austriamicrosystems presents AS5134, a high precision angle position sensor offering excellent performance in automotive applications

New AS5134 rotary encoder particularly designed to support commutation of brushless DC motors

Unterpremstaetten, (PresseBox) - austriamicrosystems (SWX: AMS), a leading global designer and manufacturer of high performance analog ICs for communications, industrial, medical and automotive applications, today expanded its successful magnetic rotary encoder family with the AS5134. This innovative rotary encoder IC is fully qualified to AEC-Q100 and specifically designed for brushless DC sensing in automotive applications in an ambient temperature range up to 150°C.

With an 8.5-bit resolution, the AS5134 can recognize 360 positions within one 360° turn and is accessible with either a serial or a PWM (Pulse-Width Modulation) interface. In addition, there are three differently programmable incremental outputs available, one of which delivers a three-phase commutation signal for brushless DC motors.
Another special feature is the programmability of 1 to 6 pole pairs. The AS5134 provides a "power saving mode" with a power consumption of less than 1.5mA and a fast start-up time to normal operation of less than 250 s.

Several features of the AS5134, including user-specific zero programming, a diagnostic function for correct positioning of the magnet, or the ability to recognize interruptions of the power supply are already standard in austriamicrosystems' entire encoder product family. The AS5134 additionally offers a "daisy chain" mode to read position data serially over a two wire bus.

"The proportion of brushless DC motors (BLDC) in automotive propulsion technology as well as in the industrial sector is increasing rapidly because the benefits of BLDC are as numerous as convincing. In addition to higher efficiency and longer service life, drives can be designed offering higher precision, better dynamic properties and more flexibility. The AS5134 was specifically developed to improve the performance of these BLDC motors," says Bernhard Czar, Marketing Director Automotive at austriamicrosystems.

Due to the wide ambient temperature range of -40°C to 150°C no additional temperature compensation and calibration of the device is required. The AS5134 is available in a lead-free SSOP-20 package. Product-specific information is available at .

Electronic picture and block diagram are available on request or at

ams AG

austriamicrosystems' business unit Full Service Foundry has successfully positioned itself in the analog/mixedsignal foundry market offering well-established RF CMOS, High-Voltage CMOS, BiCMOS and SiGe-BiCMOS processes. With superior support during the design phase, high-end tools and experienced engineers, austriamicrosystems succeeds to be an attractive analog foundry partner especially for fabless design houses.

austriamicrosystems is a leading designer and manufacturer of high performance analog ICs, combining more than 25 years of analog design capabilities and system know-how with its own state-of-the-art manufacturing and test facilities. austriamicrosystems leverages its expertise in low power and high accuracy to provide industry-leading customized and standard analog products. Operating worldwide with more than 1,000 employees, austriamicrosystems focuses on the areas of power management, sensors & sensor interfaces and mobile entertainment in its markets Communications, Industry & Medical and Automotive, complemented by its Full Service Foundry activities. austriamicrosystems is listed on the SWX Swiss Exchange in Zurich (ticker: AMS). For more information, please visit the web site at

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