Weartech-ICs & Semiconductors

GLF Integrated Power offers two versions of AEC-Q100 grade load switch ICs

Fri, Oct 07, 2022

Two versions of the IQSmart IC load switches are offered by GLF Integrated Power. The AEC-Q100 qualified ICs have a wide temperature range, with one version featuring true reverse current blocking.

The GLF1111Q and GLF1200Q low power load switches are rated for a wide temperature range (-40 to +125 degrees C). The GLF1111Q provides industry-leading, battery-saving leakage current of 2nA, typical, said GLF. 

The GLF1200Q features a true reverse-current blocking, which prevents a backup power source from being discharged when an input node is shorted. The GLF1200Q, therefore, works all of the time regardless of on or off state.

Applications for the GLF1111Q and GLF1200Q include infotainment and cluster display systems, diagnostic systems, passive entry / start systems, customer premise equipment (CPE), face recognition systems and intelligent cockpit and autonomous driving applications. 

Both the GLF1111Q and GLF1200Q IQSmart devices are packaged in a SOT-23-5L and offer easy visual inspection of solder joints. Both ICs also feature integrated slew rate control that limits inrush upon turn on, therefore minimising the effects of voltage droop. 

Each load switch IC supports a wide input voltage range of 1.5 to 5.5V. A single device can therefore be used in a variety of voltage rail applications, helping to simplify inventory management, said GLF. Both ICs are also offered with an optional output discharge switch.

“The GLF1111Q and GLF1200Q address the ever-expanding, evolving range of automotive electronic systems that require a high-performance load switch with a wide-ambient operating temperature range to assure reliable, long-term operations,” explained Eileen Sun, president and CEO at GLF Integrated Power.

GLF integrated Power is a fabless semiconductor company based in Santa Clara, California, USA. It was founded in 2013 in response to the IoT, portable and wearable ‘revolution’. The company supplies efficient, small, silicon power control and protection ICs and has developed IP that enables cost-effective, efficient and differentiated power management solutions.

http://www.glfipower.com

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eFuse ICs protect and control circuits in datacomms and industry

Thu, Oct 06, 2022

Four ICs have been developed by Littelfuse to protect, sense and control consumer, datacomms and industrial electronics. There are four eFuse Protection ICs available from Littelfuse.

The ICs are designed to provide a wide range of power input (3.3V to 28V) and integrated protection in the form of over-voltage, over-current, short circuit, inrush current, reverse current, and over-temperature protection with real-time diagnostics – all in a single chip.

The LS0504EVT233 is a 5V, 4A IC with over-voltage, over-current protection in an SOT23-3 package. The LS0505EVD22 is a 5V, 5A model with over-voltage and over-current protection in a DFN 2.0 x 2.0mm package. The LS1205ExD33 is an 18V, 5A IC with programmable current limit and output voltage clamp in a DFN 3.0 x 3.0mm package. The fourth model, the LS2406ERQ23 is a 28V, 6A true reverse block, fast role swap IC in a QFN 2.5 x 3.2mm package. 

The ICs can be used in Bluetooth headsets, wearable devices, PCs as well as tablets and notebooks, charging cables, battery-powered and adapter powered devices, networking and datacomms power systems, fan control HDD and SDD storage drives and industrial equipment with 12/24V power I/O.   

The ICs provide an accurate current limiter, with faster response time and more integrated protection features than traditional fuses and PTCs, claimed Littelfuse. They also have design flexibility with adjustable over-voltage threshold, current limiting, and inrush current protection, with true reverse current blocking. The integrated ICs save PCB space and reduce the bill of material cost, while reducing design-in phase and time to market compared to typical discrete solutions, such as a hot-swap controller and MOSFET combination, said the company.

They are also claimed to increase battery life, lower repair costs and extend overall product lifetime.

  “Providing a low power consumption, high accuracy current limiting circuit with quick response time makes them a win-win-win for many portable electronics and datacom applications,” said Bernie Hsieh, assistant product manager of the Protection Semiconductor business team at Littelfuse.

