LSM6DSLTR
6-Axis Low-Power MEMS IMU · 0.4mA Current · ±2000dps / ±16g · LGA-14L · STMicroelectronics
| Part Number | LSM6DSLTR |
|---|---|
| Manufacturer | STMicroelectronics |
| Sensor Type | 6-Axis (3-Axis Gyro + 3-Axis Accel) |
| Gyroscope Range | ±125 / ±250 / ±500 / ±1000 / ±2000 dps (selectable) |
| Accelerometer Range | ±2 / ±4 / ±8 / ±16 g (selectable) |
| Current (LP Mode) | 0.4 mA typical (combo low-power mode) |
| Current (Normal Mode) | 0.65 mA typical |
| FIFO Buffer | 4 KB hardware FIFO |
| Motion Features | Pedometer, step detector, step counter, significant motion detection |
| Package | LGA-14L (2.5×3.0×0.83mm) |
| Supply Voltage | 1.71 V – 3.6 V |
| Operating Temperature | −40°C to +85°C |
| Supply Voltage (VDD) | 1.71 V – 3.6 V |
|---|---|
| VDDIO (I/O Voltage) | 1.71 V – 3.6 V |
| Current (Combo LP Mode) | 0.4 mA typical — lowest in LSM6DS series |
| Current (Combo Normal) | 0.65 mA typical |
| Current (Gyro-Only) | ~0.5 mA typical |
| Sleep Mode Current | < 5 µA |
| FIFO Buffer | 4 KB hardware FIFO with continuous modes |
| Interrupt Output | Pedometer, step detection, wake-on-motion interrupts |
| A/D Resolution (Gyro) | 16-bit |
| A/D Resolution (Accel) | 16-bit |
| Digital Interface | I²C up to 400 kHz, SPI up to 10 MHz |
|---|---|
| I²C Address | Selectable (0x6A or 0x6B via SA0 pin) |
| SPI Mode | Mode 0 or Mode 3 supported |
| FIFO Features | 4 KB, continuous, FIFO, bypass-to-FIFO modes |
| Interrupt Pin | INT1 and INT2, configurable for motion events |
| Self-Test | Built-in self-test for both gyro and accel |
| Embedded Functions | Pedometer, step counter, step detector, significant motion, tilt detection |
| Register Compatibility | Compatible with LSM6DS3 family register map |
| Pins | 14-pin LGA (SDI, SDO, SCLK, CS, SA0, INT1, INT2, VDDIO, GND, VDD, OCS, NC) |
| Part Number | LSM6DSLTR |
|---|---|
| Orderable Qty | 1 pcs – 10,000+ pcs |
| Price (1–9 pcs) | Contact for quote |
| Price (10–99 pcs) | Contact for quote |
| Price (100–499 pcs) | Contact for quote |
| Price (500+ pcs) | Best pricing available |
| Lead Time (stock) | 3–7 business days |
| Packaging | Tape & Reel (T&R) |
| RoHS Compliant | Yes (Pb-free) |
Please confirm exact parameters with manufacturer datasheet.
The LSM6DSLTR is the ultimate low-power 6-axis MEMS IMU from STMicroelectronics, offering the lowest power consumption in the entire LSM6DS product series. Combining a 3-axis gyroscope and 3-axis accelerometer in a compact LGA-14L package (2.5×3.0×0.83mm), this sensor draws only 0.4 mA in combo low-power mode and 0.65 mA in normal mode — making it the premier IMU choice for battery-operated endurance UAVs, long-duration survey drones, fixed-wing autopilot systems, and any UAV application where maximizing flight time is the primary design constraint.
What sets the LSM6DSLTR apart from other ST LSM6DS sensors is its combination of ultra-low power draw with embedded motion detection functions. The sensor includes a built-in pedometer, step detector, step counter, and significant motion detection hardware. While these features are traditionally associated with wearable devices, they have practical UAV applications — for example, the wake-on-motion capability allows a drone autopilot to remain in deep sleep until physical movement is detected, enabling zero-power standby modes for delivery drones and remote-sensing platforms that spend long periods in idle placement before mission deployment.
The sensor's 4 KB hardware FIFO buffer provides efficient batch data handling, reducing SPI/I²C bus traffic and CPU interrupt overhead — particularly valuable in multi-sensor flight controller designs where an STM32F405 or STM32L496 MCU manages multiple peripherals. With gyroscope range up to ±2000 dps and accelerometer range up to ±16 g, the LSM6DSLTR covers the full envelope of fixed-wing flight dynamics, from gentle survey cruise to gust-response stabilization. The tilt detection and significant motion interrupts are especially useful for autonomous UAV landing detection and launch sequence triggering.
As a secondary IMU in redundant autopilot designs, the LSM6DSLTR excels. Paired with a higher-precision primary IMU such as ICM-42688-V, the LSM6DSLTR can run continuously at reduced sample rates as a backup attitude sensor — consuming negligible battery power while providing essential redundancy for commercial UAV operations. The sensor supports both SPI (up to 10 MHz) and I²C (up to 400 kHz) interfaces with a selectable I²C address (0x6A or 0x6B), and operates reliably across the full industrial temperature range of −40°C to +85°C.
Key Features
- Lowest power consumption in ST LSM6DS series: 0.4 mA combo LP mode — ideal for endurance UAVs
- Built-in pedometer, step detector, step counter, and significant motion detection hardware
- Wake-on-motion interrupt — enables zero-power standby modes for delivery and survey drones
- Wide gyro range: ±125 to ±2000 dps — configurable for both gentle cruise and gust stabilization
- 4 KB hardware FIFO buffer — efficient batch reads reduce bus traffic in multi-sensor designs
- 16-bit resolution on both gyroscope and accelerometer — high precision attitude data
- Tilt detection and motion interrupts — useful for autonomous landing and launch sequencing
- Compact LGA-14L package (2.5×3.0×0.83 mm) — pin-compatible with LSM6DS3TR-C and LSM6DSO
- Wide operating voltage: 1.71V – 3.6V, industrial temperature −40°C to +85°C
Need LSM6DSLTR for Your Endurance Drone Project?
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The LSM6DSLTR is ST's most power-efficient 6-axis IMU. Please confirm exact ordering code and package specifications before production purchase. The LGA-14L package is pin-compatible with LSM6DS3TR-C and LSM6DSO, simplifying multi-sourcing strategies. For endurance UAV designs, pair with STM32L4 series MCU for maximum system-level power savings. Contact UAVCHIP for datasheet, application notes, and volume pricing for endurance UAV production.
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