LIS3MDLTR - 3-Axis Digital Magnetometer | STMicroelectronics
MPN: LIS3MDLTR ✓ AktifLIS3MDLTR Ringkasan
A magnetometer is a sensor that measures the strength and direction of magnetic fields. In the context of consumer electronics and IoT, magnetometers are often used as electronic compasses to determine orientation relative to Earth's magnetic field. They are part of the broader category of motion and orientation sensors, which also includes accelerometers and gyroscopes. The LIS3MDLTR specifically provides a digital output, simplifying interface with microcontrollers and eliminating the need for external analog-to-digital converters.
Key features of the LIS3MDLTR include a wide supply voltage range of 1.9V to 3.6V, low power consumption with a typical current of 0.45 mA in high-resolution mode, and a selectable output data rate from 0.625 Hz to 1000 Hz. The device also includes an embedded temperature sensor, a programmable interrupt generator, and a self-test capability. These features enable precise magnetic field measurement while maintaining low power for battery-operated devices.
The LIS3MDLTR uses a MEMS (Micro-Electro-Mechanical Systems) technology with a magneto-resistive sensing element, providing high sensitivity and stability. The device includes a signal conditioning chain with an ADC, a digital filter, and a FIFO buffer to reduce host processor load. The I2C address is 0x1E (default) and can be configured via the SA0 pin. The SPI interface supports both 3-wire and 4-wire modes, offering flexibility in system design.
Typical applications include electronic compasses in smartphones and wearables, navigation systems, magnetic field mapping, and industrial position sensing. The LIS3MDLTR is also used in augmented reality (AR) and virtual reality (VR) headsets for head tracking, and in robotics for orientation detection. Its low power and small footprint make it ideal for portable and space-constrained designs.
When designing with the LIS3MDLTR, ensure proper PCB layout to minimize magnetic interference from nearby traces and components. Place the sensor away from ferrous materials and high-current paths. Use decoupling capacitors on the power supply pins and follow the recommended layout in the datasheet for optimal performance.
Pilihan pengganti yang segera untuk LIS3MDLTR — sama paket, pin-pin kompatibel. Bahagian paket yang berbeza memerlukan kerja ulang PCB diasingkan.
Varietas dalam siri ini
Model serupa yang kompatibel dengan pengganti yang segera LIS3MDLTR (sama faktor bentuk dan kaki) — berbeza dalam Interface, Output Data Rate, Package, Resolution, Supply Voltage.
LIS3MDL
✅ Masuk Drop-In📋 Alternatif rujukan (tidak dalam katalog)
LIS3MDLTR-Q1
✅ Masuk Drop-In ⚠️ Spesifikasi Tidak Disahkan📋 Alternatif rujukan (tidak dalam katalog)
LIS2MDLTR
⚡ Pekali yang sama ⚠️ Spesifikasi Tidak DisahkanHubungi untuk harga
Lihat Datasheet →MMC5603NJ
⚡ Pekali yang sama ⚠️ Spesifikasi Tidak Disahkan📋 Alternatif rujukan (tidak dalam katalog)
LIS3MDLTR Penilaian maksimum & Ciri-ciri Elektrik
| Sensing Axis | 3-axis (X, Y, Z) |
| Full-Scale Range | ±4 gauss, ±8 gauss, ±12 gauss, ±16 gauss |
| Pemecahkatan | 0.14 mG/LSB (at ±4 gauss) |
| Output Data Rate | 0.625 Hz to 1000 Hz |
| Antaramuka | I2C (up to 400 kHz) and SPI (up to 10 MHz) |
| Tegangan Pemberi Arus | 1.9 V to 3.6 V |
| Current Consumption | 0.45 mA (high-resolution mode) |
| Temperature Sensor | Embedded, -40°C to +85°C |
| Suhu Operasi | -40°C to +85°C |
| Kemasan | LGA-12 (2.0 x 2.0 x 1.0 mm) |
| Jenis Pemasangan | Surface Mount |
| Status RoHS | Compliant |
| REACH Status | Compliant |
| AEC-Q100 | Not qualified |
| Self-Test | Built-in |
Konfigurasi Pin LIS3MDLTR
| Pin 1 | VDD — Power supply |
| Pin 2 | VDD_IO — Power supply for I/O pins |
| Pin 3 | SCL/SPC — I2C clock / SPI clock |
| Pin 4 | SDA/SDI — I2C data / SPI data in |
| Pin 5 | SDO/SA0 — SPI data out / I2C address select |
| Pin 6 | CS — Chip select (active low) |
| Pin 7 | DRDY — Data ready output |
| Pin 8 | INT — Interrupt output |
| Pin 9 | GND — Ground |
| Pin 10 | GND — Ground |
| Pin 11 | GND — Ground |
| Pin 12 | GND — Ground |
Aplikasi Biasa
LIS3MDLTR patut untuk 6 aplikasis: Electronic Compass, Navigation Systems, Wearable Devices, Augmented Reality (AR) and Virtual Reality (VR), Industrial Position Sensing, Robotics.
