NXP USA Inc.
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MMA5248LW
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MMA5248LW

Product Overview

The MMA5248LW is a 3-axis low-g accelerometer belonging to the category of motion sensors. It is commonly used in applications that require accurate measurement of acceleration, tilt, and motion detection. The device is known for its compact size, high sensitivity, and low power consumption. It is typically packaged in a small, surface-mount package and is available in various quantities to suit different production needs.

Specifications

  • Measurement Range: ±2g, ±4g, ±8g
  • Sensitivity: 800mV/g at 2g range
  • Operating Voltage: 1.95V to 3.6V
  • Low Power Consumption: 400μA at 1.56Hz ODR
  • Output Data Rate (ODR): 1.56Hz to 800Hz
  • Digital Output: I2C/SPI

Detailed Pin Configuration

The MMA5248LW features a standard 16-pin LGA package with the following pin configuration: 1. VDD 2. GND 3. INT1 4. INT2 5. SDA/SDI 6. SCL/SCK 7. CS 8. SA0 9. XOUT 10. YOUT 11. ZOUT 12. ST 13. NC 14. NC 15. NC 16. NC

Functional Features

The MMA5248LW offers high accuracy and resolution in measuring dynamic and static acceleration. It includes built-in features for motion detection, free-fall detection, and tilt sensing. The device also incorporates self-test functionality for enhanced reliability.

Advantages and Disadvantages

Advantages

  • High sensitivity and accuracy
  • Low power consumption
  • Compact size
  • Built-in motion detection features

Disadvantages

  • Limited measurement range compared to some other models
  • Requires careful handling due to its small size

Working Principles

The MMA5248LW operates based on the principle of capacitive micro-machined accelerometer technology. It utilizes a micro-electromechanical system (MEMS) structure to detect changes in capacitance caused by acceleration forces, which are then converted into digital signals for processing.

Detailed Application Field Plans

The MMA5248LW finds extensive use in various applications such as: - Portable consumer electronics - Wearable devices - Internet of Things (IoT) devices - Industrial equipment - Robotics

Detailed and Complete Alternative Models

Some alternative models to the MMA5248LW include: - MMA8452Q: A 3-axis accelerometer with a wider measurement range - LIS3DH: Another low-power 3-axis accelerometer with advanced features - ADXL345: A highly versatile 3-axis accelerometer suitable for diverse applications

In conclusion, the MMA5248LW is a versatile and reliable motion sensor that caters to a wide range of applications, offering high performance in a compact form factor.

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Перечислите 10 распространенных вопросов и ответов, связанных с применением MMA5248LW в технических решениях.

  1. What is the MMA5248LW?

    • The MMA5248LW is a low-power, three-axis accelerometer sensor designed for motion and orientation sensing applications.

  2. What are the key features of the MMA5248LW?

    • The key features include low power consumption, high sensitivity, digital output, and a wide operating voltage range.

  3. How is the MMA5248LW typically used in technical solutions?

    • It is commonly used in applications such as motion detection, gesture recognition, tilt sensing, and vibration monitoring.

  4. What is the operating voltage range of the MMA5248LW?

    • The operating voltage range is typically between 1.95V and 3.6V.

  5. Can the MMA5248LW be used for impact detection in industrial equipment?

    • Yes, the MMA5248LW can be utilized for impact detection in industrial equipment due to its high sensitivity and robust design.

  6. Is the MMA5248LW suitable for battery-powered devices?

    • Yes, the low power consumption of the MMA5248LW makes it well-suited for battery-powered devices.

  7. What communication interfaces does the MMA5248LW support?

    • The MMA5248LW supports I2C and SPI communication interfaces for easy integration into various systems.

  8. Are there any specific considerations for PCB layout when using the MMA5248LW?

    • It is important to follow the recommended layout guidelines provided in the datasheet to ensure optimal performance and noise immunity.

  9. Can the MMA5248LW be used for detecting vehicle movement and orientation?

    • Yes, the MMA5248LW can be employed for detecting vehicle movement and orientation, making it suitable for automotive applications.

  10. What are the typical output data rates supported by the MMA5248LW?

    • The MMA5248LW supports typical output data rates ranging from 1.56 Hz to 800 Hz, allowing flexibility for different application requirements.