INA214AIDCKR

Product Overview

Category: Integrated Circuit (IC)

Use: The INA214AIDCKR is a precision current shunt monitor IC that accurately measures the voltage drop across a shunt resistor to determine the current flowing through it. It is commonly used in various applications where precise current monitoring is required, such as power management systems, battery chargers, motor control, and industrial automation.

Characteristics: - High accuracy: The INA214AIDCKR offers high precision current sensing with a maximum offset voltage of 50µV and a gain error of only 0.1%. - Wide input voltage range: It can operate with input voltages ranging from 2.7V to 26V, making it suitable for a wide range of applications. - Low power consumption: With a quiescent current of only 60µA, the INA214AIDCKR minimizes power dissipation and extends battery life in portable devices. - Small package size: This IC comes in a compact SC70 package, which saves board space and allows for easy integration into space-constrained designs. - Enhanced EMI performance: The device features electromagnetic interference (EMI) filters on the inputs, ensuring reliable operation even in noisy environments.

Package and Quantity: The INA214AIDCKR is available in a small SC70 package. It is typically sold in reels of 3000 units.

Specifications

• Supply Voltage Range: 2.7V to 26V
• Quiescent Current: 60µA
• Offset Voltage: 50µV (maximum)
• Gain Error: 0.1% (maximum)
• Common-Mode Voltage Range: -0.3V to +26V
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The INA214AIDCKR has a total of 6 pins, as shown below:

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| | --| V+ OUT |-- --| VIN GND |-- --| REF NC |-- |___________| ```

1. V+: Positive supply voltage pin.
2. OUT: Output voltage pin that provides the amplified current sense signal.
3. VIN: Current sense input pin connected to the shunt resistor.
4. GND: Ground reference pin.
5. REF: Reference voltage input pin for adjusting the output voltage level (optional).
6. NC: No connection pin.

Functional Features

• High-side or low-side current sensing: The INA214AIDCKR can be configured for either high-side or low-side current sensing, depending on the application requirements.
• Programmable gain: It offers programmable gain options to accommodate different shunt resistor values and current ranges.
• Built-in temperature sensor: The IC includes an integrated temperature sensor, allowing accurate compensation for changes in ambient temperature.
• Fault detection and reporting: The device features built-in fault detection circuitry, providing alerts for overcurrent, undervoltage, and overtemperature conditions.

Advantages and Disadvantages

Advantages: - High accuracy and precision - Wide input voltage range - Low power consumption - Compact package size - Enhanced EMI performance

Disadvantages: - Limited number of pins for additional functionality - Requires external shunt resistor for current sensing

Working Principles

The INA214AIDCKR operates based on the principle of measuring the voltage drop across a shunt resistor. It amplifies this voltage drop and provides an output voltage proportional to the current flowing through the shunt resistor. By accurately measuring this voltage, the IC enables precise current monitoring in various applications.

Application Field Plans

The INA214AIDCKR finds applications in a wide range of fields, including:

1. Power management systems: It is used for current monitoring and control in power supplies, DC-DC converters, and voltage regulators.
2. Battery chargers: The IC enables accurate charging current measurement in battery charging circuits, ensuring optimal charging performance and safety.
3. Motor control: It is employed in motor control systems to monitor the current drawn by motors, enabling efficient control and protection against overload conditions.
4. Industrial automation: The INA214AIDCKR is utilized in industrial automation equipment for precise current monitoring in control loops, process control, and robotics.

Alternative Models

Other alternative models that offer similar functionality to the INA214AIDCKR include: - INA210AIDCKR - INA213AIDCKR - INA216AIDCKR

These alternatives can be considered based on specific application requirements and design constraints.

In conclusion, the INA214AIDCKR is a highly accurate and versatile current shunt monitor IC suitable for various applications requiring precise current sensing. Its compact size, low power consumption, and wide input voltage range make it