Wholesale Bosch Digital Pressure sensor BMP390 Manufacturer, Suppliers

Overview Specifications Models Delivery Information Manuals + Resources

The Bosch Digital Pressure Sensor BMP390 is a high-performance absolute barometric pressure sensor. Below is an overview:

Key Features

Compact Size

Features a 10-pin LGA package measuring 2.0mm × 2.0mm × 0.75mm, enabling easy integration into various small electronic devices.

Low Power Consumption

Average typical current consumption is only 3.2 µA at a 1Hz data rate, making it suitable for battery-powered devices such as smartphones and wearables.

High Accuracy

Pressure measurement range of 300-1250 hPa. Absolute accuracy of ±0.50 hPa at 0-65°C. Relative accuracy of ±0.03 hPa at 25-40°C and 700-1100 hPa, equivalent to ±25 cm height accuracy.

High Resolution

Features 24-bit resolution with root mean square (RMS) noise as low as 0.02 Pa at minimum bandwidth.

Wide Voltage Range

Supports supply voltages VDDIO from 1.2–3.6 V and VDD from 1.65–3.6 V.

Multiple Interfaces

Supports I²C and SPI interfaces for seamless communication with various microcontrollers.

Application Scenarios

Indoor Positioning

Enables precise indoor location tracking through high-accuracy pressure measurement, determining user floor levels. In emergencies, assists rescue teams in rapidly locating individuals in distress.

Navigation Enhancement

Can be used to augment GPS navigation, improving outdoor positioning accuracy. For instance, it provides better location assistance and navigation in mountainous areas or densely populated urban environments with tall buildings.

Fitness Tracking

By accurately detecting changes in altitude, it enhances the precision of fitness tracking. This includes calculating the number of stairs climbed, altitude changes during exercise, and more, enabling more accurate estimation of calorie expenditure.

Consumer Electronics

Widely integrated into smartphones, smartwatches, and smart earbuds to provide indoor positioning, fitness tracking, and altitude detection.

IoT Devices

Embedded in IoT equipment for environmental monitoring, such as tracking atmospheric pressure changes to support weather forecasting and agricultural environmental monitoring.

Drones

Enables precise altitude control for stable flight, enhancing safety and maneuverability.

Technical Data

Parameter	Specification
Operation range (full accuracy)	Pressure: 300...1250 hPa
Supply voltage VDDIO Supply voltage VDD	1.2 V ... 3.6 V 1.65 V ... 3.6 V
Interface	I²C and SPI
Average typical current consumption (1Hz data rate)	3.2 µA @ 1 Hz
Absolute accuracy pressure (typ.) P=300 ...1100 hPa (T=0 ...65 °C)	±0.50 hPa
Relative accuracy pressure (typ.) P=700...1100 hPa (T=25...40 °C)	±0.03 hPa (equivalent to ±25 cm)
RMS noise in pressure lowest bandwidth, highest resolution	0.02 Pa
Temperature coefficient offset (25...40°C at 900hPa)	±0.6 Pa/K
Longterm stability (12 months)	±0.16 hPa
Solder drift	< ±0.8 hPa
Maximum sampling rate	200 Hz
Package dimensions	10-pin LGA with metal lid 2.0 * 2.0 * 0.75 mm³

Models

Models: Bosch Digital Pressure sensor BMP390

Delivery Information

Delivery information typically includes delivery times, shipping methods, packaging, etc., which may vary depending on the seller and the location of purchase.

Downloads & Resources

Bosch Digital Pressure sensor BMP390 datasheet.pdf

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Frequently Asked Questions (FAQ)

What is the measurement range and accuracy of the BMP390 sensor?

The BMP390 sensor operates across a pressure range of 300 to 1250 hPa. It offers an absolute accuracy of ±0.50 hPa under 0-65°C and a relative accuracy of ±0.03 hPa under 25-40°C (equivalent to a height accuracy of ±25 cm).

How power-efficient is the BMP390 pressure sensor?

The BMP390 is highly optimized for low power consumption. At a 1Hz data rate, its average typical current consumption is only 3.2 µA, making it ideal for battery-operated wearable devices and smartphones.

What interfaces are supported for system integration?

The sensor supports both I²C and SPI digital communication interfaces, ensuring easy and seamless communication compatibility with a wide range of microcontrollers.

What are the dimensions and package type of the BMP390?

The BMP390 features a very compact 10-pin LGA package with a metal lid, measuring only 2.0mm × 2.0mm × 0.75mm, suitable for space-constrained electronics.

How does the BMP390 support indoor positioning and GPS navigation?

Due to its precise relative altitude detection (up to ±25 cm), it can pinpoint users down to specific floor levels indoors. Outdoors, it aids GPS tracking in high-density urban areas or mountain terrains by providing accurate altitude corrections.