INA199A3RSWR

Product Overview

Category

The INA199A3RSWR belongs to the category of integrated circuits (ICs) specifically designed for current sensing applications.

Use

This product is primarily used for accurate measurement and monitoring of current in various electronic systems.

Characteristics

• High accuracy: The INA199A3RSWR offers precise current measurements with low offset and gain error.
• Wide input voltage range: It can handle a wide range of input voltages, making it suitable for diverse applications.
• Low power consumption: This IC consumes minimal power, ensuring energy efficiency in the system.
• Small package size: The INA199A3RSWR comes in a compact package, allowing for space-saving integration into electronic devices.
• Enhanced protection features: It provides built-in protection against overcurrent and overvoltage conditions, safeguarding the circuitry.

Package and Quantity

The INA199A3RSWR is available in a small outline transistor (SOT) package. Each package contains one IC.

Specifications

• Supply voltage: 2.7V to 5.5V
• Input common-mode voltage range: -0.1V to Vcc + 0.1V
• Operating temperature range: -40°C to +125°C
• Gain error: ±0.5%
• Offset voltage: ±100µV
• Bandwidth: 500kHz
• Quiescent current: 60µA

Pin Configuration

The INA199A3RSWR has eight pins arranged as follows:

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Pin Configuration: 1. V-: Negative supply voltage 2. IN+: Positive input terminal for current sensing 3. IN-: Negative input terminal for current sensing 4. REF: Reference voltage for offset adjustment 5. OUT: Output voltage 6. GND: Ground 7. SET: Gain setting pin 8. V+: Positive supply voltage

Functional Features

• High accuracy current sensing: The INA199A3RSWR provides precise current measurements with minimal error.
• Wide input voltage range: It can handle a wide range of input voltages, making it suitable for various applications.
• Low power consumption: This IC consumes minimal power, ensuring energy efficiency in the system.
• Built-in protection features: It offers overcurrent and overvoltage protection, enhancing the reliability of the circuitry.

Advantages and Disadvantages

Advantages

• Accurate current measurement
• Wide input voltage range
• Low power consumption
• Compact package size
• Built-in protection features

Disadvantages

• Limited bandwidth (500kHz)
• Requires external gain setting

Working Principles

The INA199A3RSWR operates based on the principle of Hall effect. When a current flows through the input terminals (IN+ and IN-), a magnetic field is generated perpendicular to the direction of the current. This magnetic field is sensed by an internal Hall sensor, which produces a proportional voltage output. The gain of the IC can be adjusted using the SET pin to match the desired sensitivity.

Application Field Plans

The INA199A3RSWR finds applications in various fields, including:

1. Power management systems: It enables accurate current monitoring in power supplies, battery management systems, and motor control circuits.
2. Industrial automation: The IC is used for precise current sensing in industrial machinery, robotics, and process control systems.
3. Automotive electronics: It plays a crucial role in current measurement for electric vehicles, hybrid vehicles, and automotive control modules.
4. Renewable energy systems: The INA199A3RSWR facilitates accurate current monitoring in solar inverters, wind turbines, and energy storage systems.

Alternative Models

1. INA199A2RSWR: Similar to the INA199A3RSWR but with a different pin configuration.
2. INA199B3RSWR: Offers enhanced features such as higher bandwidth and lower offset voltage.
3. INA199C3RSWR: Provides additional protection features like overtemperature shutdown and reverse polarity protection.

These alternative models offer similar functionality and can be considered based on specific application requirements.

In conclusion, the INA199A3RSWR is a highly accurate current sensing IC with a wide input voltage range and low power consumption. Its compact package and built-in protection features make it suitable for various applications in power management, industrial automation