inventory:5,618
Infineon Technologies
Module
A1121 (2)
Allegro MicroSystemsThe A1121 is available from Allegro MicroSystems at Xecor. Designed for precision magnetic sensing, the A1121 offers chopper-stabilized performance, low power consumption, and automotive-grade reliability. Available in the SOT-23W package, it is ideal for automotive and industrial applications, such as position sensing, speed detection, and proximity switching. Whether used in electric vehicles, robotics, or smart appliances, this series ensures high accuracy, durability, and efficiency for demanding environments. Xecor is an authorized distributor for Allegro MicroSystems. Please view our extensive selection of the A1121 series below.
| Part Number | Description | Package | Inventory | Add To Bom |
|---|---|---|---|---|
| A1121LUA-T | Chopper-Stabilized Hall-Effect Switch for Precision Applications | SIP-3 | 5,150 | |
| A1121LLHLT-T | A1121LLHLT-T Magnetic Sensor | SOT23-3 | 6,049 |
Key Featrues
Chopper-Stabilized Precision - This feature ensures high accuracy and stability in detecting magnetic fields, reducing offset errors and improving reliability in applications like automotive systems, where precision is critical.
Unipolar Switch Operation - The sensor is designed to detect a single magnetic pole (South Pole), simplifying its use in applications like position sensing and proximity detection, while reducing complexity in system design.
Wide Operating Voltage Range (3V to 24V) - This allows the sensor to be used in a variety of systems, from low-power electronics to automotive applications, enhancing its versatility and compatibility with different power supplies.
Open-Drain Output - The open-drain output provides flexibility in interfacing with different logic levels and external components, making it suitable for diverse circuit designs and improving integration ease.
AEC-Q100 Automotive Qualification - This certification ensures the sensor meets stringent automotive reliability standards, making it ideal for use in harsh environments like vehicle systems, where durability and performance are essential.
Unipolar Switch Operation - The sensor is designed to detect a single magnetic pole (South Pole), simplifying its use in applications like position sensing and proximity detection, while reducing complexity in system design.
Wide Operating Voltage Range (3V to 24V) - This allows the sensor to be used in a variety of systems, from low-power electronics to automotive applications, enhancing its versatility and compatibility with different power supplies.
Open-Drain Output - The open-drain output provides flexibility in interfacing with different logic levels and external components, making it suitable for diverse circuit designs and improving integration ease.
AEC-Q100 Automotive Qualification - This certification ensures the sensor meets stringent automotive reliability standards, making it ideal for use in harsh environments like vehicle systems, where durability and performance are essential.
Applications
Automotive Position Sensing: The A1121 Hall-effect sensor is ideal for detecting the position of rotating components, such as gear teeth, camshafts, or crankshafts, in automotive systems. Its unipolar switch functionality and AEC-Q100 qualification ensure reliable operation in harsh automotive environments, making it suitable for applications like anti-lock braking systems (ABS) and transmission control.
Proximity Detection in Consumer Electronics: This sensor can be used in consumer devices for proximity detection, such as detecting the opening or closing of laptop lids, smartphone flip covers, or smart home devices. Its low operating current and compact SOT-23W package make it ideal for battery-powered and space-constrained applications.
Brushless DC Motor Control: The A1121 is well-suited for commutation control in brushless DC motors. Its ability to detect magnetic fields with high precision and its open-drain output enable efficient and reliable motor control in applications like drones, electric vehicles, and industrial automation.
Industrial Safety Systems: The sensor can be integrated into safety systems to detect the presence or absence of magnetic fields, such as in door or gate position monitoring. Its wide operating voltage range (3V to 24V) and robust design make it suitable for industrial environments where reliability and durability are critical.
Proximity Detection in Consumer Electronics: This sensor can be used in consumer devices for proximity detection, such as detecting the opening or closing of laptop lids, smartphone flip covers, or smart home devices. Its low operating current and compact SOT-23W package make it ideal for battery-powered and space-constrained applications.
Brushless DC Motor Control: The A1121 is well-suited for commutation control in brushless DC motors. Its ability to detect magnetic fields with high precision and its open-drain output enable efficient and reliable motor control in applications like drones, electric vehicles, and industrial automation.
Industrial Safety Systems: The sensor can be integrated into safety systems to detect the presence or absence of magnetic fields, such as in door or gate position monitoring. Its wide operating voltage range (3V to 24V) and robust design make it suitable for industrial environments where reliability and durability are critical.