Allegro MicroSystems ACS781LLRTR-050U-T

Allegro MicroSystems ACS781LLRTR-050U-T Environmental and export classification status description

The Allegro MicroSystems ACS781LLRTR-050U-T is a linear Hall-effect-based current sensor designed for measuring high currents up to 50A. It provides a voltage output proportional to the measured current, allowing for easy interface with microcontrollers and other electronics. Functions: The ACS781LLRTR-050U-T sensor functions by utilizing the Hall-effect principle. It detects changes in magnetic fields caused by the flowing current through a conductor, converting it into a corresponding voltage output. This voltage can then be used for various current sensing applications. Applications: This sensor is commonly used in a variety of applications, including but not limited to: 1. Electric vehicle (EV) battery management systems 2. Industrial motor controls 3. Power supply monitoring 4. Solar inverters 5. Current sensing in automotive systems Alternative Parts: Some alternative parts to the ACS781LLRTR-050U-T sensor, which are also widely used in the current sensing field, include: 1. ACS712: A family of Hall-effect-based current sensors with different current range options available. 2. INA169: A current shunt monitor with integrated amplifier offering accurate current measurements. 3. ACS770: A series of current sensors with ratiometric output for non-invasive current sensing applications. Embedded Modules: The ACS781LLRTR-050U-T sensor can be embedded into various electronic systems using different microcontrollers or development boards, such as: 1. Arduino: Using the Arduino platform along with appropriate voltage conditioning circuits, the sensor can be easily integrated into projects. 2. Raspberry Pi: With suitable signals conditioning circuitry, the sensor can be connected to a Raspberry Pi board and utilized in different applications. 3. STM32 Development Boards: Allegro MicroSystems provides reference designs and application notes for integrating their sensors with STMicroelectronics' STM32 microcontroller development boards. Here are three related Q&A examples: 1. Q: How accurate is the Allegro ACS781LLRTR-050U-T sensor? A: The ACS781LLRTR-050U-T sensor has a typical accuracy of ±1.5% of the measured current, providing reliable results for most applications. 2. Q: Can I use the ACS781LLRTR-050U-T sensor for bidirectional current sensing? A: No, the ACS781LLRTR-050U-T sensor is unidirectional and measures current in one direction only. For bidirectional current sensing, alternative sensor options should be considered. 3. Q: What is the operating voltage range of the ACS781LLRTR-050U-T sensor? A: The ACS781LLRTR-050U-T sensor operates from a single supply voltage ranging from 3.0V to 5.5V, making it compatible with a wide range of electronic systems.