 Figure 1 MPU-9250 device package |
 Figure 2 MPU-9250 schematic symbol |
What is MPU-9250？
MPU-9250 is a multi-chip module (MCM) consisting of two dies integrated into a single package.
- First die: 3-Axis gyroscope and the 3-Axis accelerometer.
- Second die: 3-Axis magnetometer.
The MPU-9250 directly provides complete 9-axis MotionFusion™ output. MPU-9250 is also designed to interface with multiple digital sensors, such as pressure sensors. MPU-9250 features three 16-bit analog-to-digital converters for digitizing the gyroscope outputs, three 16-bit analog-to-digital converters for digitizing the accelerometer outputs, and three 16-bit analog-to-digital converters for digitizing the magnetometer outputs. Other features include programmable digital filters, a precision clock, an embedded temperature sensor, and programmable interrupts.
Pin Configuration
| PIN NO. | LABLE | DESCRIPTION | |
| 1 | RESV | Reserved. Connect to VDDIO. | |
| 2-6 | NC | Not internally connected. May be used for PCB trace routing. | |
| 7 | AUX_CL | I2C Master serial clock, for connecting to external sensors | |
| 8 | VDDIO | Digital I/O supply voltage | |
| 9 | AD0 / SDO | I2C Slave Address LSB (AD0); SPI serial data output (SDO) | |
| 10 | REGOUT | 10 REGOUT Regulator filter capacitor connection. | |
| 11 | FSYNC | Frame synchronization digital input. Connect to GND if unused. | |
| 12 | INT | Interrupt digital output (totem pole or open-drain) | |
| 13 | VDD | Power supply voltage and Digital I/O supply voltage. | |
| 14-17 | NC | Not internally connected. May be used for PCB trace routing. | |
| 18 | GND | Power supply ground | |
| 19 | RESV | Reserved. Do not connect. | |
| 20 | RESV | Reserved. Connect to GND | |
| 21 | AUX_DA | I2C master serial data, for connecting to external sensors. | |
| 22 | nCS | Chip select (SPI mode only) | |
| 23 | SCL / SCLK | I2C serial clock (SCL); SPI serial clock (SCLK) | |
| 24 | SDA / SDI | I2C serial data (SDA); SPI serial data input (SDI) | |
Features
- GYROSCOPE
- Digital-output X-, Y-, and Z-Axis angular rate sensors
- Digitally-programmable low-pass filter
- Sleep mode current: 8µA
- Gyroscope operating current: 3.2Ma
- ACCELEROMETER
- Digital-output triple-axis accelerometer with a programmable full-scale range of ±2g, ±4g, ±8g and ±16g
- User-programmable interrupts
- Accelerometer normal operating current: 450µA
- Wake-on-motion interrupt for low power operation of applications processor
- MAGNETOMETER
- 3-axis silicon monolithic Hall-effect magnetic sensor with magnetic concentrator
- Output data resolution of 14 bit
- Full scale measurement range is ±4800µT
- Magnetometer normal operating current: 280µA at 8Hz repetition rate
Applications
- Handset and portable gaming
- Motion-based game controllers
- Wearable sensors for health
- Fitness and sports
- 3D remote controls for Internet connected DTVs and set top boxes, 3D mice
ALTERNATIVES OF MPU-9250
- LSM303AGRTR
- ICM-20602
- LSM6DS3TR
- LSM6DSMTR
- LSM6DS33TR
- ICM-20948
WHERE TO USE MPU-9250?
MPU-9250 Nine-Axis (Gyro + Accelerometer + Compass) MEMS Motion Tracking Device. The MPU-9250 is the company’s second generation 9-axis Motion Processing Unit for smartphones, tablets, wearable sensors, and other consumer markets.
How MPU-9250 work?
Figure 3 MPU-9250 Connections
The MPU9250 has an accelerometer, gyroscope, and a magnetometer. Fig.4 shows the connection diagram of the information that we can get from a MPU9250 are: yaw angle, pitch angle, and roll angle. SparkFun IMU board has MPU-9250 as shown in Fig.3. Supply for PMU-9250 can be provided directly from the ARDUINO board. SCL/SCLK (Serial Clock) and SDA/SDI (Serial DATA) pins of MPU-9250 is connected to ANALOG IN pins A4 and A5 respectively. To operate MPU-9250, dedicated library by kriswiner is required. MPU9250/MPU9250BasicAHRS.ino Demonstrate basic MPU-9250 functionality of MPU-9250. Link of the library is provided below.
kriswiner/MPU9250: https://github.com/kriswiner/MPU9250
2D-VIEW OF MPU-9250
Figure 4 2-D View of MPU-9250
Mechanical Parameters
| SYMBOLS | DESCRIPTION | DIMENSIONS IN MILLIMETERS | ||
| MIN | NOM | MAX | ||
| A | Package Thickness | 0.95 | 1 | 1.05 |
| A1 | Lead finger (pad) seating height | 0 | 0.02 | 0.05 |
| b | Lead finger (pad) width | 0.15 | 0.2 | 0.25 |
| c | Lead frame (pad) height | — | 0.15REF | — |
| D | Package width | 2.9 | 3 | 3.1 |
| D2 | Exposed pad width | 1.65 | 1.7 | 1.75 |
| E | Package length | 2.9 | 3 | 3.1 |
| E2 | Exposed pad length | 1.49 | 1.54 | 1.59 |
| e | Lead finger-finger (pad-pad) pitch | — | 0.4 | — |
| f (e-b) | Lead-lead (Pad-Pad) space | 0.15 | 0.2 | 0.25 |
| K | Lead (pad) to Exposed Pad Space | — | 0.35REF | — |
| L | Lead (pad) length | 0.25 | 0.3 | 0.35 |
| R | Lead (pad) corner radius | 0.075 | REF | — |
| s | Corner lead (pad) outer radius to corner lead outer radius | — | 0.25 REF | — |
| y | 0 | — | 0.07 | |
MPU-9250 Related Products Prices
MPU-9250
Parts Mfr. Description Stock Prices Buy Now
TDK InvenSense GYRO/ACCEL/COMPASS/9-AXIS 2000 $2.728 Lowest 
MPU-9150 TDK InvenSense GYRO/ACCELEROMETER 9-AXIS 24LGA 4495 $16.925 Lowest 
MPU-6500 TDK InvenSense IMU ACCEL/GYRO 3-AXIS I2C 24QFN 5947 $1.585 Lowest 
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