New-Tech Europe Magazine | Dec 2017

new products

that closely match the human eye’s response to the visible light spectrum. The new sensor also accurately measures blue-light wavelengths, which researchers have linked to important health effects such as disruption or management of the circadian rhythm, accelerated eye aging, and eye strain. Provided in a compact 4.5mm x 4.7mm x 2.5mm land grid array (LGA) apertured package, the AS7264N’s small size makes it well suited for luminaires and connected sensor packs; it is expected to be used in emerging applications of human-centric lighting and smart building control. The new sensor is based on the successful ams AS72xx product platform which includes a complete family of light and color sensors from near-UV to near-IR for spectral and lighting applications. The family’s tri- stimulus color sensors use unique on-wafer silicon interference filters to create individual spectral channels matching the characteristics of the XYZ standard observer model as specified by the CIE 1931 standard. The AS7264N supplements that with two additional blue light filters, providing the capability to accurately measure the intensity of blue light at both the 440nm and 490nm wavelengths. The small, low-cost, board-mounted AS7264N allows the implementation of novel light control functions in luminaires, displays, and smart building automation or management systems. By incorporating an AS7264N into their product, lighting and building automation sensing solution manufacturers are able to deliver real- time smart color monitoring to measure and respond to end-users’ exposure to blue light wavelengths. Like other members of the AS72xx series, the AS7264N provides easy-to-use digital color measurement outputs over an I2C interface. The device’s silicon interference filters, which feature minimal drift over time and temperature, enable lifetime end-device calibration. Programmable on-chip LED drivers enable direct control of synchronized electronic shutter functionality. “With true color sensing and precise spectral measurements at wavelengths with active photobiological influence, the AS7264N serves a wide range of applications including ambient light characterization and light exposure data collection for commercial, residential, and industrial lighting applications. This solution will help manufacturers get to market quickly with applications that address the interaction between light and human health,” said Tom

With a footprint 60% smaller than a comparable circuit built from discrete components, the PWD13F60 can also boost end-application power density. By integrating four power MOSFETs, it presents a uniquely efficient alternative to other modules on the market that are typically dual-FET half-bridge or six-FET three- phase devices. Unlike either of these choices, only one PWD13F60 is needed to implement a single-phase full bridge, leaving no internal MOSFETs unused. There is also flexibility to configure the module as one full bridge or two half bridges. Leveraging ST’s high-voltage BCD6s-Offline fabrication process, the PWD13F60 integrates gate drivers for the power MOSFETs and the bootstrap diodes needed for high-side driving, which simplifies board design and streamlines assembly by eliminating external components. The gate drivers are optimized for reliable switching and low EMI (electromagnetic interference). The SiP also features cross-conduction protection and under-voltage lockout, which helps further minimize footprint while ensuring system safety. Further attributes of the PWD13F60 include a wide supply-voltage range, extending down to 6.5V for maximum flexibility and simplified design. In addition, the SiP inputs can accept logic signals from 3.3V to 15V to ensure easy interfacing with microcontrollers (MCUs), digital signal processors (DSPs), or Hall sensors. The PWD13F60 is available now, in a thermally efficient multi-island VFQFPN package, priced from $2.65 for orders of 1000 pieces.

ams tri-stimulus color sensor provides precise measurements of biologically influential blue light AMS, a leading worldwide supplier of high performance sensor solutions, today introduced the AS7264N, a tri- stimulus sensor which provides measurements of color

New-Tech Magazine Europe l 69