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MAX4373HESA+T

MAX4373HESA+T

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Current Sense Amplifier
  • Characteristics: High precision, low offset voltage, wide input voltage range
  • Package: Surface Mount, 8-pin SOIC (Small Outline Integrated Circuit)
  • Essence: The MAX4373HESA+T is a current sense amplifier designed for accurate measurement of small currents in various applications.
  • Packaging/Quantity: Available in tape and reel packaging, with 2500 units per reel.

Specifications

  • Supply Voltage Range: 2.7V to 28V
  • Input Common Mode Voltage Range: -0.1V to +28V
  • Output Voltage Swing: 0V to VCC - 1.2V
  • Gain Accuracy: ±0.5%
  • Offset Voltage: ±100µV
  • Bandwidth: 500kHz
  • Operating Temperature Range: -40°C to +125°C

Pin Configuration

The MAX4373HESA+T has the following pin configuration:

```


| | --| IN+ OUT |-- Pin 1: IN+ (Non-Inverting Input) --| IN- GND |-- Pin 2: IN- (Inverting Input) / GND (Ground) --| REF VCC |-- Pin 3: REF (Reference Voltage Input) / VCC (Positive Supply Voltage) --| SET NC |-- Pin 4: SET (Gain Setting) / NC (No Connection) --| NC NC |-- Pin 5: NC (No Connection) --| NC NC |-- Pin 6: NC (No Connection) --| NC NC |-- Pin 7: NC (No Connection) --| NC OUT |-- Pin 8: OUT (Output) |___________| ```

Functional Features

  • High accuracy current sensing with low offset voltage
  • Wide input voltage range allows measurement of small currents in various applications
  • Gain setting pin for flexibility in selecting the desired gain
  • Low power consumption for energy-efficient operation
  • Fast response time and high bandwidth for real-time current monitoring

Advantages and Disadvantages

Advantages: - High precision current sensing - Wide input voltage range - Flexible gain setting - Low power consumption - Fast response time

Disadvantages: - Limited number of pins for additional functionality - Requires external reference voltage for accurate measurements

Working Principles

The MAX4373HESA+T is a current sense amplifier that utilizes a differential amplifier configuration to accurately measure small currents. It amplifies the voltage drop across a shunt resistor, allowing precise current measurements. The gain can be set using the SET pin, providing flexibility in selecting the desired amplification factor.

Detailed Application Field Plans

The MAX4373HESA+T finds applications in various fields where accurate current sensing is required. Some potential application areas include:

  1. Power Management Systems: Monitoring and controlling current flow in power supplies, battery chargers, and DC-DC converters.
  2. Motor Control: Precise current measurement in motor control circuits for efficient operation and protection against overload conditions.
  3. Automotive Electronics: Current sensing in automotive systems such as electric vehicles, hybrid vehicles, and engine control units.
  4. Industrial Automation: Current monitoring in industrial equipment, robotics, and process control systems.
  5. Renewable Energy Systems: Current measurement in solar inverters, wind turbines, and energy storage systems.

Detailed and Complete Alternative Models

  1. INA219: Current Shunt Monitor with I2C Interface
  2. LT6106: Precision High Side Current Sense Amplifier
  3. AD8210: High Common-Mode Voltage, Programmable Gain Current Shunt Monitor

These alternative models offer similar functionality and can be considered as alternatives to the MAX4373HESA+T based on specific application requirements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací MAX4373HESA+T v technických řešeních

Sure! Here are 10 common questions and answers related to the application of MAX4373HESA+T in technical solutions:

  1. Q: What is the MAX4373HESA+T? A: The MAX4373HESA+T is a high-side current-sense amplifier designed for precision measurement of bidirectional currents.

  2. Q: What is the operating voltage range of MAX4373HESA+T? A: The operating voltage range of MAX4373HESA+T is typically between 2.7V and 28V.

  3. Q: What is the maximum input offset voltage of MAX4373HESA+T? A: The maximum input offset voltage of MAX4373HESA+T is typically ±500µV.

  4. Q: Can MAX4373HESA+T measure both positive and negative currents? A: Yes, MAX4373HESA+T can accurately measure both positive and negative currents.

  5. Q: What is the gain accuracy of MAX4373HESA+T? A: The gain accuracy of MAX4373HESA+T is typically ±0.5%.

  6. Q: Does MAX4373HESA+T require an external shunt resistor? A: Yes, MAX4373HESA+T requires an external shunt resistor for current sensing.

  7. Q: What is the bandwidth of MAX4373HESA+T? A: The bandwidth of MAX4373HESA+T is typically 500kHz.

  8. Q: Can MAX4373HESA+T operate in harsh environments? A: Yes, MAX4373HESA+T is designed to operate in industrial temperature ranges (-40°C to +85°C) and is suitable for harsh environments.

  9. Q: What is the output voltage range of MAX4373HESA+T? A: The output voltage range of MAX4373HESA+T is typically 0V to VCC - 1.2V.

  10. Q: Is MAX4373HESA+T available in a surface-mount package? A: Yes, MAX4373HESA+T is available in a small 8-pin SOIC surface-mount package.

Please note that these answers are based on general information and may vary depending on the specific datasheet and application requirements.