Overview
The LPS27HHWTR is an ultra-compact piezoresistive absolute pressure sensor produced by STMicroelectronics. This device functions as a digital output barometer, comprising a sensing element and an IC interface that communicates through I²C, MIPI I3CSM, or SPI. The sensing element detects absolute pressure and is manufactured using a dedicated process developed by ST, featuring a suspended membrane. The sensor is designed with a water-resistant package, including potting gel and a grounded metal cap, making it suitable for various applications.
Key Specifications
| Parameter | Value |
|---|---|
| Pressure Type | Absolute |
| Operating Pressure Min | 26 kPa |
| Operating Pressure Max | 126 kPa |
| Pressure Range | 260 to 1260 hPa |
| Supply Voltage Min | 1.7 V |
| Supply Voltage Max | 3.6 V |
| Supply Current | 4 μA (typical at VDD = 1.8 V, T = 25°C) |
| Output Type | Digital |
| Resolution | 24-bit |
| Interface | I²C, SPI, MIPI I3CSM |
| Operating Temperature Min | -40°C |
| Operating Temperature Max | 85°C |
| Storage Temperature Range | -40°C to +125°C |
| No. of Terminals | 10 |
| Moisture Sensitivity Level | MSL 3 - 168 hours |
| Dimension | 2.7 x 2.7 x 1.85 mm |
| Mounting Method | Surface Mount |
Key Features
- Ultra-compact piezoresistive absolute pressure sensor with digital output.
- Water-resistant package with potting gel and grounded metal cap.
- Embedded temperature compensation and 24-bit pressure data output.
- Output Data Rate (ODR) from 1 Hz to 200 Hz.
- Interfaces: I²C, SPI, MIPI I3CSM with embedded FIFO.
- Interrupt functions: data-ready, FIFO flags, pressure thresholds.
- Absolute accuracy over temperature: 0.5 hPa typical at (VDD = 1.8 V, T = 25°C).
- Temperature coefficient offset: 0.75 Pa/°C typical at (VDD = 1.8 V, T = 25°C).
Applications
- Altimeters and barometers for portable devices.
- GPS applications.
- Weather station equipment.
- Sports watches.
- E-cigarettes.
- Water depth monitoring.
- Gas metering.
Q & A
- What is the operating pressure range of the LPS27HHWTR?
The operating pressure range is from 26 kPa to 126 kPa, with an absolute pressure range of 260 to 1260 hPa.
- What are the communication interfaces available for the LPS27HHWTR?
The sensor communicates through I²C, SPI, or MIPI I3CSM interfaces.
- What is the supply voltage range for the LPS27HHWTR?
The supply voltage range is from 1.7 V to 3.6 V.
- What is the typical supply current of the LPS27HHWTR?
The typical supply current is 4 μA at (VDD = 1.8 V, T = 25°C).
- What is the operating temperature range of the LPS27HHWTR?
The operating temperature range is from -40°C to +85°C.
- What is the resolution of the pressure data output?
The resolution is 24-bit.
- Does the LPS27HHWTR have embedded temperature compensation?
- What are the interrupt functions available on the LPS27HHWTR?
The interrupt functions include data-ready, FIFO flags, and pressure thresholds.
- What is the moisture sensitivity level of the LPS27HHWTR?
The moisture sensitivity level is MSL 3 - 168 hours.
- What is the package type and dimension of the LPS27HHWTR?
The package type is CLGA-10L, and the dimension is 2.7 x 2.7 x 1.85 mm.
