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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.
Building Automation Application Diagram
  • More

    Power Monitoring

    ACS37800 – Power Monitoring IC with I/V ZCD
     Close
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    LED Driving

    A6217 – 3A Buck Reg LED Driver
    A80604 – Multi-Channel Boost LED Driver
    A80605 – Multi-Channel Boost LED Driver
    ALT80600 – Multi-Channel Boost LED Driver
    ALT80802 – 2A Buck-Buck/Boost LED Driver

    Close
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    Current & Fault Monitoring

    ACS37002 – Robust Current & Fault Sensor
    ACS37800 – Power & Fault Monitoring IC     Close
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    AC/DC Current and Power Monitoring

    ACS37800 – Power & Fault Monitoring IC
     Close
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    DC Charge Monitoring

    ACS70331 – 0A-5A GMR Current Sensor
     ACS730 – 1MHz Hall Current & Fault Sensor, SOIC8
    ACS71240     – 0A-50A Current & Fault Sensor
    ACS711     – 0A-31A Hall Current & Fault Sensor
    Close
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    Compressor & Inverter Phase Current

    ACS71240 – 0A-50A Phase Current Sensor
    ACS772     – 0A-400A Phase Current Sensor
    ACS711     – Hall Current & Fault Sensor
    ACS37800     – AC & DC Highly Isolated Power Monitoring IC Close
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    Fan & Blower BLDC Motor Driver

    A89301 – Code-Free FOC Sensorless BLDC
    A89306 – Code-Free 3Phase BLDC FOC
    A5932 – 3-Phase Sinusoidal Fan Controller     Close
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    Linear Position Sensing

    A1318-9 – 3.3V Linear Position Sensor Family
    A1324-5-6 – 5V Linear Position Sensor Family
    A1330 – Programmable Angle Position Sensor     Close
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    Angle Position Sensing

    A1330 – CVH Angle Position Sensor
    ALS31300 – 3D Linear Position Sensor     Close
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    Motor Phase Current Monitoring

    ACS71240 – Current Sensor, 100V Isolation
    ACS70331 – 0A-5A GMR Current Sensor
     
    Close
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    BLDC Motor Controller

    A4955 – Full-Bridge PWM Gate Driver
    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

    Close
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    Encoder Position Sensing

    APS12626 – Dual Channel Hall-effect Latch
    ALS31300 – 3D Linear Position Sensor
    A1262 – 24V Dual Channel Hall-effect Latch     Close
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    Battery & Current Monitoring

    ACS71240 – Miniature Current & Fault Sensor
    ACS70331     – High Accuracy GMR Current Sensor
    ACS724-5     – 0A-65A AC & DC Current Sensor
    ACS733     – 1MHz Hall Current & Fault Sensor, SOIC16 Close

Featured Products

Power Monitoring IC Allegro-16-Pin-SOICW-MA-Package

ACS37800

Programmable AC and DC Power Monitoring IC

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Allegro EX 12 Package

ACS71240

Automotive-Grade, Galvanically Isolated Current Sensor IC

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Allegro LJ SOIC with exposed pad 8-pin package

A4950

Full-Bridge DMOS PWM Motor Controller

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Documentation & Resources

3D Hall-Effect Sensor Magnetic Tamper Detection Smart Home Systems

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 ...

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Enhancing Smart Home Security with 3D Magnetic Sensors

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 ...

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Convenient and Isolated Power Measurements via SPI or I2C using ACS71020 or ACS37800 Power Monitoring ICs

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.

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Allegro Motor Driving with Angular Sensor IC

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 ...

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Brochure: Integrated Power Monitoring with the ACS37800

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 ...

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Allegro Current Sensor ICs: Unique Packaging Options for Every Thermal Budget

Application Note

Allegro Current Sensor ICs: Unique Packaging Options for Every Thermal Budget

AN296190 - The data contained within this application note allows the user to effectively choose an Allegro current sensor package based on their ...

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Position and Level Sensing Using Hall-Effect Sensing Technology

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 ...

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Secrets of Measuring Currents Above 50 Amps

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 ...

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Vertical Hall Technology Enables Effective Tamper Detection

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 ...

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Improved Performance and Features of Allegro’s Next Generation, High Power Density CB Package Current Sensors

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 ...

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