Серия акселерометров MXC6244AU

Общие характеристики

	Раздел	Акселерометры
	Рабочие оси
	Диапазон измерения
	Выходной интерфейс
	Напряжение питания
	Ток потребления
	Рабочая температура

Документация на серию MXC6244AU

±8g 2 Axis Accelerometer with Programmable Vibration Filter MXC6244AU APPLICATIONS  Inclination Sensing in High Vibration Environments  Motorcycle Fall-Down Detection  Off-Road Vehicle Roll Detection  Jet Ski Roll Detection  General Purpose Acceleration Measurements FEATURES  High accuracy 2-axis accelerometer: o 8g FSR, 1mg/LSB resolution o 0.3 mg/C offset drift over temperature o 0.5% Sensitivity matching over temperature  Programmable anti-vibration filter o Attenuation >60dB @ 50Hz o No sensor resonance  Internal angle detection circuit with 8 programmable thresholds and INT output  400kHz I2C Interface (1.8V compatible)  Built-in self-test functionality  Small, 6-pin 3 x 3 x 1 mm LCC package  Operates from 2.7 V to 5.5 V Supply  High reliability automotive process and package  RoHS compliant  Operates from -40C to +125C VDD 2-Axis Sensor SCK Signal Cond’g &A/D Trim & Cal Circuits SDA DSP, Vibration Filter Ref & Bias Gen 3-state Output Driver Clock & Timing Gen GND FIGURE 1. FUNCTIONAL BLOCK DIAGRAM DESCRIPTION The MXC6244AU is a complete 2 axis accelerometer system with a programmable internal anti-vibration filter. This filter can provide as much as 45dB attenuation above 25Hz, and 60dB attenuation above 50Hz (see “Response to Vibration” section). In addition, the device has 8 built in, I2C programmable angle thresholds. If the device orientation with respect to vertical exceeds the programmed threshold angle, the INT output changes state to alert the system to a tip-over or fall down event. This feature can offload the processor from the burden of continuously calculating angles. In the case of an INT, the processor can begin calculating angles to allow for user-defined algorithms to be implemented. A built-in self-test function can detect a fault in the internal sensor, and if triggered will cause the INT output to go to a high impedance state. The internal status of the sensor can be read via the I2C interface. The MXC6244AU uses MEMSIC’s proprietary thermal accelerometer technology. Because the sensing element uses heated gas molecules instead of a mechanical beam structure, the device is extremely robust and reliable, with 50,000g shock tolerance, no possibility of “stiction,” virtually no mechanical resonance, and very high accuracy over temperature. This makes the device extremely well suited to harsh or high vibration environments, where other sensors can exhibit false readings due to resonance or other errors. The MXC6244AU runs from a single 2.7V to 5.5V supply, and is packaged in a small 6-pin, 3 x 3 x 1 mm LCC package. Information furnished by MEMSIC is believed to be accurate and reliable. However, no responsibility is assumed by MEMSIC for its use, or for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of MEMSIC. MEMSIC, Inc. One Technology Drive, Suite 325, Andover, MA01810, USA Tel: +1 978 738 0900 Fax: +1 978 738 0196 www.memsic.com MEMSIC MXC6244AU Rev.C Page 1 of 15 Formal release date: 11/16/2016 INT  PDF

Документация на MXC6244AU 

Microsoft Word - MXC6244AU Datasheet Rev.C

Дата модификации: 16.11.2016

Размер: 735.2 Кб

15 стр.

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