SILICON CARBIDE FET SERIES OFFERS GREATER HARD SWITCHING IN EV CHARGING


TO-247-3L package. The FAST Series offers increased switching speeds and higher efficiency levels than their existing UJC3 Series. Based on the company’s cascode


U


nitedSiC has launched 650V and 1200V high-performance


silicon carbide FETs in a standard


configuration, this new series provides higher switching speeds while at the same time offering a ‘drop-in’ replacement solution for most TO-247-3L IGBT, Si-MOSFET and SiC-MOSFET parts. This means system upgrades for greater performance and efficiency can be


achieved without requiring changes to the existing gate drive circuitry. Turn-on losses can be reduced


based on a 50 percent reduction in Qrr. For high current use, a small, low-cost RC snubber is required, which also simplifies EMI design. Applications include the full


range of hard switched circuits such as active rectifiers and totem-pole PFC stages, commonly used in EV charging, telecom rectifiers and server supplies.


Built on UnitedSiC’s Gen-3 SiC


transistor technology, this series integrates a faster SiC JFET with a custom-designed Si-MOSFET to produce the ideal combination of normally-OFF operation, a high- performance body diode and easy gate drive of the MOSFET. The SiC cascode devices support


standard 12V gate drive, and have assured avalanche ratings (100 percent production-tested). www.unitedsic.com


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MICRO CAMERA MODULES OFFER EMBEDDED VISION FOR CONSUMER DEVICES


A miniature integrated Micro Camera Module (MCM) assembly with a tiny footprint at the image sensor end of just 1mm2


has been announced for


pre release by ams. The NanEyeM is easy to integrate into space-


constrained industrial and consumer designs, providing new embedded vision capabilities in products such as smart toys and home appliances. This device offers a high-resolution 100kpixel, 10-bit digital


readout, and features a Single-Ended Interface Mode (SEIM). Like a standard Serial Peripheral Interface (SPI), the SEIM channel is easy to implement in any host processor and provides a reasonably priced solution without the need for LVDS


deserialisation. The maximum frame rate over the SEIM interface is 58 frames/s at a clock rate of 75MHz. It features a custom multi-element lens which greatly


improves the effective resolution of the sensor and reduces distortion compared to competing sensors that have a single- element lens. The MTF (Modulation Transfer Function) is >50% in the corners, distortion is <15% and colour aberration is <1Px. The slave configuration in SEIM enables control of the frame


rate via the host application processor, down to rates of a single frame per second or even slower. Synchronisation of two or more cameras – a useful capability in applications such as eye tracking or stereo vision – can easily be performed by providing a centralised clock from the application processor. www.ams.com


ZF Switches and Sensors has developed a very efficient modular approach to speed and direction sensing. The hall-effect sensor’s modular design allows you to pre- select key sensor criteria including shaft length and output interface. Supplied with a plastic housing and mounting flange, all standard parts meet the requirements of IP67, and notably IP69 for harsh environmental conditions with ingress protection at depths of 20 to 60mm. The modular design offers users a range of housing lengths of 20, 35, 45 or 60mm with alternative shaft lengths available on request (up to 80mm).


www./switches-sensors.zf.com MEMS CLOCK GENERATOR T


he latest generation of touch controllers are


transforming the design of the industrial user interface, find out why on p8. Learn more about the ARM IoT vision of the future and the role it’s ecosystems partners are playing on p11.


Switching high loads on the PCB is becoming simpler than ever before on p12. Find out about the latest in high performance edge processing and building efficient deep- learning networks for


autonomous vehicles on p14. A focus on how to ensure optimal performance for NAND Flash on embedded MCUs features on p17 plus more news and views. Michelle Winny Editor


4 NOVEMBER 2018 | ELECTRONICS


A small scale MEMS clock generator has been released by Microchip. The DSC613 can replace up to three crystals and oscillators on a board, reducing timing component board-space by up to 80 percent. The device eliminates the need for an external crystal by integrating a low-power and high-stability Micro- Electro-Mechanical Systems (MEMS) resonator.


To support the range of frequencies


required in today’s smart devices, system designers need to either place multiple crystals/oscillators next to the controllers on a board or use a clock generator with an external crystal for the reference input. The DSC613 family is a true single-chip solution that integrates a MEMS resonator and two low-power Phase-Locked Loops (PLLs) into a 6-pin DFN package as small as 1.6 mm x 1.2mm. The compact package size and


extensive frequency flexibility makes this family well suited for compact devices that require low-power operation, such as digital cameras,


smart speakers, Virtual Reality (VR) headsets, streaming sticks and set-top boxes. This family supports up to three clock outputs from 2 kilohertz (kHz) to 100 megahertz (MHz), making it ideal for microcontroller-based embedded systems. In an IoT application, for example, the clock generator can be used to provide a MHz main reference clock and 32.768kHz Real-Time Clock (RTC) for the microcontroller (MCU), as well as another MHz clock for functions such as connectivity and sensors. The DSC613 family includes two low-power fractional PLLs with AnyRate clock synthesisers, which enable the device to generate any frequency between 2kHz and 100MHz. At approximately five milliamps (mA) power consumption with three outputs running, the family provides up to 45 percent power savings when compared to a solution that uses three low-power quartz oscillators. For additional power savings, the clock output can be turned off through the output enable pin. www.microchip.com/timing/DSC613


RS Components has added a new portfolio of advanced modules based on FPGAs and system-on-chip (SoC) ICs from Trenz Electronic. The ability of FPGAs and other powerful semiconductor devices to perform efficient processing in parallel is becoming very important to meet the demands of applications that are gathering and storing increasing amounts of data. Targeting use in a range of industrial applications, in addition to many scientific research areas, the Trenz modules are suitable for embedded vision, industrial cameras for monitoring and control, medical instruments, AFM (atomic force microscopy), and ASIC-emulation applications, among many others.


www.rs-online.com


Renesas Electronics Corporation has announced that Wi-SUN Alliance1 has adopted its sub-gigahertz (Sub-G) wireless solution as a candidate of the interoperability test bed units (TBUs) for the Wi-SUN FAN (Field Area Network) Certification Program. Renesas is part of the first wave of companies participating in the Wi-SUN FAN 1.0 certification process with its RAA604S00/RX651 wireless solution. Certifications are planned by the end of 2018.


www.renesas.com / ELECTRONICS


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