Overview
The LSM303DLHC, produced by STMicroelectronics, is a system-in-package that integrates a 3D digital linear acceleration sensor and a 3D digital magnetic sensor. This ultra-compact module is designed for high-performance applications, particularly in the development of tilt-compensated compasses and other orientation-sensing devices.
The device features a wide range of configurable options, including dynamically selectable sensitivities for both the accelerometer and magnetometer, and supports I²C serial bus interface with standard and fast mode up to 400 kHz. It also includes power-down and low-power modes, as well as two independent programmable interrupt generators for free-fall and motion detection.
The LSM303DLHC operates over an extended temperature range from -40 °C to +85 °C and is available in a plastic land grid array (LGA) package, making it suitable for various environmental conditions.
Key Specifications
| Parameter | Specification |
|---|---|
| Linear Acceleration Full Scale | ±2g, ±4g, ±8g, ±16g |
| Magnetic Field Full Scale | ±1.3, ±1.9, ±2.5, ±4.0, ±4.7, ±5.6, ±8.1 gauss |
| Data Output | 16-bit |
| Interface | I²C serial bus (standard and fast mode up to 400 kHz) |
| Analog Supply Voltage | 2.16 V to 3.6 V |
| Operating Temperature Range | -40 °C to +85 °C |
| Package | Plastic land grid array (LGA-14) |
| Power Modes | Power-down mode / low-power mode |
| Interrupt Generators | 2 independent programmable interrupt generators for free-fall and motion detection |
| Additional Features | Embedded temperature sensor, embedded FIFO, 6D/4D-orientation detection |
Key Features
- 3 magnetic field channels and 3 acceleration channels
- Dynamically selectable sensitivities for accelerometer and magnetometer
- I²C serial interface supporting standard and fast mode up to 400 kHz
- Power-down mode and low-power mode for power saving
- 2 independent programmable interrupt generators for free-fall and motion detection
- Embedded temperature sensor and FIFO
- 6D/4D-orientation detection capabilities
- ECOPACK® RoHS and “Green” compliant
Applications
- Tilt-compensated compasses
- Map rotation and position detection
- Motion-activated functions and free-fall detection
- Click/double-click recognition and pedometers
- Display orientation and gaming/virtual reality input devices
- Impact recognition and logging, vibration monitoring and compensation
- Intelligent power-saving for handheld devices
Q & A
- What is the LSM303DLHC?
The LSM303DLHC is a system-in-package featuring a 3D digital linear acceleration sensor and a 3D digital magnetic sensor.
- What are the full scale ranges for the accelerometer and magnetometer?
The accelerometer has full scale ranges of ±2g, ±4g, ±8g, and ±16g, while the magnetometer has full scale ranges from ±1.3 to ±8.1 gauss.
- What interface does the LSM303DLHC use?
The LSM303DLHC uses an I²C serial bus interface supporting standard and fast mode up to 400 kHz.
- What is the operating temperature range of the LSM303DLHC?
The device operates over an extended temperature range from -40 °C to +85 °C.
- Does the LSM303DLHC support power-saving modes?
Yes, it supports power-down mode and low-power mode.
- What additional features does the LSM303DLHC include?
It includes an embedded temperature sensor, embedded FIFO, and 6D/4D-orientation detection capabilities.
- Can the magnetic and accelerometer blocks be controlled separately?
Yes, the magnetic and accelerometer blocks can be enabled or put into power-down mode separately.
- What are some common applications of the LSM303DLHC?
Common applications include tilt-compensated compasses, map rotation, position detection, motion-activated functions, and gaming/virtual reality input devices.
- Is the LSM303DLHC environmentally friendly?
Yes, it is ECOPACK® RoHS and “Green” compliant.
- How can the interrupt generators be configured?
The thresholds and timing of the interrupt generators are programmable by the end user.
