Building Automation and Smart Home
Rolling shades, garage doors, automated lighting—we help you make industrial buildings safer, more convenient, and more efficient.
Allegro offers speed sensors, brushless DC and brush DC motor drivers, latches and switches, and integrated currents sensors that provide the robustness and durability you need for harsh industrial environments. Plus, our current sensors shine in your high voltage applications.
Allegro offers speed sensors, brushless DC and brush DC motor drivers, latches and switches, and integrated currents sensors that provide the robustness and durability you need for harsh industrial environments. Plus, our current sensors shine in your high voltage applications.
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BLDC Motor Controller
A4955 – Full-Bridge PWM Gate Driver
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A4950 – Full/Dual Bridge DMOS PWM Driver
A4954 – Full/Dual Bridge DMOS PWM Driver
A89301 – Code-Free FOC Sensorless BLDC
A89306 – Code-Free 3Phase BLDC FOC
AMT49701 – Dual DMOS Full-Bridge PWM Motor Driver
AMT49702 – Dual DMOS Full-Bridge PWM Motor Driver
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Documentation & Resources
Application Note
3D Hall-Effect Sensor Magnetic Tamper Detection Smart Home Systems
AN296223 - The experiment results highlight several advantages of 3D Hall-effect sensors such as their ability to detect strong magnetic fields that are randomly applied to the outside of a smart home device.
Technical Article
Enhancing Smart Home Security with 3D Magnetic Sensors
P0173 - As consumers find new ways to outfit their living spaces with simple-to-use smart home and Internet of Things (IoT) products, they may be unaware of certain vulnerabilities and security features.
Application Note
Secrets of Measuring Currents Above 50 Amps
It can be challenging to sense currents exceeding 50 A because the task often involves thermal management, must take place in a limited PCB area, and in some cases, requires a voltage isolation device. Two widely used methods for sensing high currents are a sense-resistor/op-amp approach, and Hall-based current sensing.
Application Note
Position and Level Sensing Using Hall-Effect Sensing Technology
This paper introduces Hall-effect technology, then explores how it has been applied, in particular, differentiating between the primary types of Hall sensor ICs and the highly differentiated range of sensing behaviors they can support.
Application Note
Improved Performance and Features of Allegro’s Next Generation, High Power Density CB Package Current Sensors
This application note will describe the use of the new high current ACS772 Hall-effect current sensor integrated circuit (IC) from Allegro MicroSystems and will give an overview
of its features and improvements from previous Allegro high-current sensors.
Application Note
Vertical Hall Technology Enables Effective Tamper Detection
A recent breakthrough in Hall-effect sensing has enabled the creation of omnidirectional magnetic sensor ICs that match all of the requirements for tamper detection.
Application Note
Convenient and Isolated Power Measurements via SPI or I2C using ACS71020 or ACS37800 Power Monitoring ICs
AN296180 - This application note describes the I2C and SPI interfaces on the ACS71020/ACS37800 Power Monitoring ICs from Allegro MicroSystems.
Application Note
Allegro Motor Driving with Angular Sensor IC
AN296171 - This application note will describe how to use Allegro’s motor driver and angle sensor solutions to enable precise driving and reliable monitoring of brushless DC (BLDC) motors.
Brochure
Brochure: Integrated Power Monitoring with the ACS37800
Allegro’s ACS37800 offers its customers the capability to easily monitor and optimize the energy efficiency of power supplies, lighting, and motor control sub-systems in connected building automation solutions while simplifying the system design.