SKU: SENS-1146
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STMicroelectronics LIS331DLHTR LGA-16 3-Axis Accelerometer Sensor ROHS

₹289.00 (Inclusive of all taxes)
Out of Stock

The STMicroelectronics LIS331DLHTR is a high-performance, ultra-low-power 3-axis MEMS accelerometer in an LGA-16 package, featuring I²C/SPI digital interfaces for seamless integration with microcontrollers like Arduino, Raspberry Pi, ESP32, and STM32 for motion detection, orientation sensing, and shock monitoring.

Features

  • Ultra-low power consumption down to 10 µA in low-power mode for battery-sensitive IoT and portable devices.
  • High-performance 3-axis MEMS accelerometer with configurable full-scale ranges (±2g/±4g/±8g/±16g).
  • Integrated digital I²C and SPI interfaces with 16-bit data output for precise motion data acquisition.
  • Advanced programmable interrupt features for free-fall, motion detection, and 6D orientation sensing.
  • Robust LGA-16 package with high shock resistance, operating from -40°C to +85°C.

Out of stock

Description

The LIS331DLHTR is a MEMS-based linear accelerometer engineered for precision motion sensing in power-constrained applications. Its core sensing element utilizes a micro-machined capacitive structure to detect acceleration across three orthogonal axes, with internal signal conditioning providing a clean, high-resolution digital output.

The device integrates advanced power management, including a sleep-to-wake-up feature, making it ideal for always-on, motion-activated systems. Its programmable interrupt engine allows for efficient system-level response to specific motion events like free-fall or tap detection without constant polling by the host processor.

Key Features

  • Ultra-Low Power Operation: Consumes as little as 10 µA in low-power mode, enabling extended battery life in wearable and IoT sensor nodes.
  • High-Resolution Digital Output: Delivers 16-bit acceleration data via selectable I²C or SPI serial interfaces for accurate motion tracking.
  • Programmable Interrupt Engine: Features configurable interrupts for free-fall detection, wake-up on motion, and 6D/4D orientation recognition.
  • Built-In Self-Test: Includes a self-test function to verify the mechanical and electrical integrity of the sensor after assembly or in the field.
  • Wide Operating Range: Functions reliably across a full industrial temperature span from -40°C to +85°C.
  • High Shock Survivability: The MEMS structure and LGA package are designed to withstand high mechanical shock levels, ensuring durability.
  • Configurable Full-Scale: User-selectable measurement ranges (±2g, ±4g, ±8g, ±16g) provide flexibility for different application sensitivity requirements.
  • Sleep-to-Wake Feature: Allows the device to enter a very low-power sleep state and automatically wake upon detecting significant motion, optimizing system power.

Applications

  • Inertial measurement and motion control for drones, robotics, and industrial platforms.
  • Shock, vibration, and free-fall detection in asset tracking, logistics, and ruggedized handheld devices.
  • Screen orientation and gesture recognition in consumer electronics like smartphones, tablets, and wearables.
  • Wake-on-motion and activity monitoring for power-efficient IoT sensor nodes and smart home devices.
  • Condition monitoring and tilt sensing in industrial equipment and structural health monitoring systems.

Technical Specifications

Manufacturer Part NumberLIS331DLHTR
Sensor Type3-Axis Digital MEMS Accelerometer
InterfaceI²C, SPI
Full-Scale RangeSelectable: ±2g / ±4g / ±8g / ±16g
Output Resolution16-bit
Low Power Current10 µA (typical)
Operating Voltage2.16V to 3.6V
Operating Temperature-40°C to +85°C
Package TypeLGA-16 (3x3 mm)
Self-TestYes
Programmable InterruptsFree-fall, Motion Detection, 6D Orientation
CertificationRoHS Compliant

Frequently Asked Questions

What is the operating voltage range for the LIS331DLHTR accelerometer?

The LIS331DLHTR operates from a single supply voltage of 2.16V to 3.6V DC. This range makes it directly compatible with common 3.3V logic systems found on microcontrollers like ESP32, STM32, and Raspberry Pi, without requiring a level shifter.

How do I communicate with this sensor, and what interfaces are supported?

The sensor provides a digital output through both I²C and SPI serial interfaces, selectable via pin configuration. The I²C interface supports standard and fast modes, while the SPI interface operates in 4-wire mode. The 16-bit acceleration data for each axis is accessed through the device's internal registers.

What are the key features of the programmable interrupt system?

The integrated interrupt controller can be configured to generate signals for specific events, eliminating the need for constant polling. Key programmable interrupts include free-fall detection, wake-up on motion (inactivity detection), and 6D/4D orientation change recognition, which can be used to trigger system actions or wake a host processor from sleep.

Is this sensor suitable for battery-powered IoT applications?

Yes, its ultra-low-power design is ideal for IoT. In low-power mode, current consumption can be as low as 10 µA. Combined with the sleep-to-wake-up feature, the sensor can remain in a deep sleep state until motion is detected, dramatically extending battery life in wireless sensor nodes and portable devices.

Package Includes

  • 1 x STMicroelectronics LIS331DLHTR Accelerometer IC (LGA-16 package)

Additional Information

Weight 0.035 kg
Dimensions 1.2 × 0.9 × 0.2 cm