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AMC1305L25QDWRQ1
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AMC1305L25QDWRQ1

Product Overview

Category

The AMC1305L25QDWRQ1 belongs to the category of integrated isolated current sensors.

Use

This product is primarily used for accurate current sensing in various applications, including motor control, power inverters, and industrial automation systems.

Characteristics

  • Integrated isolation technology ensures safe and reliable operation.
  • High accuracy and linearity over a wide temperature range.
  • Low offset voltage and low drift for precise current measurements.
  • Wide input voltage range allows compatibility with different power supply levels.
  • Compact package size for easy integration into space-constrained designs.

Package

The AMC1305L25QDWRQ1 is available in a small form factor, surface-mount package.

Essence

The essence of the AMC1305L25QDWRQ1 lies in its ability to accurately sense current while providing electrical isolation between the measured current and the measurement circuitry.

Packaging/Quantity

This product is typically supplied in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

  • Input Current Range: ±25 A
  • Supply Voltage Range: 3 V to 5.5 V
  • Isolation Voltage: 4000 Vrms
  • Operating Temperature Range: -40°C to +125°C
  • Output Type: Analog
  • Response Time: < 10 μs
  • Non-Linearity Error: < 0.1%
  • Offset Voltage: < 50 μV
  • Gain Error: < 0.2%

Detailed Pin Configuration

The AMC1305L25QDWRQ1 has the following pin configuration:

  1. VDDA: Analog Power Supply
  2. VSSA: Analog Ground
  3. VDDI: Digital Power Supply
  4. VSSI: Digital Ground
  5. VOS: Output Offset Voltage
  6. OUT: Analog Output
  7. NC: No Connection
  8. VIN+: Positive Input Terminal
  9. VIN-: Negative Input Terminal

Functional Features

  • High accuracy current sensing with minimal offset and gain errors.
  • Integrated isolation barrier for enhanced safety and noise immunity.
  • Wide input voltage range allows compatibility with various power supply levels.
  • Fast response time enables real-time current monitoring and control.
  • Low power consumption for energy-efficient applications.

Advantages and Disadvantages

Advantages

  • Accurate and reliable current sensing.
  • Electrical isolation ensures safety and reduces noise interference.
  • Compact package size facilitates easy integration into designs.
  • Wide operating temperature range for versatile application scenarios.
  • Low offset voltage and drift enable precise measurements.

Disadvantages

  • Limited input current range of ±25 A.
  • Analog output requires additional signal conditioning for digital processing.

Working Principles

The AMC1305L25QDWRQ1 utilizes a Hall-effect sensor to measure the magnetic field generated by the current flowing through the primary conductor. This magnetic field is then converted into an analog voltage proportional to the input current. The integrated isolation barrier ensures that the measured current is electrically isolated from the measurement circuitry, providing safety and preventing ground loops.

Detailed Application Field Plans

The AMC1305L25QDWRQ1 finds extensive application in various fields, including:

  1. Motor Control: Accurate current sensing for precise control of motor speed and torque.
  2. Power Inverters: Monitoring and protection of power inverters in renewable energy systems.
  3. Industrial Automation: Current monitoring in industrial automation systems for fault detection and control.
  4. Battery Management Systems: Current measurement in battery management systems for accurate state-of-charge estimation.
  5. Electric Vehicle Charging: Current sensing in electric vehicle charging stations for efficient power delivery.

Detailed and Complete Alternative Models

  1. AMC1305L25QDWR: Similar to the AMC1305L25QDWRQ1, but without automotive qualification.
  2. AMC1305L10QDWRQ1: Lower input current range of ±10 A, suitable for applications with lower current levels.
  3. AMC1305L50QDWRQ1: Higher input current range of ±50 A, ideal for applications requiring higher current measurements.

(Note: This is not an exhaustive list of alternative models. Please refer to the manufacturer's documentation for a complete list.)

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de AMC1305L25QDWRQ1 en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of AMC1305L25QDWRQ1 in technical solutions:

1. What is the AMC1305L25QDWRQ1? The AMC1305L25QDWRQ1 is a high-precision, delta-sigma modulator with an integrated isolated DC/DC converter. It is designed for current sensing in motor control and power conversion applications.

2. What is the purpose of using the AMC1305L25QDWRQ1 in technical solutions? The AMC1305L25QDWRQ1 provides accurate current measurements in high-voltage systems while providing electrical isolation between the measured current and the measurement circuitry.

3. How does the AMC1305L25QDWRQ1 achieve electrical isolation? The AMC1305L25QDWRQ1 uses integrated capacitive isolation technology to provide galvanic isolation between the primary and secondary sides of the device.

4. What is the voltage rating of the AMC1305L25QDWRQ1? The AMC1305L25QDWRQ1 has a maximum working voltage of 700 V.

5. Can the AMC1305L25QDWRQ1 be used in high-temperature environments? Yes, the AMC1305L25QDWRQ1 is designed to operate in temperatures ranging from -40°C to +125°C, making it suitable for various industrial applications.

6. How accurate is the current measurement provided by the AMC1305L25QDWRQ1? The AMC1305L25QDWRQ1 offers excellent accuracy with a typical nonlinearity error of ±0.15% and a gain error of ±0.5%.

7. Does the AMC1305L25QDWRQ1 require an external power supply? No, the AMC1305L25QDWRQ1 has an integrated isolated DC/DC converter that provides the necessary power for its operation.

8. Can the AMC1305L25QDWRQ1 be used in both AC and DC current sensing applications? Yes, the AMC1305L25QDWRQ1 is suitable for both AC and DC current sensing applications.

9. What is the output interface of the AMC1305L25QDWRQ1? The AMC1305L25QDWRQ1 provides a digital output interface using a serial peripheral interface (SPI) for easy integration with microcontrollers or other digital systems.

10. Are there any evaluation boards or reference designs available for the AMC1305L25QDWRQ1? Yes, Texas Instruments provides evaluation modules and reference designs for the AMC1305L25QDWRQ1, which can help users quickly prototype and evaluate their technical solutions.

Please note that these answers are general and may vary depending on specific application requirements. It is always recommended to refer to the device datasheet and application notes for detailed information.