Overview
The LPS25HBTR is a piezoresistive absolute pressure sensor developed by STMicroelectronics. It functions as a digital output barometer, comprising a sensing element and an IC interface that communicates through I2C or SPI protocols. The sensing element detects absolute pressure and is manufactured using a dedicated process that involves a suspended membrane. The device is packaged in a full-mold, holed LGA package (HLGA) and is designed to operate over a temperature range of -30 to +105 °C, allowing external pressure to reach the sensing element through the holed package.
Key Specifications
| Parameter | Specification |
|---|---|
| Pressure Range | 260 hPa to 1260 hPa |
| Sensor Type | Barometric / Altimeter |
| Output Type | Digital (I2C, SPI) |
| Supply Voltage | 1.7 V to 3.6 V |
| Supply Current | 25 µA (typical) |
| Package Style | HLGA-10 |
| Mounting Method | Surface Mount |
| Operating Temperature | -30 °C to +105 °C |
| Resolution | 0.01 hPa RMS (high-resolution mode) |
| Output Data Rate | 1 Hz to 25 Hz |
| Embedded Features | FIFO, Interrupt functions (Data Ready, FIFO flags, pressure thresholds) |
| Shock Survivability | 10,000 g |
| RoHS Compliance | Lead-free/RoHS Compliant |
Key Features
- Absolute Pressure Range: 260 hPa to 1260 hPa
- High-Resolution Mode: 0.01 hPa RMS
- Low Power Consumption: Low current modes available (e.g., 4 μA in low-resolution mode)
- High Overpressure Capability: Up to 20 times the full scale
- Embedded Temperature Compensation: Ensures accurate readings across the operating temperature range
- 24-bit Pressure Data Output: High precision data output
- Communication Interfaces: I2C and SPI
- Embedded FIFO and Interrupt Functions: Enhances data handling and system efficiency
- High Shock Survivability: Up to 10,000 g
- ECOPACK Lead-Free Compliant: Environmentally friendly packaging
Applications
The LPS25HBTR is suitable for a variety of applications, including:
- Altitude Measurement: In aviation, drones, and other aerial vehicles.
- Weather Monitoring: In weather stations and meteorological equipment.
- Industrial Automation: For pressure monitoring in industrial processes.
- Consumer Electronics: In smartphones, tablets, and other portable devices for altitude and weather applications.
- Automotive Systems: For tire pressure monitoring and other automotive applications.
Q & A
- Q: What is the pressure range of the LPS25HBTR?
A: The LPS25HBTR has a pressure range of 260 hPa to 1260 hPa.
- Q: What communication interfaces does the LPS25HBTR support?
A: The LPS25HBTR supports I2C and SPI communication interfaces.
- Q: What is the supply voltage range for the LPS25HBTR?
A: The supply voltage range for the LPS25HBTR is 1.7 V to 3.6 V.
- Q: What is the typical supply current of the LPS25HBTR?
A: The typical supply current of the LPS25HBTR is 25 µA.
- Q: What is the operating temperature range of the LPS25HBTR?
A: The operating temperature range of the LPS25HBTR is -30 °C to +105 °C.
- Q: Does the LPS25HBTR have embedded temperature compensation?
A: Yes, the LPS25HBTR has embedded temperature compensation.
- Q: What is the resolution of the LPS25HBTR in high-resolution mode?
A: The resolution of the LPS25HBTR in high-resolution mode is 0.01 hPa RMS.
- Q: Does the LPS25HBTR support FIFO and interrupt functions?
A: Yes, the LPS25HBTR supports embedded FIFO and interrupt functions.
- Q: Is the LPS25HBTR RoHS compliant?
A: Yes, the LPS25HBTR is lead-free/RoHS compliant.
- Q: What is the shock survivability of the LPS25HBTR?
A: The LPS25HBTR can survive shocks up to 10,000 g.
