Overview
The LIS331DLH, produced by STMicroelectronics, is an ultra low-power, high-performance three-axis linear accelerometer belonging to the "nano" family. It features a digital I2C/SPI serial interface, making it highly versatile for various applications. The device is designed to operate in ultra low-power modes, enabling advanced power saving and smart sleep to wake-up functions. It is capable of measuring accelerations with dynamically selectable full scales of ±2g, ±4g, and ±8g, and supports output data rates from 0.5 Hz to 1 kHz. The LIS331DLH is packaged in a small thin plastic Land Grid Array (LGA) and is guaranteed to operate over an extended temperature range from -40 °C to +85 °C.
Key Specifications
| Parameter | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|
| Supply Voltage (Vdd) | 2.16 | 2.5 | 3.6 | V |
| I/O Pins Supply Voltage (Vdd_IO) | 1.71 | - | Vdd+0.1 | V |
| Current Consumption in Normal Mode (Idd) | - | 250 | - | µA |
| Current Consumption in Low-Power Mode (IddLP) | - | 10 | - | µA |
| Current Consumption in Power-Down Mode (IddPdn) | - | 1 | - | µA |
| Digital High Level Input Voltage (VIH) | 0.8*Vdd_IO | - | - | V |
| Digital Low Level Input Voltage (VIL) | - | - | 0.2*Vdd_IO | V |
| High Level Output Voltage (VOH) | - | - | 0.9*Vdd_IO | V |
| Low Level Output Voltage (VOL) | - | - | 0.1*Vdd_IO | V |
| Output Data Rate (ODR) in Normal Mode | 50 | - | 1000 | Hz |
| Output Data Rate (ODRLP) in Low-Power Mode | 0.5 | - | 10 | Hz |
| System Bandwidth (BW) | - | - | ODR/2 | Hz |
| Turn-on Time (Ton) | - | 1/ODR+1ms | - | s |
| Operating Temperature Range | -40 | - | +85 | °C |
Key Features
- Ultra low-power mode consumption down to 10 µA
- Wide supply voltage range: 2.16 V to 3.6 V
- Low voltage compatible I/Os: 1.8 V
- I2C/SPI digital output interface
- 16-bit data output
- ±2g/±4g/±8g dynamically selectable full-scale
- 2 independent programmable interrupt generators for free-fall and motion detection
- Sleep to wake-up function
- 6D orientation detection
- Embedded self-test
- 10000 g high shock survivability
- ECOPACK® RoHS and "Green" compliant
Applications
- Motion activated functions
- Free-fall detection
- Intelligent power saving for handheld devices
- Pedometer
- Display orientation
- Gaming and virtual reality input devices
- Impact recognition and logging
- Vibration monitoring and compensation
Q & A
- What is the LIS331DLH's power consumption in low-power mode?
The LIS331DLH's power consumption in low-power mode is down to 10 µA.
- What are the dynamically selectable full scales of the LIS331DLH?
The LIS331DLH has dynamically selectable full scales of ±2g, ±4g, and ±8g.
- What are the supported output data rates of the LIS331DLH?
The LIS331DLH supports output data rates from 0.5 Hz to 1 kHz.
- Does the LIS331DLH support I2C and SPI interfaces?
Yes, the LIS331DLH supports both I2C and SPI digital output interfaces.
- What is the operating temperature range of the LIS331DLH?
The operating temperature range of the LIS331DLH is from -40 °C to +85 °C.
- Does the LIS331DLH have built-in interrupt generators?
Yes, the LIS331DLH has 2 independent programmable interrupt generators for free-fall and motion detection.
- Is the LIS331DLH RoHS and "Green" compliant?
Yes, the LIS331DLH is ECOPACK® RoHS and "Green" compliant.
- What is the resolution of the LIS331DLH's data output?
The LIS331DLH has a 16-bit data output resolution.
- Can the LIS331DLH detect 6D orientation?
Yes, the LIS331DLH supports 6D orientation detection.
- Does the LIS331DLH have a self-test capability?
Yes, the LIS331DLH has an embedded self-test capability.
