MMA6851LKWR2

Product Overview

Category

The MMA6851LKWR2 belongs to the category of motion sensors, specifically an accelerometer sensor.

Use

This sensor is used to measure acceleration and tilt in various applications such as automotive systems, industrial equipment, and consumer electronics.

Characteristics

• High sensitivity and accuracy
• Low power consumption
• Compact size
• Wide operating temperature range

Package

The MMA6851LKWR2 comes in a small, surface-mount package suitable for integration into compact electronic devices.

Essence

The essence of this sensor lies in its ability to provide precise measurements of acceleration and tilt, enabling the development of advanced motion-sensing applications.

Packaging/Quantity

The sensor is typically supplied in reels with a specified quantity per reel, ensuring convenient handling during manufacturing processes.

Specifications

• Measurement Range: ±2g, ±4g, ±8g
• Output Resolution: 12-bit
• Operating Voltage: 1.95V to 3.6V
• Operating Temperature Range: -40°C to +85°C
• Output Interface: I2C/SPI

Detailed Pin Configuration

The MMA6851LKWR2 features a standard pin configuration with dedicated pins for power supply, ground, and communication interfaces. The detailed pinout is as follows:

| Pin Name | Function | |----------|----------------| | VDD | Power Supply | | GND | Ground | | SDA | I2C Data Line | | SCL | I2C Clock Line | | CS | SPI Chip Select| | INT1 | Interrupt 1 | | INT2 | Interrupt 2 |

Functional Features

• High-resolution digital output
• Built-in self-test functionality
• Low noise and high stability
• Flexible output data rate options

Advantages and Disadvantages

Advantages

• Accurate measurement of acceleration and tilt
• Low power consumption
• Small form factor
• Wide operating temperature range

Disadvantages

• Limited measurement range compared to some other sensors
• Higher cost compared to lower-end accelerometers

Working Principles

The MMA6851LKWR2 operates based on the principle of microelectromechanical systems (MEMS) technology, where the movement of microscopic structures within the sensor generates electrical signals proportional to the applied acceleration.

Detailed Application Field Plans

Automotive Systems

In automotive applications, the sensor can be used for vehicle stability control, rollover detection, and impact sensing.

Industrial Equipment

For industrial equipment, the sensor can enable condition monitoring, vibration analysis, and tilt sensing in machinery.

Consumer Electronics

In consumer electronics, the sensor can be integrated into smartphones, wearables, and gaming devices for motion-based user interfaces and activity tracking.

Detailed and Complete Alternative Models

• MMA8452Q: Offers similar performance with a different measurement range.
• ADXL345: Provides comparable features with a different form factor and interface options.
• BMA250E: A lower-cost alternative with slightly reduced performance specifications.

In conclusion, the MMA6851LKWR2 accelerometer sensor offers high precision and reliability for measuring acceleration and tilt in various applications, making it a versatile choice for motion-sensing needs across different industries.

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