next-generation turn-off algorithm that simplifies operation and saves energy.

The features of this controller enable converters to provide a high output power rating within compact dimensions. The operating frequency can be up to 500kHz, allowing the use of small magnetic components as well as maximizing the benefits of wide-bandgap technology when using GaN transistors. The controller is fabricated in STs silicon-on-insulator (SOI) process, which ensures robust performance while permitting a tiny 2mm x 2mm DFN-6L package.

By operating with a supply voltage from 4V to 36V, the SRK1004 can be powered from a variety of standard industrial bus voltages. The wide input-voltage range also provides flexibility to adjust the step-down ratio for optimum efficiency. Also, with fast-acting short-circuit detection built-in, the controller helps build rugged and reliable equipment.

Of the four variants introduced, the SRK1004A and SRK1004B are configured for 5.5V gate-drive voltage and can be used with logic-level MOSFETs or GaN transistors. The SRK1004C and SRK1004D for 9V gate-drive voltage are suited to MOSFETs designed for standard gate-drive signals.

All variants of the SRK1004x synchronous rectification controllers are in production now and available from $0.45 for orders of 1000 units. The evaluation boards, EVLSRK1004A, EVLSRK1004B, EVLSRK1004C, and EVLSRK1004D, are also available to accelerate evaluation and design start with each type, at the budgetary price of $50.00.

For more information please go to www.st.com/srk1004

STMicroelectronics boosts IGBT ruggedness and efficiency with new 1350V series

STPOWER IH2 devices target industrial and induction-heating applications

Geneva, Switzerland – WEBWIRE

Geneva, Switzerland, September 4, 2023 STMicroelectronics has released a new class of IGBTs with an increased breakdown-voltage capability of 1350V and maximum operating temperature of 175C. The higher ratings ensure greater design margin, robust performance, and extended reliability under all operating conditions.

The new STPOWER IH2 series IGBTs also permit increased power-conversion efficiency. Favorable parameters include low saturation voltage, Vce(sat), which ensures low dissipation when the device is turned on. The freewheeling diode has low voltage drop and optimized turn-off energy that increases the efficiency of single-switch quasi-resonant converters operating at frequencies from 16kHz to 60kHz.

With their ruggedness and high efficiency, these IGBTs are ideal for induction-heating applications including domestic appliances such as kitchen hobs, inverter microwave ovens, and rice cookers. In a 2kW application, STs new IGBT devices can reduce power dissipation by up to 11%.

In addition, the Vce(sat) has a positive temperature coefficient and tight parameter distribution between devices helps simplify design and ease connecting multiple IGBTs in parallel to address high-power applications.

The first two devices in the series, the 25A STGWA25IH135DF2 and 35A STGWA35IH135DF2, are in production now and available in a standard TO-247 long-lead power package. Pricing starts from $1.39 for the STGWA25IH135DF2 and $1.69 for the STGWA35IH135DF2, for orders of 1000 pieces.

Please visit www.st.com/stpower-ih2-series-igbts for more information.

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.



For more information, please visit www.st.com/l99dlh32-led-driver.


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Michael Markowitz
Director Technical Media Relations
STMicroelectronics
(1) 781 591-0354
michael.markowitz@st.com

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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.