Shenzhen Mingjiada Electronics Co., Ltd. has long specialised in the supply and recycling of the BMA456 Bosch three-axis accelerometer chip. With deep expertise in the supply chain services for drone, consumer electronics and Internet of Things (IoT) sensor components, we provide a one-stop service—including the procurement of genuine, in-stock products and the recycling of obsolete inventory—to a wide range of drone R&D manufacturers, solution providers and factories.
About the BMA456 Bosch Accelerometer
I. Overview of the BMA456 Chip
The BMA456 is a 16-bit digital three-axis MEMS accelerometer launched by Bosch Sensortec. It utilises an ultra-compact LGA-12 package, measuring just 2 mm × 2 mm with a height of 0.65 mm. The chip features an intelligent on-chip motion-triggered interrupt function and is optimised for wearable devices, whilst also being widely used in consumer electronics sectors such as drones, robotics, AR/VR, smartphones and the Internet of Things (IoT).
The BMA456 offers 16-bit resolution, with noise as low as 120 μg/√Hz. Its total offset over the entire lifetime is just 20 mg, and its temperature coefficient of offset (TCO) is ±0.3 mg/K, ensuring accurate measurements even in varying temperature environments. The chip supports programmable acceleration ranges of ±2g, ±4g, ±8g and ±16g, with an output data rate of up to 1.6 kHz.
II. Key Advantages of the BMA456 in Drone Applications
Drone flight control systems impose stringent requirements on the accuracy, stability, power consumption and size of accelerometers. Thanks to the following characteristics, the BMA456 is an ideal choice for attitude detection in drone flight control systems:
1. Ultra-compact package, suited to lightweight drone designs
Drones, particularly small drones and racing drones, are extremely sensitive to the size and weight of components. The BMA456’s ultra-small 2 mm × 2 mm package and ultra-low profile of 0.65 mm allow for easy integration into flight control boards with limited space, contributing to lightweight drone designs.
2. High precision and low noise, ensuring stable flight attitude
Drones are subject to continuous vibrations and airflow disturbances during flight. The BMA456’s low noise density of 120 μg/√Hz and high 16-bit resolution enable it to accurately capture even the slightest changes in the aircraft’s attitude. As the global market leader in MEMS sensors, Bosch has sold over 23 billion MEMS sensors since 1995, with the quality and performance of its products having been extensively validated.
3. Wide measurement range to accommodate diverse flight scenarios
The BMA456 supports a programmable acceleration range from ±2g to ±16g, covering a wide variety of operating conditions for drones, from hovering to high-speed manoeuvring. The high ±16g range is sufficient to handle the high acceleration impacts generated during violent manoeuvres and emergency obstacle avoidance.
4. Low-power design to extend flight endurance
Drones are extremely sensitive to power consumption. The BMA456 has a typical power consumption of just 14 μA at a 50 Hz data output rate, and only 150 μA during full operation. These ultra-low power characteristics help to extend the drone’s flight endurance.
5. On-chip intelligent interrupts to simplify flight control algorithms
The BMA456 integrates on-chip intelligent functions such as motion-triggered interrupts, motion/no-motion detection and tilt detection. These functions assist the drone in implementing intelligent controls such as attitude-based wake-up, fall detection and stationary sleep mode, thereby reducing the computational load on the main control chip.
6. Wide Operating Temperature Range, Suitable for Outdoor Flight
Drones often fly outdoors under a variety of climatic conditions. The BMA456 supports a wide operating temperature range of –40°C to 85°C, enabling it to adapt to a wide range of outdoor flight environments, from extreme cold to high temperatures.
III. Key Technical Specifications of the BMA456
Brand: Bosch Sensortec
Type: Digital three-axis MEMS accelerometer
Resolution: 16-bit
Acceleration range: ±2g / ±4g / ±8g / ±16g (programmable)
Noise Density: 120 μg/√Hz
Total Offset (Lifetime): 20 mg
Temperature Coefficient of Offset (TCO): ±0.3 mg/K
Package: LGA-12 (2 mm × 2 mm × 0.65 mm)
Digital Interface: I²C, SPI (4-wire, 3-wire)
Supply voltage: 1.62 V to 3.6 V
Operating temperature: –40 °C to 85 °C
Power consumption: 14 μA (typical, 50 Hz ODR) / 150 μA (full operation)
FIFO buffer: 1 KB
Features: adjustable bandwidth, selectable low-pass filter, temperature sensor, on-chip interrupt
IV. Typical Application Scenarios for the BMA456 in Drones
Flight Control Attitude Estimation: Provides real-time three-axis acceleration data to the flight control system to assist attitude fusion algorithms
Vibration Monitoring and Suppression: Detects abnormal vibrations during flight to assist active vibration suppression
Fall Detection and Protection: Detects accidental falls of the drone and triggers protective mechanisms
Smart Sleep and Wake-up: Enables low-power standby and rapid wake-up via motion detection
Take-off/Landing Detection: Precisely detects attitude changes at the moment of take-off and landing
Electronic Compass Tilt Compensation: Assists the magnetometer in tilt compensation to enhance heading accuracy
V. Mingjiada Electronics – Professional Supplier of the BMA456
Shenzhen Mingjiada Electronics Co., Ltd. has been deeply involved in the electronic components sector for nearly thirty years and is a leading one-stop supply platform for sensor chips in China. Mingjiada has long supplied and recycled the BMA456 Bosch three-axis accelerometer; the product features are as follows:
Brand-new and genuine: All BMA456 chips are genuine Bosch products, with quality guaranteed
Stock Availability: Ample stock is always on hand to respond swiftly to customer requirements
Price Advantage: Competitive pricing; terms subject to negotiation for actual orders
Long-Term Supply: Mingjiada provides a long-term, stable supply of the BMA456 and the full range of Bosch MEMS sensors
Recycling Service: We also offer a recycling service for genuine, original BMA456 units
The sensor ICs supplied by Mingjiada Electronics cover a full range of categories, including temperature sensors, motion sensors, MEMS inertial sensors, magnetic sensors and Hall-effect sensors. In terms of accelerometers, Mingjiada has long supplied mainstream models such as the Bosch BMA400 (ultra-low power consumption) and BMA456 (commonly used in wearables).
Contact Us
If you require BMA456 Bosch drone sensors from stock, or have BMA456 chips in stock that you wish to sell, please contact Shenzhen Mingjiada Electronics for the latest quotation. Specialising in the supply and recycling of sensor chips for various drones, AI robots, communications and automotive electronics.
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