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INA381A3IDSGR

Name: INA381A3IDSGR
Rating: 4.7 (12 reviews)

IC CURRENT SENSE 1% 8WSON

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規格

Series	Zero-Drift
Part Status	Active
Function	Current Sense
Sensing Method	High/Low-Side
Accuracy	±1%
Voltage - Input	0V ~ 26V
Operating Temperature	-40°C ~ 125°C (TA)
Mounting Type	Surface Mount
Package / Case	8-WFDFN Exposed Pad
Supplier Device Package	8-WSON (2x2)
Base Product Number	INA381

概述

Description

The INA381A3IDSGR is a high-precision, low-side current shunt monitor from Texas Instruments. It is designed for measuring small currents with high accuracy and is suitable for a variety of applications, including battery management, power monitoring, and industrial equipment.
Key features of the INA381A3IDSGR include an input common-mode range that extends from -0.3V to 26V, high precision with a gain error of typically ±0.5%, and a wide supply voltage range from 2.7V to 5.5V. It operates with a typical current consumption of just 300 µA, making it energy-efficient.
The device includes an integrated comparator, which allows for overcurrent detection, and it features a programmable gain, enabling users to set the appropriate sensitivity for their specific application. The INA381A3IDSGR is available in a small, compact package, facilitating easy integration into space-constrained designs. Overall, the INA381A3IDSGR is an effective solution for accurate current sensing in various electronic systems.

Features

The INA381A3IDSGR is a high-precision, low-power current sense amplifier designed for various applications, including battery monitoring and power management. Key features include:
1. Wide Supply Voltage Range: Operates from 2.7V to 5.5V, making it suitable for various power supply systems.
2. High Common-Mode Voltage Range: Accepts common-mode voltages from -0.1V to 26V, enabling use in high-side or low-side current sensing.
3. Gain Options: Available in fixed gains of 20V/V, 50V/V, or 100V/V, allowing flexibility for different sensing requirements.
4. Low Offset Voltage: Offers high accuracy with low input offset voltage, reducing measurement errors.
5. Low Quiescent Current: Consumes minimal power, ideal for battery-operated devices.
6. Integrated Protection: Features thermal shutdown and overvoltage protection, enhancing device reliability.
This amplifier is suitable for applications in industrial control, automotive systems, and portable devices, providing precise current measurement with minimal power consumption.

Package

The INA381A3IDSGR is packaged in a 3x3 mm, 8-pin VQFN (Very Thin Quad Flat No-lead) format.

Pinout

The INA381A3IDSGR is a current sense amplifier from Texas Instruments. It has a total of 8 pins. Here’s a brief overview of its pin functions:
1. Pin 1 (V+): Positive power supply input.
2. Pin 2 (IN+): Non-inverting input for current sensing.
3. Pin 3 (IN-): Inverting input for current sensing.
4. Pin 4 (OUT): Output voltage of the amplified signal.
5. Pin 5 (GND): Ground reference.
6. Pin 6 (VS): Secondary supply voltage input (for lower power operation).
7. Pin 7 (NC): No connection; not used.
8. Pin 8 (NC): No connection; not used.
The INA381 is designed for differential current measurements, featuring high common-mode voltage range and adjustable gain settings, making it suitable for battery management and motor control applications.

Manufacturer

The manufacturer of the INA381A3IDSGR is Texas Instruments (TI). Texas Instruments is a global technology company known for designing and manufacturing a wide range of semiconductor and integrated circuit solutions. Founded in 1930 and headquartered in Dallas, Texas, TI is a leading provider of innovative analog and embedded processing products. The company primarily serves various sectors, including automotive, industrial, communications, and consumer electronics, focusing on delivering high-performance, efficient solutions for a diverse range of applications. TI is recognized for its commitment to research and development, driving advancements in technology and fostering a collaborative environment for engineers and developers.

Application

The INA381A3IDSGR is a precision current shunt monitor designed for applications such as power management, battery monitoring, and energy metering. It is commonly used in industrial automation, electric vehicles, and renewable energy systems for accurate current sensing. Additionally, it can be applied in telecommunications and consumer electronics to ensure efficient power usage and improve overall system performance.

Equivalent

The INA381A3IDSGR is a current shunt monitor. Equivalent products include the INA190 series from Texas Instruments, the MAX4080 from Maxim Integrated, and the LTC6106 from Analog Devices. These alternatives offer similar functionality for current sensing applications, though specifications such as gain, input range, and supply voltage may vary. Always check datasheets for precise compatibility.