Allegro MicroSystems, LLC
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ACS781LLRTR-050B-T
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ACS781LLRTR-050B-T

Product Overview

The ACS781LLRTR-050B-T belongs to the category of current sensor integrated circuits. It is designed for use in various electronic systems to measure and monitor electrical currents. The characteristics of this product include high accuracy, low power consumption, and a compact package. The essence of the ACS781LLRTR-050B-T lies in its ability to provide precise current measurements in a wide range of applications. It is typically available in surface-mount packages and is often sold in reels containing a specific quantity of units.

Specifications

  • Model: ACS781LLRTR-050B-T
  • Category: Current Sensor IC
  • Operating Temperature Range: -40°C to 125°C
  • Supply Voltage: 3V to 5.5V
  • Output Type: Analog Voltage
  • Sensitivity: 60mV/A
  • Package Type: SOIC-16

Detailed Pin Configuration

The ACS781LLRTR-050B-T features a 16-pin configuration with specific pins dedicated to power supply, ground, output voltage, and current sensing inputs. The pinout diagram provides a clear understanding of the connectivity and functionality of each pin.

Functional Features

  • High Accuracy Current Sensing
  • Low Power Consumption
  • Wide Operating Temperature Range
  • Overcurrent Detection
  • Reverse Polarity Protection

Advantages and Disadvantages

Advantages

  • Precise Current Measurement
  • Compact Package
  • Wide Operating Temperature Range
  • Low Power Consumption

Disadvantages

  • Limited Maximum Current Measurement Range
  • Requires External Signal Conditioning for Some Applications

Working Principles

The ACS781LLRTR-050B-T operates based on the principle of Hall-effect sensing, where the magnetic field generated by the current-carrying conductor is detected and converted into a proportional analog voltage output. This output is then utilized for accurate current measurement and monitoring.

Detailed Application Field Plans

The ACS781LLRTR-050B-T is suitable for a wide range of applications including: - Motor Control Systems - Power Management Systems - Battery Monitoring - Industrial Automation - Renewable Energy Systems

Detailed and Complete Alternative Models

  1. ACS723LLCTR-20A-T: Similar current sensor IC with lower sensitivity and different package type.
  2. ACS758LCB-100B-PFF-T: Higher current handling capacity with similar operating characteristics.

In conclusion, the ACS781LLRTR-050B-T is a versatile current sensor IC that offers high accuracy and reliability in measuring electrical currents across various electronic systems. Its compact design and functional features make it an ideal choice for applications requiring precise current monitoring.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de ACS781LLRTR-050B-T en soluciones técnicas

  1. What is the ACS781LLRTR-050B-T?

    • The ACS781LLRTR-050B-T is a fully integrated, Hall-effect-based linear current sensor IC with a 50A measurement range.

  2. How does the ACS781LLRTR-050B-T work?

    • The ACS781LLRTR-050B-T operates on the principle of Hall-effect sensing, where it detects the magnetic field generated by the current flowing through the conductor.

  3. What are the typical applications of the ACS781LLRTR-050B-T?

    • Typical applications include motor control, load detection and management, power supplies, and overcurrent fault protection in various industrial and automotive systems.

  4. What is the output signal of the ACS781LLRTR-050B-T?

    • The ACS781LLRTR-050B-T provides an analog voltage output proportional to the sensed current, making it compatible with most microcontrollers and ADCs.

  5. How accurate is the ACS781LLRTR-050B-T?

    • The ACS781LLRTR-050B-T offers high accuracy with low offset and gain errors, making it suitable for precision current measurement applications.

  6. What is the operating voltage range of the ACS781LLRTR-050B-T?

    • The ACS781LLRTR-050B-T operates from a single 3.0 V to 5.5 V supply, making it suitable for a wide range of system designs.

  7. Does the ACS781LLRTR-050B-T require external calibration?

    • No, the ACS781LLRTR-050B-T is factory-calibrated, eliminating the need for additional calibration in most applications.

  8. Can the ACS781LLRTR-050B-T measure both AC and DC currents?

    • Yes, the ACS781LLRTR-050B-T can accurately measure both AC and DC currents, providing flexibility in various system designs.

  9. What is the temperature range for operation of the ACS781LLRTR-050B-T?

    • The ACS781LLRTR-050B-T is designed to operate over a wide temperature range, typically from -40°C to 125°C, ensuring reliable performance in harsh environments.

  10. Is the ACS781LLRTR-050B-T lead (Pb) free and RoHS compliant?

    • Yes, the ACS781LLRTR-050B-T is lead (Pb) free and complies with the Restriction of Hazardous Substances (RoHS) directive, making it environmentally friendly and suitable for global use.