Allegro MicroSystems, LLC Announces Three-Wire, True Zero-Speed, Surface Mount Magnetic Speed Sensor IC
June 29, 2016 by John Day
Allegro MicroSystems, LLC Announces New Three-Wire, True Zero-Speed, Surface Mount Magnetic Speed Sensor ICDesign Allows for Ease of Use for PCB Applications Over Typical SIP Based PackagesIn response for market requests for a highly integrated speed sensor with advance algorithm PCB mounted systems, Allegro has released the A1667 in a surface mount SOIC-8 package. This device provides a user friendly solution for highly compact ring magnet applications utilizing PCB mounting. This sensor is ideal for applications such as automotive transmissions and industrial equipment.
This sensor IC incorporates a dual element Hall IC that switches in response to differential magnetic signals created by a ring magnet. The IC contains a sophisticated compensating circuit designed to eliminate the detrimental effects of magnet and system offsets. Digital processing of the analog signal provides zero-speed performance independent of air gap and also dynamic adaptation of device performance to the typical operating conditions found in automotive applications (reduced vibration sensitivity). High-resolution peak detecting DACs are used to set the adaptive switching thresholds of the device. Hysteresis in the thresholds reduces the negative effects of any anomalies in the magnetic signal associated with the targets used in many automotive applications. The open-drain output is configured for three-wire applications.
In addition to the 8-pin SOIC surface mount package (suffix L), the A1667 is also available in a 4-pin SIP through-hole package (suffix K). Both packages are lead (Pb) free with 100% matte-tin-plated leadframes.
The A1667 (8-pin SOIC) is priced at $0.941 in quantities of 1,000.
Rand McNally launched a line of standalone dash cams that pairs top-of-the-line safety features with HD video and extra-wide-angle lenses.
The Rand McNally Dash Cam 100, Dash Cam 200, and the even more feature-rich Dash Cam 300 are designed to not only assist with accident and safety documentation, but capture video and photos from the road.
The three-layered display includes 84 individual controllable LEDs per headlamp that vary light distribution depending on traffic, weather and road conditions. The integrated adaptive High Beam Assistant Plus allows more frequent use of the vehicle’s high beams, offering greater safety and comfort.
“The multibeam LED headlamp is making important contributions to road safety,” notes Steffen Pietzonka, head of global marketing Original Equipment Lighting, HELLA KGaA Hueck & Co.
QNX Software Systems Limited, a subsidiary of BlackBerry Limited (TSX:BB)(NASDAQ:BBRY), announced the latest addition to its portfolio of automotive safety products, the QNX® Platform for Instrument Clusters.
Digital instrument clusters constitute one of the fastest-growing segments in automotive electronics. Using sophisticated 2D and 3D graphics, these devices can display traditional instrument cluster information, such as speed and RPM, as well as rich, context-sensitive information supplied by other vehicle subsystems, including turn-by-turn directions, local speed limits, rearview camera video and collision warnings. According to Strategy Analytics, the combined demand for hybrid and fully digital instrument clusters will increase from 8.7 million units in 2015 to 42.2 million by 2023.
June 17, 2016 by John Day
Texas Instruments (TI) introduced two new automotive motor drivers that support high-performance powertrain applications. The DRV8305-Q1, a highly integrated three-phase brushless DC gate driver, and the UCC27211A-Q1, a high-current half-bridge gate driver, improve system performance and provide design flexibility to meet a diverse range of automotive system requirements.
The resulting software layer will provide a path to standardization for connected cars. It will also enable better integration of insurance and fleet functionalities within the Java community already used by the world’s leading auto manufacturers, to facilitate data transfer from in-car sensors. This new data collection protocol will enable consistent high quality data collection and enhance driving analytics across all Java-based on-board units – including those delivered by leading global auto manufacturers. As a result, the standard will help to accelerate auto innovation with an approach that offers openness, tailoring and scale – enabling car manufacturers to more easily deliver cutting-edge connected car technology to their customers.