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A43E_EETimes-Eur-1-3V_2-375x10-875_Layout 1 2/5 NFC tag powers richer user interfaces HIGH VOLTAGE At Embedded World, NXP was demonstrating a new kind NFC tag, the NTAG I2C, offering not only a passive NFC Forum compliant contactless interface but also an I²C contact interface together with energy harvesting circuitry. Even with the appliance DC-DC Converters NEW! SA Series 100 to 1000 VDC out High Power 3 Watts Ultra Miniature Size 0.55" x 0.75" x 0.4" 100-1000 VDC Output Hi-Efficiency/Excellent Load Regulation Single Output with Center Tap Shown Actual Size Input Over Voltage/Over Temperature Protection Remote Shutdown • 100 to 1,000 VDC Outputs • Input Voltage, 5V, 12V, 24V, 28V DC Standard • Isolated - Input to Output • Ultra Miniature - 0.55"x 0.75"x 0.4" • Excellent Load Regulation • Hi Reliability/Custom Models •Military Upgrades/Environmental Screening Available www.picoelectronics.com For Full Product Specifications MILITARY • COTS • INDUSTRIAL DC-DC CONVERTERS & POWER SUPPLIES TRANSFORMERS & INDUCTORS PICOElectronics,Inc. 143 Sparks Ave, Pelham, NY 10803-1837 E-Mail: info@picoelectronics.com Pico Representatives Germany ELBV/Electronische Bauelemente Vertrieb E mail: info@elbv.de Phone: 0049 (0)89 4602852 Fax: 0049 (0)89 46205442 England Ginsbury Electronics Ltd. E-mail: rbennett@ginsbury.co.uk Phone: 0044 1634 298900 Fax: 0044 1634 290904 unplugged, the technician may figure out what the problem is and perform a firmware update, first downloaded to the user’s smartphone, then transferred to the appliance through the NFC chip to the microcontroller (powered by energy harvesting from the coil antenna as the reader is in proximity). Of course, registration and after-sales service with firmware updates could apply to just anything relying on a microcontroller, the NTAG I2C measures only 1.6x1.6x0.6mm in a quad flat package, with either 1k or 2k of user memory (of course this memory is not a limiting factor since data can be transferred directly to the appliance’s onboard memory). In fact, EnOcean’s energy harvesting switch study also demonstrated in Nuremberg was relying on this very special NFC tag for configuring the switch’s modes and functionalities during installation. This allows the installer to use the comfortable user interface of an NFC-enabled phone (the switch having none). NXP www.nxp.com Intelligent power driver handles extreme temperatures X-REL Semiconductor has unveiled what the company claims is the first monolithic isolated intelligent power driver for Silicon Carbide (SiC), Gallium Nitride (GaN) and Silicon power switches that is able to operate at extreme temperatures. The XTR26010 device targets motor drive, power conversion and high-voltage communication applications in aerospace, industrial, hybrid and electric vehicles, transportation, geothermal and oil and gas. Being able to properly drive normally-on (JFET, MESFET) as well as normally-off (MOSFET, JFET, BJT, SJT) transistors, the XTR26010 driver offers functional features that allow the increase of the applications safety whilst increasing the maximum switching frequency. The XTR26010’s features include isolated communication protocol between low-side and high-side drivers in order to prevent any possible cross-conduction in the application; independent monitoring of gate, drain and source terminals to detect any possible failure; on-chip Miller clamp with adjustable timing; possible pulsed drive for rapid turn-on of normally-off transistors; and on-chip soft shut-down switch. The implementation of Intelligent Power Modules (IPM) requires the minimization of parasitic inductances and capacitances between the driver and the power switch, as well as the minimization of the number of passive components to allow miniaturization as well as increased reliability. The XTR26010 is able to reliably operate from -60degC to well above +230degC, with expected lifetime of about five years at +230degC. X-REL Semiconductor www.x-relsemi.com Wireless power charging coils stick anywhere Würth Elektronik eiSos has added three new wireless power charging coils to its range of wireless power transfer coils, featuring a self-adhesive film on the back, making their assembly much easier for the user. The coils are unique with flexible ferrite shielding and are extremely thin at only 1mm. The thin and flexible carrier material is well suited for the suppression of interference above 1MHz. The charging coils have a high Q-factor and very low DC resistance, meaning that they are recommendedfor maximum efficiency power transfer of up to 5W. Wurth Electronics www.we-online.com www.electronics-eetimes.com Electronic Engineering Times Europe March 2014 47


EETE MAR 2014
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