Overview
The MPU-9255 is a system-in-package (SiP) that combines two chips: the MPU-6500 (3-axis gyroscope and 3-axis accelerometer) and an AK8963 (3-axis magnetometer). This integration provides 9-axis motion tracking capability while minimizing footprint and power consumption. Manufactured using MEMS technology, the device is designed for applications requiring precise orientation detection. It features programmable digital filters, embedded temperature sensors, and interrupt functionality for efficient system integration.
Structure and Working Principle
The MPU-9255 operates using micro-electromechanical systems (MEMS) that detect motion through capacitive sensing elements. The gyroscope measures angular velocity by detecting Coriolis forces, while the accelerometer senses linear acceleration through minute displacements of proof masses. The magnetometer uses Hall-effect sensors to detect Earth's magnetic field, enabling compass functionality. All sensors are factory-calibrated and include on-chip signal conditioning electronics that output digital data through either I2C (up to 400kHz) or SPI (up to 1MHz) interfaces.
Key Features
Key technical specifications include ±2000°/sec gyroscope range, ±16g accelerometer range, and ±4800μT magnetometer range. The device operates from 2.4V to 3.6V with typical current consumption of 3.6mA in full operation mode. Notable features include programmable digital filters (configurable low-pass, high-pass, and notch filters), 16-bit ADCs for each sensor channel, and an embedded 512-byte FIFO buffer that reduces host processor load. The package measures just 3x3x1mm, making it suitable for space-constrained applications.
Application Areas
Primary applications include drone flight controllers, where it provides essential stabilization data, and virtual reality systems that require precise head tracking. Industrial uses include robotics for orientation sensing and platform stabilization. The consumer electronics market utilizes MPU-9255 in smartphones (for screen rotation and gaming), wearable devices (for activity tracking), and camera stabilization systems. Automotive applications include navigation systems and electronic stability control units.
Maintenance and Precautions
The MPU-9255 requires minimal maintenance as it's a solid-state device. However, mechanical shock beyond 10,000g may damage the MEMS elements. Storage should be in dry environments (30-60% RH) at 10-30°C to prevent moisture absorption. For optimal performance, avoid strong electromagnetic fields during operation as they may affect magnetometer readings. When soldering, follow reflow profiles not exceeding 260°C peak temperature to prevent package damage. Regular calibration (especially for magnetometer) is recommended for critical applications.
B2B Procurement Guide
When procuring MPU-9255 modules in bulk, verify the supplier's authorization status with InvenSense (now TDK) to ensure genuine components. Lead times typically range 8-12 weeks, so plan accordingly. Consider ordering evaluation boards (available for approximately $50-$100) for prototype development. For high-volume purchases (10,000+ units), negotiate pricing and request factory calibration certificates. Check for RoHS compliance documentation and request samples to verify performance before large orders.
Related Manufacturers
- 主营：XILINX、INFINEON、ST、ON、TI 逻辑芯片、ADI、SAMSUNG、Micron原装内存、TDK、MICROCHIP、存储器、集成电路IC、电子元器件、存储IC、NAND Flash、南亚DRAM芯片、华邦Flash存储、BGA封装芯片、DDR4内存芯片、eMMC嵌入式存储、SLC NAND芯片、TSOP闪存颗粒、QFP微控制器、SOP-8存储IC
- 主营：ST/意法半导体、MOS管、二三极管、单片机
- 主营：丝印by5、控制板、stn4nf03l、acpm-7331、nxp专营、dtc114eua、稳压管、编码器、74hcu04db、microchip、丝印aaa、gtl2002dc、fs6370-01、74lvx02mx、放大器、定时器、hef4066bt、传感器、计数器、逆变器、电脑板、丝印zhl、保护器、abxsc70-6、稳压器
- 主营：压线钳、体脂秤、防尘袋、喷雾器、钢材机、电磁炉、修枝剪、蓄能器、圆度仪、液压钳、脚手架、测量仪、铁架台、铁夹子、报警器、切割机、控制器、打药机、端子钳、加油枪、嫁接刀、测试仪、水钻机、电子称、对刀仪
- 主营：回收库存电子元器件、回收电子IC芯片、回收库存电子呆滞料、回收GPS定位模块、回收蓝牙模块、回收MCU单片机、回收液晶屏、回收内存芯片、回收SSD固态硬盘、回收DDR、回收EMMC、回收LPDDR、回收GDDR5、回收但电容、回收电解电容、回收SMD贴片电容、回收滤波器、回收晶振、回收手机主板、回收手机配件、回收手机摄像头、回收平板电脑摄像头、回收电脑主板、回收CPU
- 主营：锂电池、稳压芯、射频管、射频器、传声器、电源稳、bom配单、电子料、比较器、功分器、驱动板、存储器、均衡器、触发器、缓冲器、继电器、解码器、集成电路芯片、二极管、三极管、电容电阻、电源、传感器、MOS管