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MAX4081FASA+T
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MAX4081FASA+T

Introduction

The MAX4081FASA+T is a high-side current-sense amplifier designed for use in various applications. This entry provides an overview of the product, including its category, use, characteristics, package, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Current-sense amplifier
  • Characteristics: High-side sensing, wide input voltage range, low offset voltage, small package size
  • Package: 8-pin SOIC package
  • Essence: Precision current measurement
  • Packaging/Quantity: Tape and reel packaging, available in quantities of 2500 units per reel

Specifications

  • Input Voltage Range: 4.5V to 76V
  • Supply Voltage Range: 4.5V to 76V
  • Operating Temperature Range: -40°C to +125°C
  • Gain Options: 20V/V, 50V/V, 100V/V
  • Bandwidth: 500kHz
  • Quiescent Current: 300µA

Pin Configuration

The MAX4081FASA+T features the following pin configuration: 1. V+ 2. IN+ 3. IN- 4. VCC 5. OUT 6. SET 7. GND 8. REF

Functional Features

  • High-Side Sensing: Enables accurate current measurement in high-side applications
  • Wide Input Voltage Range: Allows the device to be used in a variety of voltage levels
  • Low Offset Voltage: Ensures precision in current measurement
  • Small Package Size: Provides flexibility in board layout and space-constrained designs

Advantages and Disadvantages

Advantages

  • Accurate current measurement in high-side applications
  • Wide input voltage range for versatile use
  • Low offset voltage for precise measurements
  • Small package size for flexible design integration

Disadvantages

  • Limited gain options compared to some alternatives
  • Higher quiescent current compared to certain competing models

Working Principles

The MAX4081FASA+T operates by amplifying the voltage drop across a shunt resistor placed in series with the load. This amplified voltage is then converted into a proportional output current, providing an accurate representation of the load current.

Application Field Plans

The MAX4081FASA+T is suitable for a wide range of applications, including but not limited to: - Battery management systems - Power management in automotive and industrial applications - Motor control and protection circuits - Overcurrent protection in power supplies

Alternative Models

For users seeking alternative options, the following models can be considered: - MAX4372FESA+: Offers a wider range of gain options - INA199A1QPWRQ1: Provides lower quiescent current for power-sensitive applications - LTC6101HVHS8#PBF: Suitable for high-voltage applications with extended temperature range

In conclusion, the MAX4081FASA+T is a versatile high-side current-sense amplifier with a wide input voltage range, making it suitable for various applications that require precise current measurement. Its compact package and functional features make it a valuable component in modern electronic designs.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de MAX4081FASA+T en soluciones técnicas

  1. What is the MAX4081FASA+T?

    • The MAX4081FASA+T is a high-side current-sense amplifier with an input common-mode voltage range that extends from 4V to 76V, making it suitable for a wide range of applications.

  2. What is the typical application of MAX4081FASA+T?

    • The MAX4081FASA+T is commonly used in battery management systems, power supplies, motor control, and other applications where accurate current sensing is required.

  3. What is the supply voltage range for MAX4081FASA+T?

    • The supply voltage range for MAX4081FASA+T is typically between 4V and 76V.

  4. What is the output voltage range of MAX4081FASA+T?

    • The output voltage range of MAX4081FASA+T is typically between 0V and VCC - 0.2V.

  5. What is the gain accuracy of MAX4081FASA+T?

    • The gain accuracy of MAX4081FASA+T is typically within ±1%.

  6. What is the bandwidth of MAX4081FASA+T?

    • The bandwidth of MAX4081FASA+T is typically 500kHz.

  7. What is the quiescent current of MAX4081FASA+T?

    • The quiescent current of MAX4081FASA+T is typically 120µA.

  8. What is the temperature range for MAX4081FASA+T?

    • The temperature range for MAX4081FASA+T is typically -40°C to +125°C.

  9. What are the key features of MAX4081FASA+T?

    • Some key features of MAX4081FASA+T include high-side current sensing, wide input common-mode voltage range, low quiescent current, and high accuracy.

  10. What are some common challenges when using MAX4081FASA+T?

    • Common challenges when using MAX4081FASA+T may include proper layout and thermal considerations, understanding the input common-mode voltage requirements, and ensuring proper filtering and noise immunity in the application circuit.