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Miniature TVS diodes save space for bi-directional over-voltage protection

Fri, Apr 30, 2021

TVS diodes released by TDK extend the company’s portfolio of components for bidirectional overvoltage protection of I/O interfaces.

The CSP01005 and CSP0201 offer ESD protection but save space due the chip scale package (CSP) measuring just 400 x 200 micron2 (CSP01005) or 600 x 300 micron2 (CSP0201). The package height is just 100 micron.

The TVS diodes are designed for an operating voltage of 5.0V and a response voltage of 6.8V. The clamping voltages of the two new components are 7.2V at a peak pulse current of 8.0A or 8.0V at a peak pulse current of 16A.

The TVS diodes differ in their parasitic capacitances. There is the SD0201SL-GP101 (ordering code B74121G0050M060) which has a capacitance of 12 pF, and the SD01005SL-GP101 type (B74111G0050M060) which has a capacitance value of just 5.0 pF. Other features include a short response time and low leakage current of just 2.0nA at 3.3V.

The protective components are designed in accordance with IEC 61000-4-2 for an ESD contact discharge of up to 24kV. This figure exceeds standard requirements. Despite their size, the diodes can withstand a high surge current load of up to 8.0A according to IEC 61000-4-5 (8/20 µs).

The SD0201SL-GP101 and SD01005SL-GP101 TVS diodes can be used in a variety of applications in industry, smart homes and the IoT.

The small dimensions mean they are also suitable to protect wearables, smartphones, notebooks, tablets, smart watches or hearing aids.

TDK was established in 1935 to commercialise ferrite, a key material in electronic and magnetic products. Today, TDK’s comprehensive portfolio features passive components such as ceramic, aluminium electrolytic and film capacitors, as well as magnetics, high-frequency, and piezo and protection devices. The company also supplies sensors and sensor systems such as temperature and pressure, magnetic, and MEMS sensors. It also provides power supplies and energy devices and magnetic heads. Products are marketed under the product brands TDK, Epcos, InvenSense, Micronas, Tronics and TDK-Lambda.

TDK focuses on demanding markets in automotive, industrial and consumer electronics, and information and communication technology. The company has a network of design and manufacturing locations and sales offices in Asia, Europe, and in North and South America.

https://www.tdk-electronics.tdk.com/

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Mouser Electronics signs global distribution deal with QuickLogic

Tue, Apr 20, 2021

Embedded FPGA IP, low power, multi-core, voice-enabled SoCs and endpoint artificial intelligence (AI) from Quicklogic is now available from Mouser Electronics, following a global distribution agreement between the developers and the distributor.

The agreement means that Mouser now stocks QuickLogic’s EOS S3 microcontroller- and FPGA-based platform and its QuickFeather development kit.

The EOS S3 sensor processing platform is a multi-core SoC that enables an array of concurrent sensor applications, from basic to computationally demanding algorithms for smartphone, wearable, and IoT devices. EOS S3 integrates a low-power Arm Cortex-M4F microcontroller sub system and embedded FPGA (eFPGA) fabric, with optional sensory low power sound detect (LPSD) for on-chip voice recognition. The heterogeneous architecture enables designers to partition their software and use cases across the variety of cores to optimise a system for lowest power consumption.

The QuickFeather development kit is a small form factor system which enables the next generation of low power machine learning (ML) -capable IoT devices, explains Mouser. It is powered by the EOS S3 and is based on open source hardware. It is compatible with the Adafruit Feather form factor. The board is built around an open source software ecosystem, including SymbiFlow FPGA tools, Zephyr and FreeRTOS operating systems and Renode. Third-party software is available for sensor processing, voice, and AI/ML use cases, including SensiML and Google’s TensorFlow Lite for microcontrollers.

Mouser is a global authorised distributor, offering a wide selection of the newest semiconductors and electronic components which are in stock and ready to ship. To help speed customers’ designs, Mouser’s website hosts an extensive library of technical resources, including a Technical Resource Centre, along with product data sheets, supplier-specific reference designs, application notes, technical design information, engineering tools and other helpful information.

Mouser Electronics’ website is available in multiple languages and currencies and features more than five million products from over 1,100 manufacturer brands. Mouser offers 27 support locations worldwide and ships to 223 countries/territories from its distribution facilities in the Dallas, Texas, metro area in the US.

http://eu.mouser.com

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MEMS barometric pressure sensors have lowest noise pressure, says TDK

Thu, Apr 15, 2021

Claimed to achieve the industry’s lowest pressure noise of 0.4 Pa RMS and attain the industry’s lowest power consumption of 1.3 microA, the InvenSense ICP-10125 is the latest addition to the SmartPressure family of TDK’s MEMS barometric pressure sensors.

The ICP-10125 also ensures temperature stability with a temperature coefficient of ±0.5 Pa per degrees C.

