Magnetometer BMM350

High accuracy. Low-noise. Unique field shock recovery feature

Coming soon

Coming soon: BMM350

Magnetometer

Losing orientation? Say goodbye thanks to the BMM350 digital pathfinder. It gets everyone to their destination, enables tracking of head movements and thus 3D audio for a personalized sound experience. In the AR/VR area we take up the struggle against motion sickness with the reduction of pixel latency. The 16-bit 3-axis magnetometer can be used in wearables and hearables, smartphones and tablets, AR and VR, and various vehicles. It is almost invisible due to its enormously small size (1.28mm x 1.28mm x 0.5mm) and has 20 times lower current consumption compared to its previous generation. BMM350 impresses with highest accuracy and ultra-low noise. The BMM350 is based on innovative TMR (tunnel magnetoresistance) technology and includes a unique field shock recovery feature. This capability makes the device very robust against external magnetic fields, ensuring high accuracy at all times.

Head orientation for 3D Audio

Indoor navigation

Reduced motion sickness in AR/VR

Positioning and speed detection

Technical data

Parameter	Technical data
Parameter Package dimensions	Technical data 1.28 x 1.28 x 0.5 mm³ wafer level chip scale package (WLCSP)
Parameter Operating range	Technical data -40 °C to 85 °C
Parameter Supply voltage	Technical data VDDIO: 1.72 V … 3.6 V VDD: 1.72 V … 1.98 V
Parameter Typical output noise rms 3dB BW = ODR/2	Technical data ± 190 nTrms (x,y axis) and ± 450 nT rms (z axis)
Parameter Sensitivity Temperature Drift (typ.)	Technical data ± -0.010 %/K
Parameter Average typical current consumption	Technical data 200 µA @ 100 Hz in normal mode
Parameter Magnetic field range, all axes	Technical data ± 2000 µT
Parameter Zero-field offset drift after soldering (typ.)	Technical data ± 25 µT
Parameter Sensitivity/gain error after soldering (typ.)	Technical data ± 1 %
Parameter Interface	Technical data I2C and I3C
Parameter TCO error (typ.)	Technical data ± 200 nT/K
Parameter Maximum sampling rate	Technical data 400 Hz (normal mode)

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Flyer

BST-BMM350-FL000

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Shuttle board flyer

BST-BMM350-SF000

Applications and solutions

Woman doing sports using hearables and smartwatch

Wearables & hearables

Smartwatches, wristbands, smart clothes and hearables: whether supporting your fitness through calorie counting or helping you orient yourself through navigation, our accurate and ultra-low power sensing solutions turn a regular wearable into your daily companion!

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Smartphones & tablets

Did you know that you most likely have a Bosch MEMS sensor in your pocket? More than every second smartphone and tablet worldwide contains at least one of these tiny helpers. Bosch MEMS sensors stabilize images, detect gestures and activities, and count your steps.

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AR & VR

AR and VR technologies can support gaming, learning, navigation and maintenance. Crucial requirements for a pleasant AR and VR experience are real-time motion detection, head movement tracking and precise sensor data fusion, which are enabled by our sensing solutions.

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Stories

Man and woman doing push ups with fitness trackers

Capturing the Moment - How smart sensors allow you to focus on the things that count

Capturing the moment and telling a story with a single image – that’s the passion of photographer Johannes Arnold. When searching for exciting subjects on the streets of Berlin, he has to fully focus on the surroundings and keep his hands free. This is made possible by his trusted companions: smart hearables. The built-in sensors from Bosch Sensortec allow users to make phone calls with ease and to operate smart devices by means of gestures or voice input.

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