MAX471ESA+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuits (ICs)

Use: Current Sense Amplifier

Characteristics: - High accuracy current sensing - Wide input voltage range - Low quiescent current - Small package size

Package: 8-SOIC (Small Outline Integrated Circuit)

Essence: The MAX471ESA+ is a current sense amplifier that allows accurate measurement of current flowing through a load.

Packaging/Quantity: The MAX471ESA+ is available in tape and reel packaging, with a quantity of 250 units per reel.

Specifications

• Supply Voltage Range: 2.7V to 36V
• Input Common Mode Voltage Range: -0.3V to +36V
• Quiescent Current: 60µA (typical)
• Gain Bandwidth Product: 500kHz (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX471ESA+ has the following pin configuration:

1. V+
2. IN-
3. IN+
4. GND
5. OUT
6. REF
7. SET
8. NC

Functional Features

• Accurate current sensing: The MAX471ESA+ provides precise measurement of current flowing through a load.
• Wide input voltage range: It can handle a wide range of input voltages, making it suitable for various applications.
• Low quiescent current: The device consumes minimal current when not actively sensing, reducing power consumption.
• Small package size: The 8-SOIC package allows for compact designs and space-saving integration.

Advantages and Disadvantages

Advantages: - High accuracy current sensing - Wide input voltage range - Low quiescent current consumption - Compact package size

Disadvantages: - Limited maximum supply voltage range - May require external components for specific applications

Working Principles

The MAX471ESA+ operates based on the principle of measuring the voltage drop across a sense resistor connected in series with the load. The voltage drop is amplified and converted into a proportional output voltage, allowing accurate current measurement.

Detailed Application Field Plans

The MAX471ESA+ finds applications in various fields, including but not limited to: 1. Power management systems 2. Battery charging and monitoring 3. Motor control systems 4. Overcurrent protection circuits 5. Current monitoring in industrial equipment

Detailed Alternative Models

1. INA219 - Current Shunt Monitor
2. ACS712 - Hall Effect-Based Linear Current Sensor
3. LT6105 - High-Side Current Sense Amplifier
4. AD8210 - High Common-Mode Voltage Current Shunt Monitor

These alternative models offer similar functionality and can be considered as alternatives to the MAX471ESA+ depending on specific requirements.

In conclusion, the MAX471ESA+ is a current sense amplifier that provides accurate current measurement in a wide range of applications. Its high accuracy, wide input voltage range, low quiescent current, and compact package make it a versatile choice for various designs. However, designers should consider the limited maximum supply voltage range and potential need for additional external components.