Heating, Ventilation & Air Conditioning

Heating, Ventilation and Air Conditioners have steadily become more common in the household as they become smaller, yet more powerful, quieter, smarter, and more energy-efficient.  With Allegro's lines in current sensors, regulators and QuietMotion Motor Driver devices, a design solution is easily at hand.
HVAC Diagram
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    DC-DC Regulators

    A8586 – 3.5A Buck Regulator
    A8587 – 2A Non-Sync Buck Regulator

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    Lighting

    A6217 – 3A Buck Reg LED Driver
    ALT80802 – 2A Buck-Buck/Boost LED Driver

     
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    AC/DC Power Management and Monitoring

    ACS730 – High Bandwidth Current Sensor
    ACS724 – 0A-50A Current Sensor
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    Heat Exchanger Fan Control

    A5931 / A5932 – Three-Phase Sensorless Sinusoidal Fan Controller
    AMT49400 – Integrated Sensorless FOC BLDC Driver
    A89301 – Code-Free FOC Sensorless BLDC Motor Controller
    A89306 – Code-Free FOC Sensorless BLDC Motor Driver
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    Compressor Motor Control

    APS13290 – High ESD Hall-effect Latch
    A1250 – High Sensitivity Commutation Sensor
    ACS71240 – Isolated Current and Fault Sensor
    ACS37002 – Robust Non-Ratiometric Current Sensor

     
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    Gas and Water Valve Control

    APS13295 – High ESD Hall-effect Switch
     
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    Isolation and Over-Current Protection

    ACS71240 – 0A-50A Current + Fault Sensor
    ACS37002 – 0-80A Current + Fault Sensor

     

     
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    DC-DC Regulators

    ARG81800 – 1A Sync Buck Regulator
    A8586 –  3.5A Buck Regulator
    A8587 – 2A Non-Sync Buck Regulator

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    Lighting

    A6217 – 3A Buck Reg LED Driver
    ALT80802 – 2A Buck-Buck/Boost LED Driver

     
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    AC/DC Power Management and Monitoring

    ACS71240 – 0A-50A Current + Fault Sensor
    ACS730 – High Bandwidth Current Sensor
    ACS37002 – 0A-80A Current + Fault Sensor
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    AC and DC Fan Control

    APS13290 – High ESD Hall-effect Latch
    A1250 – High Sensitivity Commutation Sensor
    ACS71240 – Phase Current Sensor IC
    AMT49400 – Integrated Sensorless FOC BLDC Driver
    AMT49406– Code-Free FOC Sensorless BLDC Motor Controller
    A89301 – Code-Free FOC Sensorless BLDC Motor Controller
    A89306 – Code-Free FOC Sensorless BLDC Motor Driver

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    Drain Pump

    APS13290 – High ESD Hall-effect Latch
    A1250 – High Sensitivity Commutation Sensor
    ACS71240 – Phase Current Sensor IC
    ACS37002 – Robust Non-Ratiometric Current Sensor
    A5932 – Three-Phase Sensorless Sinusoidal Fan Controller
    A5947 – Three-Phase Sensorless Fan Driver
    AMT49406 – Code-Free FOC Sensorless BLDC Motor Controller
    A89301 – Code-Free FOC Sensorless BLDC Motor Controller
    A89306 – Code-Free FOC Sensorless BLDC Motor Driver

     
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    Motorized Dampers and Louver Control

    ALS31000 – 5V Linear Position Sensor
    A31004 – 3.3V Linear Position Sensor
    A1330 – Programmable Angle Position Sensor
    A3909 – Dual Full-Bridge Motor Driver
    AMT49701 – Quad Full-Bridge PWM Motor Driver

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    Rotary Control Knobs

    A1391 – Linear Hall-effect Sensor with Sleep Mode
    A1330 – Programmable Angle Position Sensor
    ALS31300 – 3D Linear Position Sensor

     

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    Proximity Sensors

    A3211 – Low Duty Cycle Hall-effect Switch
    APS13295 – High ESD Hall-effect Switch
    A1266 – 3D Hall-effect Switch

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