MEMSIC announces 624x family of acceleration sensors | Automation.com

MEMSIC announces 624x family of acceleration sensors

June 23, 2016 - MEMSIC Inc., a sensing solutions provider, announced a family of acceleration and tip-over sensor components that includes four sensors, the MXD6240 and 41AU, MXC6244AU, MXC6245XU. 

These sensors provide tip-over and acceleration sensing in a wide range of Automotive, Industrial and Consumer applications, such as motorcycle and off-road vehicle tip-over detection, vehicle navigation and Digital SLR camera horizontal position detection.

The 624x Family uses MEMSIC’s thermal accelerometer technology that utilizes heated gas molecules to sense acceleration instead of a mechanical beam structure, the transducer exhibits a low-pass frequency response with low mechanical resonance and high accuracy over a range of temperatures. This makes the devices well suited to harsh and/or high vibration environments, where competing sensor solutions can exhibit false readings or other errors due to resonance. 

The MXD6240 and MXD6241AU are autonomous inclination sensors with 8 built-in, pin-programmable tip-over angle thresholds from 40 to 70 degrees making them ideal for tip-over applications where no microcontroller is available. If the device orientation with respect to vertical exceeds the programmed threshold angle, the digital output changes state to alert the system to a tip-over or fall-down event. In addition to the transducer’s inherent low-pass response, an internal anti-vibration filter provides >45dB attenuation above 25Hz, and >60dB attenuation above 50Hz, setting it apart from all other tip-over sensors in the market.

The MXC6244AU and MXC6245XU are complete 2 axis I2C interface accelerometers each with 1 mg of resolution. The MXC6244AU is ±8g full scale range device. It includes the internal anti-vibration filter and the 8 angle thresholds. They are programmable through the I2C interface.

The MXC6245XU is a ±2g full scale range device and is targeted at cost sensitive applications not requiring the programmable anti-vibration filter or the 8 programmable tip-over angle thresholds. It offers 12 bits of resolution (1 mg) and has the same outstanding over temperature bias performance of typically 0.1 mg/C.

The 624x family offers a range of functionality, features and performance to serve the diverse needs of different applications. The autonomous MXD6240/41 is designed to eliminate the need for a micro controller and replace older mechanical pendulum solutions in motorcycles and off-road vehicles. The MXC6244AU can be used directly in Engine Control Units (ECUs) for the same application thereby allowing for the elimination of a separate tip-over module. 

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