Electronic Compass
The LIS3MDLTR is used in electronic compasses to determine heading by measuring Earth's magnetic field. Its high resolution of 0.14 mG/LSB and low noise enable accurate heading calculations. In a typical implementation, the magnetometer is combined with an accelerometer to provide tilt compensation. The I2C interface allows easy connection to a microcontroller, which processes the magnetic data to compute the compass bearing. The low power consumption of 0.45 mA ensures minimal impact on battery life in portable devices.
Disebarkan
Navigation Systems
In navigation systems, the LIS3MDLTR provides heading information that complements GPS data. The magnetometer's wide full-scale range of ±16 gauss allows it to operate in environments with varying magnetic fields. The SPI interface supports high-speed data transfer for real-time navigation updates. The device's small LGA-12 package fits into compact navigation modules. The embedded temperature sensor helps compensate for temperature drift, improving accuracy over a wide operating range.
Disebarkan
Wearable Devices
The LIS3MDLTR is ideal for wearables like smartwatches and fitness trackers due to its low power consumption and compact size. It enables features such as step counting, gesture recognition, and orientation detection. The device's 1.9V to 3.6V supply range is compatible with coin-cell batteries. The I2C interface simplifies connection to the main processor. The FIFO buffer reduces host processor load by storing data during low-power modes, allowing the system to wake up less frequently.
Disebarkan
Augmented Reality (AR) and Virtual Reality (VR)
In AR/VR headsets, the LIS3MDLTR provides head tracking by measuring the magnetic field to determine orientation. Its high output data rate of up to 1000 Hz ensures low latency for immersive experiences. The device's small size allows integration into the headset's compact form factor. The SPI interface enables fast data transfer to the application processor. The self-test feature allows system-level diagnostics to ensure reliable operation.
Disebarkan
Industrial Position Sensing
The LIS3MDLTR is used in industrial applications for position sensing and detection of magnetic fields. Its wide full-scale range and high resolution allow precise measurement of magnetic field variations. The device's robust operating temperature range of -40°C to +85°C makes it suitable for harsh industrial environments. The I2C interface allows easy integration with industrial controllers. The embedded temperature sensor aids in compensation for temperature-induced errors.
Disebarkan
Robotics
In robotics, the LIS3MDLTR provides orientation and heading information for navigation and control. Its low power consumption is beneficial for battery-powered robots. The device's small package allows integration into compact robot designs. The SPI interface supports high-speed communication with the robot's main controller. The self-test feature enables verification of sensor functionality during startup.
Disebarkan
Ringkasan Produk Disebarkan
Data referensi kejuruteraan untuk LIS3MDLTR — perbandingan, panduan rancangan, dan maklumat kesediaan
Panduan Pilihan
Perbandingan dengan Gantian
| Parametr | Produk Ini | LIS3MDL | LIS3MDLTR-Q1 | LIS2MDLTR | MMC5603NJ |
|---|---|---|---|---|---|
| Package | LGA-12 | LGA-12 (same) | LGA-12 (same) | LGA-12 (same) | LGA-12 (same) |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | MEMSIC |
| Full-Scale Range | ±4 to ±16 gauss | ±4 to ±16 gauss | ±4 to ±16 gauss | ±50 gauss | ±30 gauss |
| Resolution | 0.14 mG/LSB | 0.14 mG/LSB | 0.14 mG/LSB | 0.15 mG/LSB | 0.25 mG/LSB |
| Interface | I2C, SPI | I2C, SPI | I2C, SPI | I2C, SPI | I2C |
| Supply Voltage | 1.9V to 3.6V | 1.9V to 3.6V | 1.9V to 3.6V | 1.71V to 3.6V | 1.7V to 3.6V |
| Current Consumption | 0.45 mA | 0.45 mA | 0.45 mA | 0.5 mA | 0.6 mA |
| Automotive Grade | No | No | Yes (AEC-Q100) | No | No |
Penyeberangsung Jelas
- Higher resolution than LIS2MDLTR (vsLIS2MDLTR)
- Automotive grade option available (vsLIS3MDLTR-Q1)
- Wider full-scale range than MMC5603NJ (vsMMC5603NJ)
Catatan Desain
Place the LIS3MDLTR away from ferrous materials and high-current traces to avoid magnetic interference. Use a solid ground plane under the sensor and add decoupling capacitors (100 nF and 1 µF) close to the VDD and VDD_IO pins. Follow the recommended layout in the datasheet for optimal performance.
The LIS3MDLTR operates from 1.9V to 3.6V. Ensure the supply voltage is stable and within this range. Use a low-dropout regulator if the main supply is higher. The VDD_IO pin should be connected to the same voltage as the host microcontroller's I/O to ensure proper logic levels.
Avoid placing the sensor near magnets or current-carrying conductors that can saturate the magnetic field. The self-test feature can be used to verify sensor functionality during production. Also, ensure the I2C address is correctly configured via the SA0 pin to avoid address conflicts on the bus.
Maklumat Kesediaan
RoHS and REACH compliant per STMicroelectronics product page. Not AEC-Q100 qualified; use LIS3MDLTR-Q1 for automotive.