The ICP-10125 combines a barometric pressure and a temperature sensor in a small 3.55 x 3.55 x 1.45mm chimney package with waterproofing gel, providing IPX8 waterproofing to 10 ATM. The uniform machined lid and chimney with groove enable easier handling at production and assembly of customer products, says TDK. The ICP-10125 can be used in fitness, smart watch, and portable devices for fitness activity monitoring, location tracking for E911 calls, and indoor/outdoor navigation (dead-reckoning, floor/elevator/step detection).

The capacitive MEMS architecture delivers lower power consumption and lower noise than competing pressure sensors technologies, says TDK. It also has low noise and low power consumption, making the ICP-10125 suitable for wearable fitness monitoring and battery powered IoT. It can measure height change as small as 85mm, less than the height of a single stair step.

Operating temperature range is -40 to +85 degrees C.

“ICP-10125 delivers high accuracy, low power, temperature stability, and waterproofing in a small package footprint targeting the wearable market,” said Uday Mudoi, director of product marketing at InvenSense, a TDK company. “It enables determination of accurate location of E911 calls, tracks changes in elevation for activity monitoring, and extends battery life of always-on motion sensing applications.”

InvenSense ICP-10125 is available now for worldwide distribution. TDK also offers a development kit (DK-10125) and evaluation platform, as well as software to support customer development. The ICP-10125 joins the ICP-10101 and ICP-10111 pressure sensor products in the SmartPressure family.

InvenSense is a TDK Group company, providing MEMS sensors for consumer electronics and industrial areas with integrated motion and sound devices. Its portfolio combines MEMS sensors, such as accelerometers, gyroscopes, compasses, and microphones with proprietary algorithms and firmware that intelligently process, synthesise, and calibrate the output of sensors, maximising performance and accuracy.

InvenSense’s motion tracking, audio and location platforms, and services can be found in mobile, wearables, smart home, industrial, automotive, and IoT products.

InvenSense is headquartered in San Jose, California and has offices worldwide.

https://invensense.tdk.com

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Farnell builds IoT development framework with ON Semiconductor

Tue, Apr 06, 2021

To remove development obstacles and to accelerate IoT innovation, Farnell and ON Semiconductor have developed a development framework to simplify building IoT-enabled devices.

Farnell, an Avnet company, is now shipping a range of ON Semiconductor products to support the framework developed by the manufacturer and Avnet, to help OEMs more rapidly develop end-to-end IoT devices.

The IoTConnect framework simplifies the process of building IoT-enabled devices through rapid prototyping, says Farnell.

“Avnet, via Avnet Silica and EBV Elektronik in Europe, and ON Semiconductor are offering solutions to meet the changing needs of OEMs and their customers. By leveraging expertise across the Avnet organisation, and working closely with ON Semiconductor, we’re are to provide new ways to help OEMs stay competitive, maximize revenue potential, and design with the right technologies to create secure IoT solutions,” says Lou Lutostanski, vice president of IoT, Avnet.

The first supported product from ON Semiconductor is the RSL10 sensor development kit, suitable for applications such as industrial wearable devices, asset monitoring and smart sensing. The development kit features what is claimed to be the industry’s lowest power flash-based Bluetooth Low Energy radio and an array of advanced environmental sensors, including an inertial sensor (three-axis accelerometer, three-axis gyroscope and a low power smart hub for motion sensing), a geomagnetic sensor and an ambient light sensor. The distributor offers the base version, the RSL10-SENSE-GEVK, and the RSL10-SENSE-DB-GEVK kit which has a debugger.

The ON Semiconductor range is available from Farnell in EMEA, Newark in North America and elememt14 in APAC.

ON Semiconductor supplies a portfolio of energy efficient, power management, analogue, sensors, logic, timing, connectivity, discrete, SoC and custom devices for customers in automotive, communications, computing, consumer, industrial, medical, aerospace and defence applications.

It has a network of manufacturing facilities, sales offices and design centres in key markets throughout North America, Europe and the Asia Pacific regions.

Farnell has over 80 years’ experience in the distribution of technology products and solutions for electronic system design, production, maintenance and repair. It uses this experience to support its broad customer base, from hobbyists to engineers, maintenance engineers and buyers, working with leading brands and start-ups to develop new products for market, and supporting the industry as it seeks to develop the current and next generation of engineers.

Farnell trades as Farnell in Europe, Newark in North America and element14 throughout Asia Pacific. It sells direct to consumers through a network of resellers and its CPC business in the UK.

Farnell is a business unit of Avnet, which has an extensive ecosystem that delivers design, product, marketing and supply chain expertise for customers at every stage of the product lifecycle.

http://www.farnell.com

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Miniature TVS diodes save space for bi-directional over-voltage protection

Mouser Electronics signs global distribution deal with QuickLogic

MEMS barometric pressure sensors have lowest noise pressure, says TDK

Farnell builds IoT development framework with ON Semiconductor

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