LPS22HH - MEMS Pressure Sensor, 260-1260 hPa | STMicroelectronics
MPN: LPS22HH β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.5 | $2.50 |
| 10 | $2.25 | $22.50 |
| 100 | $1.95 | $195.00 |
| 500 | $1.75 | $875.00 |
| 1,000 | $1.55 | $1,550.00 |
Drop-in alternatives for LPS22HH β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
LPS22HB
β Drop-Inπ Reference alternative (not in catalog)
LPS22HH-QST
β Drop-Inπ Reference alternative (not in catalog)
BMP388
β Drop-Inπ Reference alternative (not in catalog)
BMP390
β Drop-Inπ Reference alternative (not in catalog)
MS5637
β Drop-Inπ Reference alternative (not in catalog)
LPS22HH Maximum Ratings & Electrical Characteristics
| Pressure Range | 260 to 1260 hPa |
| Resolution | 0.02 hPa (RMS) |
| Accuracy | Β±0.1 hPa (typical) at 25Β°C |
| Supply Voltage | 1.7V to 3.6V |
| Current Consumption | 12 Β΅A at 1 Hz ODR |
| Output Data Rate | 1 Hz to 200 Hz |
| Interface | I2C and SPI |
| I2C Address | 0x5C (default) or 0x5D (alternate) |
| FIFO Size | 100 samples |
| Temperature Sensor Accuracy | Β±0.5Β°C |
| Operating Temperature | -40Β°C to +85Β°C |
| Package | HLGA 2.0 x 2.0 x 0.7 mm |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Output Type | Digital (24-bit) |
LPS22HH Pin Configuration
| Pin 1 | VDD β Power supply (1.7V to 3.6V) |
| Pin 2 | GND β Ground |
| Pin 3 | SCL/SPC β I2C clock or SPI clock |
| Pin 4 | SDA/SDI β I2C data or SPI data in |
| Pin 5 | SA0/SDO β I2C address select or SPI data out |
| Pin 6 | CS β Chip select (active low) |
| Pin 7 | INT β Interrupt output |
| Pin 8 | NC β No connect |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
LPS22HH is suitable for 6 applications: Barometric Altimeter, Weather Station, Indoor Navigation, Wearable Fitness Tracker, Smart Home IoT, Smartphone Altimeter.
Barometric Altimeter
The LPS22HH's high resolution (0.02 hPa) enables precise altitude detection in drones and wearables. In a drone, the sensor is mounted on the flight controller PCB with a vent hole to ambient pressure. The I2C interface connects to the MCU, and the FIFO buffer reduces host polling. Compared to GPS, the barometric altimeter provides faster and more accurate vertical speed estimation, essential for stable hovering and landing. The low power consumption (12 Β΅A) extends flight time, and the small package fits compact drone frames.
Recommended
Weather Station
The LPS22HH provides accurate atmospheric pressure measurements (Β±0.1 hPa) for weather monitoring. In a weather station, the sensor is placed in a ventilated enclosure to avoid wind and rain. The SPI interface connects to a data logger, and the temperature sensor (accuracy Β±0.5Β°C) provides compensation. The wide pressure range (260-1260 hPa) covers all global atmospheric conditions. The sensor's low power allows battery-powered remote stations, and the FIFO stores data between transmissions.
Recommended
Indoor Navigation
The LPS22HH enables floor-level detection in indoor navigation systems. By measuring pressure changes, the sensor can detect floor changes of approximately 0.17 m, which is sufficient for most buildings. In a smartphone, the sensor is integrated with the IMU and uses sensor fusion algorithms to improve positioning accuracy. The I2C interface and small package allow easy integration. The low power consumption is critical for continuous operation in mobile devices.
Recommended
Wearable Fitness Tracker
The LPS22HH is used in fitness trackers to count stairs climbed and monitor elevation changes. Its small size (2.0x2.0x0.7 mm) and low power (12 Β΅A) are ideal for battery-powered wearables. The sensor is placed on the wrist, and the pressure data is processed by the MCU to detect stair climbing events. The FIFO buffer reduces host wake-ups, extending battery life. The temperature sensor provides additional environmental data.
Recommended
Smart Home IoT
The LPS22HH enables smart home devices to detect window/door opening and HVAC filter clogging. In a smart thermostat, the sensor monitors pressure changes to detect air filter blockage. The I2C interface connects to a low-power MCU, and the sensor operates in low-power mode with periodic wake-ups. The small package allows integration into compact devices. The wide supply voltage range (1.7-3.6V) supports battery operation.
Recommended
Smartphone Altimeter
The LPS22HH is used in smartphones for elevation tracking and emergency location. It provides accurate altitude data for E911 calls and fitness apps. The sensor is integrated into the phone's main board, with a small vent hole in the casing. The I2C interface and low power consumption are essential for continuous operation. The high resolution (0.02 hPa) enables stair climbing detection and floor-level navigation.
Recommended
Recommended Products Summary
Engineering reference data for LPS22HH β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | LPS22HB | BMP388 | BMP390 | MS5637 |
|---|---|---|---|---|---|
| Package | HLGA 2.0x2.0x0.7 mm | HLGA 2.0x2.0x0.7 mm | LGA 2.0x2.0x0.8 mm | LGA 2.0x2.0x0.8 mm | QFN 3.0x3.0x0.9 mm |
| Brand | STMicroelectronics | STMicroelectronics | Bosch Sensortec | Bosch Sensortec | TE Connectivity |
| Pressure Range | 260-1260 hPa | 260-1260 hPa | 300-1250 hPa | 300-1250 hPa | 10-1200 hPa |
| Resolution | 0.02 hPa | 0.01 hPa | 0.03 hPa | 0.03 hPa | 0.016 hPa |
| Accuracy | Β±0.1 hPa | Β±0.1 hPa | Β±0.5 hPa | Β±0.5 hPa | Β±0.5 hPa |
| Supply Voltage | 1.7V-3.6V | 1.7V-3.6V | 1.7V-3.6V | 1.7V-3.6V | 1.7V-3.6V |
| Current Consumption | 12 Β΅A at 1 Hz | 15 Β΅A at 1 Hz | 3.4 Β΅A at 1 Hz | 3.4 Β΅A at 1 Hz | 1 Β΅A at 1 Hz |
| Interface | I2C/SPI | I2C/SPI | I2C/SPI | I2C/SPI | I2C |
Key Differentiators
- Higher resolution than LPS22HB (vs LPS22HB)
- Lower power consumption than LPS22HB (vs LPS22HB)
- Wider pressure range than BMP388 (vs BMP388)
Design Notes
Ensure a vent hole (typically 0.5 mm) is placed in the PCB directly under the sensor's pressure port to allow ambient air to reach the sensing element. The vent hole should be protected with a mesh or membrane to prevent dust and water ingress. Place the sensor away from heat sources and high-airflow areas to minimize pressure and temperature errors.
Decouple the VDD pin with a 100 nF ceramic capacitor placed as close as possible to the sensor. For noisy power rails, add a 1 Β΅F capacitor in parallel. The LPS22HH operates from 1.7V to 3.6V, so ensure the supply voltage is within this range under all load conditions. Use a low-noise LDO if the supply is noisy.
Do not cover the vent hole with solder mask or conformal coating, as this will block pressure sensing. Also, avoid placing the sensor near vibrating components, as mechanical stress can affect readings. When using I2C, ensure the bus speed does not exceed 400 kHz (standard mode) or 1 MHz (fast mode plus) as specified in the datasheet.
Compliance Information
RoHS compliant per STMicroelectronics product page. Not AEC-Q100 qualified.
