Siemens Introduces the TLE 4923 Hall IC Sensor; State-of-the-Art in Wheel Speed Sensing.CUPERTINO, Calif.--(BUSINESS WIRE)--Oct. 21, 1996--Siemens Components Inc. today introduced the latest sensor of the Siemens Hall Integrated Circuit (IC) family, the TLE TLE Temporal Lobe Epilepsy TLE The Living End (band) TLE Two Line Elements (for satellite tracking) TLE The Learning Equation TLE Taxe Locale d'Équipement 4923. The TLE 4923 demonstrates Siemens' competence as one of the world's leading Hall IC manufacturers. The new IC, with digital output, is used for non-contact speed and position measurement of ferromagnetic Refers to a material, such as iron and nickel, that can be easily magnetized. See MRAM. gear wheels and magnetic encoder wheels. Major applications for the TLE 4923 include wheel speed sensing and gearbox sensing. The TLE 4923 is a dynamic differential Hall effect sensor A Hall effect sensor is a transducer that varies its output voltage in response to changes in magnetic field. Hall sensors are used for proximity switching, positioning, speed detection, and current sensing applications. with all circuit components integrated onto a single chip, decreasing the probability of vibration problems. The dynamic differential sensing mode offers a 3 mm sensing airgap together with a low hysteresis hysteresis (hĭs'tərē`sĭs), phenomenon in which the response of a physical system to an external influence depends not only on the present magnitude of that influence but also on the previous history of the system. (15 Gauss) sensitivity for precise speed and position measurement capabilities. The external capacitor required for the highpass filter can be mounted directly onto the specially adapted leadframe of the device in order to keep costs down. In applications using a magnetic pole wheel, a biasing magnet is not required. For gear tooth sensing applications where a biasing magnet is required, the tolerances on the magnet and especially on its positioning, are not critical. The device is designed for the full temperature range of -40 to 170 degrees C (peak 190 degrees C). As specified by ISO (1) See ISO speed. (2) (International Organization for Standardization, Geneva, Switzerland, www.iso.ch) An organization that sets international standards, founded in 1946. The U.S. member body is ANSI. 9000 for road vehicles, electromagnetic interference See EMI. (EMI (ElectroMagnetic Interference) An electrical disturbance in a system due to natural phenomena, low-frequency waves from electromechanical devices or high-frequency waves (RFI) from chips and other electronic devices. Allowable limits are governed by the FCC. ) is achieved. A major feature for wheel speed applications is the current interface, which offers system cost reductions due to the two-wire technology. This, as well as the fact that the sensor is supplied as a stand-alone component makes it available for OEM (Original Equipment Manufacturer) The rebranding of equipment and selling it. The term initially referred to the company that made the products (the "original" manufacturer), but eventually became widely used to refer to the organization that buys the products and value added possibilities. Design considerations and total compensation of the piezo effects acting on the silicon die have allowed the TLE 4923 to be encapsulated in epoxy or injection molding. The TLE 4923 is currently available. In quantities of 1000 the product will list at $1.75. For further information, please call 800/77-SIEMENS ext. 742 (ask for M47P003). Siemens Components Inc. (SCI (Scalable Coherent Interface) An IEEE standard for a high-speed bus that uses wire or fiber-optic cable. It can transfer data up to 1GBytes/sec. (hardware) SCI - 1. Scalable Coherent Interface. 2. UART. ) with its headquarters in Cupertino, is a leading supplier of electronic components for automotive, communications, consumer electronics, data processing, smart cards and memory applications. SCI offers a broad portfolio of electronic components ranging from communications integrated circuits to lithium niobate crystals. The company is a leader in communications products, smart power products, embedded DRAM technology and custom optoelectronics. SCI represents the Siemens Semiconductor Group based in Munich, Germany, which had sales of approximately $3 billion worldwide in fiscal year 1994/95 as well as the Siemens Passive Components Group, which had sales of $1 billion during the same period. Additional information on the company is available at Siemens Web site at http://www.sci.siemens.com. CONTACT: Siemens Components Inc. Tamara Polahar, 408/777-4959 tamara.polahar@siecomp.com |
|
||||||||||||||
Printer friendly
Cite/link
Email
Feedback
Reader Opinion