Bosch Sensortec, Akustica

Small footprint, very low power consumption Bosch Sensortec introduces next-gen electronic compass BMC150 Geomagnetic sensor and accelerometer in a single package

  • High precision measurement through Bosch FlipCore technology
  • Powerful interrupt engine offers high design versatility
  • Sensor data fusion software provides eCompass functionality
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  • January 14, 2013
  • Bosch Sensortec, Akustica
  • Press releases
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press release

With the new BMC150, Bosch Sensortec announces the second generation of its revolutionary electronic compass module. The new implementation again raises the bar in terms of package size, accuracy and versatility.

The BMC150 is a 6-axis electronic compass module based on Bosch's proven FlipCore technology which provides high accuracy and at the same time low power operation for longer battery life for smartphones, tablet computers and similar mobile devices. With a size of just 2.2 x 2.2 mm2 and a power consumption as low as 190 A it sets new standards for compactness and battery lifetime.

Design focus on package size and low power requirements
"Our focus for the BMC150 design was reducing the footprint and thus to help our customers to save valuable PCB real estate," comments Bosch Sensortec CEO Stefan Finkbeiner. "An equally important goal was increasing the measurement range. As the result, the BMC is the ideal eCompass module for innovative applications in battery-driven mobile devices such as smartphones, tablet computers and watches."

BMC150 combines a 3-axis geomagnetic sensor and a state-of-the-art 3-axis accelerometer in a single package. Its high integration translates into another benefit for users: It reduces the number of components that otherwise have to be handled and qualified separately. Both sensors form a logical and functional unit, since the g-vector generated by the accelerometer is required to calculate the tilt compensation for the azimuth data produced by the geomagnetic sensor. The accelerometer and the geomagnetic sensor in BMC150, however, can also be used as two fully functional independent devices.

Besides high integration, the sensor offers very high accuracy. Its exceptionally wide measurement range of +/- 1300 T per axis makes it more tolerant to stray magnetic fields associated to loudspeakers or other magnetic components in smartphones. On the other hand, its extremely low noise of just 0.3 T enables very accurate measurement.

Many applications for handheld devices such as user interface or navigation depend on an orientation vector. With eCompass library V3.0, Bosch Sensortec also offers a sensor data fusion software that performs the calculations for tilt compensation and thus generates precise heading information for compass applications. In cases where a highly dynamic orientation vector is indispensable such as augmented reality or games designers typically employ a gyro sensor to provide this information in a 9-axis sensor system. Along with Bosch Sensortec's FusionLib V3.0 algorithm, the 3-axis stand-alone gyro sensor BMG160 is the ideal complement to the BMC150.

Smart interrupt engine detects motion patterns
The inherent intelligence of the BMC150 helps to significantly reduce time to market for application developers. With its powerful and versatile interrupt system, the BMC150 greatly facilitates the design of a broad range of different applications. The integrated smart interrupt engine enables the sensor module to automatically identify motion patterns and situations. For instance, it detects free fall conditions, flat orientation on a table, tap sensing or even no motion at all for a definable period of time. These status data enable the implementation of many innovative features for mobile devices such as activating sleep mode and waking it up by tapping it with a finger.

Developers also benefit from the new FIFO buffer which acts as a temporary storage for measurement data until they are needed. This feature offloads the application processor further, effectively reducing the system's overall power consumption. The accelerometer section of the sensor can be adjusted to four different g ranges between +/- 2g and +/- 16g, enabling designers to select the g range that fits best their application.
The Bosch Sensortec BMC150 is available now.

Contact:
Tina Horstmann,
phone: +49 7121 35-35924

Bosch Sensortec GmbH is a fully owned subsidiary of Robert Bosch GmbH, dedicated to the consumer electronics world offering a complete portfolio of micro-electro mechanical systems (MEMS) sensors and solutions that enable mobile devices to feel and sense the world around them. Bosch Sensortec develops and markets a wide portfolio of MEMS sensors and solutions for smart phones, tablets, wearable devices and IoTS (Internet of Things & Services) applications.

The product portfolio includes 3-axis acceleration, gyroscope and geomagnetic sensors, integrated 6- and 9-axis as well as environmental sensors and a comprehensive software portfolio. Since its foundation in 2005 Bosch Sensortec emerged as the technology leader in the addressed markets. The Bosch Group has been the global market leader for MEMS sensors since 1998 and has to date sold more than 4 billion MEMS sensors.

For more information, go to www.bosch-sensortec.com.

The Bosch Group is a leading global supplier of technology and services. In 2013, its roughly 281,000 associates generated sales of 46.1 billion euros. (NB: Due to a change in accounting policies, the 2013 figures can only be compared to a limited extent with the 2012 figures). Its operations are divided into four business sectors: Automotive Technology, Industrial Technology, Consumer Goods, and Energy and Building Technology. The Bosch Group comprises Robert Bosch GmbH and its roughly 360 subsidiaries and regional companies in some 50 countries. If its sales and service partners are included, then Bosch is represented in roughly 150 countries. This worldwide development, manufacturing, and sales network is the foundation for further growth. In 2013, the Bosch Group invested some 4.5 billion euros in research and development and applied for some 5,000 patents. This is an average of 20 patents per day. The Bosch Group's products and services are designed to fascinate, and to improve the quality of life by providing solutions which are both innovative and beneficial. In this way, the company offers technology worldwide that is "Invented for life."

Further information is available online at www.bosch.com and www.bosch-press.com, http://twitter.com/BoschPresse.

PI7947 - January 14, 2013

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