INA219AID

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INA219AID

+BOM

IC CURRENT MONITOR 1% 8SOIC

  • ManufacturerTexas Instruments

  • Mfr. Part #INA219AID

  • Package SOIC (D)-8

  • In Stock5663

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Specifications

Attribute Value
Package Tube
Series Zero-Drift
ProductStatus Active
Function Current Monitor
SensingMethod High-Side
Accuracy ±1%
Voltage-Input 0V ~ 26V
Current-Output 10mA
OperatingTemperature -40°C ~ 125°C
MountingType Surface Mount
Package/Case 8-SOIC (0.154, 3.90mm Width)

Overview

Description

The INA219AID is a precision power monitor from Texas Instruments used for measuring the current, voltage, and power of a system. This device is commonly employed in applications that require accurate power monitoring and energy optimization, such as battery management systems, power supplies, and industrial controls.
Key features of the INA219AID include a high-side current sensing capability that allows it to monitor the load without disrupting the ground path. It provides a digital output through an I2C interface, which makes it easy to integrate with microcontrollers and other digital systems for data logging and real-time monitoring.
The device can measure voltage drops across a shunt resistor and convert them to current readings with high precision, typically with a resolution of up to 0.1 mA. Additionally, it can handle a wide range of common-mode voltages, enhancing its versatility across different applications.
The INA219AID's compact size and low power consumption make it ideal for use in portable electronics, while its accuracy and robustness make it suitable for more demanding industrial environments.

Equivalent

Equivalent products to the INA219AID chip include:
1. MAX4173 - A high-side current-sense amplifier from Maxim Integrated.
2. INA226 - A digital current and power monitor with an I2C interface by Texas Instruments.
3. INA220 - Another I2C output current/power monitor by TI.
4. LTC4151 - A high-side power monitor with I2C by Analog Devices.
5. ADS1115 - A precision ADC from TI, suitable for similar sensing applications.
These alternatives offer similar current sensing and monitoring functions with various additional features.

Features

The INA219AID is a current shunt and power monitor with I²C interface, designed for precise measurements in power-sensitive applications. Key features include:
1. High Accuracy: Provides 1% maximum error over the entire temperature range and a resolution of 0.1 mA, enabling precise current and power monitoring.
2. Wide Range Measurements: Supports bus voltage measurements from 0V to 26V, allowing for versatile applications.
3. Bidirectional Sensing: Capable of measuring current flow in both directions, suitable for charging and discharging systems.
4. Programmable Gain and Conversion Times: Offers adjustable gain settings and conversion times to tailor performance for specific applications.
5. Low Power Consumption: Operates at a low current consumption of 1 mA, making it suitable for battery-powered devices.
6. Small Package Size: Comes in a compact SOT-23 package, ideal for space-constrained applications.
7. I²C Interface: Compatible with a standard I²C communication protocol for easy integration with microcontrollers.
These features make the INA219AID suitable for a variety of applications, including battery management systems, power supply monitoring, and energy metering.

Pinout

The INA219AID is a current and power monitor manufactured by Texas Instruments. It comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. Here is a brief overview of its pin functions:
1. VCC (Pin 1): Power supply input, typically 3.0 to 5.5 V.
2. GND (Pin 2): Ground connection.
3. SDA (Pin 3): Serial Data Line for I2C communication.
4. SCL (Pin 4): Serial Clock Line for I2C communication.
5. ADDR (Pin 5): Address pin to set different I2C addresses.
6. AIN+ (Pin 6): Input for high-side voltage measurement (connected to the load).
7. AIN- (Pin 7): Input for high-side voltage measurement (connected to the bus).
8. VREF (Pin 8): Optional reference voltage input (commonly connected to ground).
The INA219AID facilitates precise current, voltage, and power monitoring in various applications, offering an I2C interface for easy integration with microcontrollers.

Manufacturer

The INA219AID is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and manufactures a wide range of electronic components and integrated circuits. The company is known for its innovation in the development of analog and embedded processing products, catering to various industries including consumer electronics, automotive, industrial, and communications equipment. With a strong focus on research and development, Texas Instruments aims to deliver high-performance and energy-efficient solutions to meet the evolving needs of its customers worldwide.

Application

The INA219AID is a current and power monitoring sensor commonly used in various applications. It is ideal for power management in server farms, battery-operated devices, and telecommunications equipment. The sensor is used in solar power management systems to track energy usage and efficiency. Additionally, it finds applications in automotive systems for monitoring battery health and power distribution. In consumer electronics, it's utilized for optimizing power consumption and prolonging battery life. Its high precision makes it suitable for industrial automation systems where accurate current and voltage measurements are crucial. The INA219AID's versatility and low power consumption make it valuable in any application requiring efficient power monitoring and management.

Package

The INA219AID is typically available in a Surface-Mount Device (SMD) package known as the SOIC-8 (Small Outline Integrated Circuit with 8 pins). This package type is compact, suitable for automated assembly processes, and ideal for applications requiring precise current and power monitoring.

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