The eFuse Protection ICs are available in tape and reel format in quantities through authorised Littelfuse distributors worldwide. 

 http://www.Littelfuse.com

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NFC tags meet authentication security measures, says Infineon

Mon, Aug 08, 2022

Near field communication (NFC) tags released by Infineon Technologies meet high security requirements for proving authenticity. The NFC4TCxxx tags can protect consumer products to ensure they are not counterfeit to safeguard brand identity and revenue. In products such as pharmaceutical and food, the company pointed out, counterfeit products can pose a serious threat to consumer health and safety. 

The NFC4TCxxx tag includes an open standard security architecture using AES-128 cryptography. It is also equipped with inherent resistance to physical attacks such as differential power analysis (DPA) and differential fault analysis (DFA). 

The secured NFC tags have a range of memory options, from 304 bytes to 4kbytes, enabling brands to store data and create customised applications. 

The tags can be programmed with brand-specific landing pages that provide additional information about the product and also show the customer a list of similar products. They can also offer two-way communication between the consumer and the brand, direct users to exclusive offers and invitations to special events while helping brands to use customer analytics to optimise products and marketing.

Infineon has also introduced the NFC 2Go starter kit which demonstrates consumer product authentication enabled by Infineon’s secured NFC tags with an NFC smartphone. The kit includes NFC stickers, iOS and Android mobile apps, back end cloud authentication software, tag personalisation tools and a user guide.

The NFC4TCxx tags and the NFC 2Go starter kit for brand protection can be ordered now.

http://www.infineon.com

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Renesas’ SmartBond DA1470x SoCs are integrated for wireless connectivity

Wed, Jun 22, 2022

Renesas Electronics has announced the SmartBond DA1470x family of Bluetooth low energy (LE) integrated SoCs for wireless connectivity. 

Renesas claimed the DA1470x family to be the only device in the Bluetooth LE space to integrate a power management unit, a hardware voice activity detector (VAD), a graphics processing unit (GPU) and Bluetooth LE connectivity all into a single chip. 

This combined functionality provides smart IoT devices with advanced sensor and graphical capabilities and seamless, low power, always-on audio processing. The SoCs are suitable for wearables, such as smart watches and fitness trackers, glucose monitor readers and other consumer medical and healthcare devices, home appliances with displays, industrial automation and security systems, and Bluetooth consoles such as e-bikes and gaming equipment.

“The DA1470x family … enables developers to push the boundaries of connected consumer and industrial applications and future-proof their IoT products to fit the needs of multiple applications, while optimising their bill of materials,” commented Sean McGrath, vice president of the connectivity and audio business division in Renesas’ IoT, Industrial and Infrastructure business unit.

The high level of integration results in “significant cost savings” on the bill of materials (BoM), enabling cost-effective system solutions, according to the company. It also reduces component count on the PCB, enabling smaller form factor designs and freeing up space for additional components or larger batteries. With fewer components on the PCB, the reliability of the system improves, it claimed, delivering a further reduction in the total cost of goods sold (COGS) of the end product. 

The wireless SoCs feature a multi core system – with an Arm Cortex-M33 processor as the main application core and Cortex -M0+ as the sensor node controller.

An integrated 2D GPU and display controller supports DPI, JDI parallel, DBI and single  / dual / quad serial peripheral interfaces (SPIs) and there is a configurable Mac supporting Bluetooth LE 5.2 and proprietary 2.4GHz protocols. 

An integrated 720mA JEITA-compliant USB charger supports rechargeable Li-ion / Li-Po batteries, while an integrated low quiescent current SIMO DC/DC converter of the PMU supplies internal system and external components.

Low power hardware VAD enables seamless and always-on audio processing. 

The DA1470x family consists of four new devices, all of which are in mass production and available now. 

The DA14706 has already been used in the Xiaomi Mi band 7 wearable activity tracker with a 1.62-inch, 192×490 Amoled display, 120 sports modes and a 15-day battery life for typical use.

The DA1470x family will be demonstrated at Embedded World (21-23 June) in Nuremberg, Germany, at Booth Hall 1-234.

A provider of microcontrollers, Renesas combines its expertise in embedded processing, analogue, power and connectivity to deliver complete semiconductor solutions. These combinations accelerate time to market for automotive, industrial, infrastructure and IoT applications.

http://www.renesas.com 

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