Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| 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) |
Tổng quan
Description
The INA219AIDR is a precision power monitor integrated circuit (IC) designed by Texas Instruments. This chip is used for monitoring both voltage and current in high-side shunt and bus configurations, making it suitable for various power management applications. It operates over a wide range of voltages and provides digital output data via an I²C interface, allowing for easy integration with microcontrollers or other digital systems.
Key features of the INA219AIDR include high accuracy with a maximum error of 1% over the entire operating temperature range, a wide input voltage range from 0V to 26V, and programmable gain for optimizing measurements. The IC supports current sensing capabilities up to ±3.2A with an appropriate shunt resistor. Additionally, the INA219AIDR is capable of measuring power, current, and bus voltage, providing critical data for energy management and efficiency optimization in systems.
Its small size and versatile functionality make it ideal for use in battery-operated devices, power supplies, and industrial systems where monitoring power consumption is crucial.
Key features of the INA219AIDR include high accuracy with a maximum error of 1% over the entire operating temperature range, a wide input voltage range from 0V to 26V, and programmable gain for optimizing measurements. The IC supports current sensing capabilities up to ±3.2A with an appropriate shunt resistor. Additionally, the INA219AIDR is capable of measuring power, current, and bus voltage, providing critical data for energy management and efficiency optimization in systems.
Its small size and versatile functionality make it ideal for use in battery-operated devices, power supplies, and industrial systems where monitoring power consumption is crucial.
Equivalent
Equivalent products for the INA219AIDR chip, which is a current and power monitor, include:
1. MAX471 - A high-side current-sense amplifier.
2. LTC4150 - A Coulomb counter for battery monitoring.
3. INA226 - A similar precision digital current and power monitor with additional features.
4. INA3221 - A triple-channel shunt and bus voltage monitor.
5. ZXCT1009 - A low-cost, high-side current monitor.
These alternatives may vary in features and specifications, so it's important to compare them based on your specific application requirements.
1. MAX471 - A high-side current-sense amplifier.
2. LTC4150 - A Coulomb counter for battery monitoring.
3. INA226 - A similar precision digital current and power monitor with additional features.
4. INA3221 - A triple-channel shunt and bus voltage monitor.
5. ZXCT1009 - A low-cost, high-side current monitor.
These alternatives may vary in features and specifications, so it's important to compare them based on your specific application requirements.
Features
The INA219AIDR is a high-side current and power monitor with an I²C interface, offering precise measurements in various applications. Key features include:
1. Wide Supply Voltage Range: Operates from 3V to 5.5V, making it compatible with most systems.
2. High Accuracy: Provides a 12-bit resolution for current and voltage measurements with high precision.
3. Bidirectional Current Measurement: Capable of measuring current in both directions, suitable for applications involving charging and discharging.
4. Wide Common-Mode Range: Operates over a common-mode voltage range from 0V to 26V, accommodating a variety of applications.
5. Programmable Gain: Offers configurable gain for bus voltage and shunt voltage, allowing for customization according to specific needs.
6. Low Offset Voltage: Features a low offset voltage, which enhances measurement accuracy, especially at low current levels.
7. I²C Compatible Interface: Supports standard, fast, and high-speed I²C protocols, facilitating easy integration with microcontrollers.
8. Small Package: Available in a compact MSOP-10 package, saving board space in compact designs.
These features make the INA219AIDR suitable for use in battery management systems, power supplies, and various other electronic applications requiring accurate current and power monitoring.
1. Wide Supply Voltage Range: Operates from 3V to 5.5V, making it compatible with most systems.
2. High Accuracy: Provides a 12-bit resolution for current and voltage measurements with high precision.
3. Bidirectional Current Measurement: Capable of measuring current in both directions, suitable for applications involving charging and discharging.
4. Wide Common-Mode Range: Operates over a common-mode voltage range from 0V to 26V, accommodating a variety of applications.
5. Programmable Gain: Offers configurable gain for bus voltage and shunt voltage, allowing for customization according to specific needs.
6. Low Offset Voltage: Features a low offset voltage, which enhances measurement accuracy, especially at low current levels.
7. I²C Compatible Interface: Supports standard, fast, and high-speed I²C protocols, facilitating easy integration with microcontrollers.
8. Small Package: Available in a compact MSOP-10 package, saving board space in compact designs.
These features make the INA219AIDR suitable for use in battery management systems, power supplies, and various other electronic applications requiring accurate current and power monitoring.
Pinout
The INA219AIDR is a current shunt and power monitor integrated circuit from Texas Instruments. It typically comes in an 8-pin package. The pin functions are as follows:
1. V+: Supply Voltage (3.0V to 5.5V).
2. GND: Ground reference for the device.
3. SDA: Serial Data Line for I²C interface.
4. SCL: Serial Clock Line for I²C interface.
5. VIN+: Positive Differential Input Voltage Pin, connected to the load.
6. VIN-: Negative Differential Input Voltage Pin, connected to the shunt resistor.
7. A0: Address Pin 0, used to set I²C address.
8. A1: Address Pin 1, used to set I²C address.
The INA219AIDR allows for high-side current measurements with a high level of precision. It communicates via an I²C interface, making it easy to integrate with microcontrollers for monitoring current, voltage, and power.
1. V+: Supply Voltage (3.0V to 5.5V).
2. GND: Ground reference for the device.
3. SDA: Serial Data Line for I²C interface.
4. SCL: Serial Clock Line for I²C interface.
5. VIN+: Positive Differential Input Voltage Pin, connected to the load.
6. VIN-: Negative Differential Input Voltage Pin, connected to the shunt resistor.
7. A0: Address Pin 0, used to set I²C address.
8. A1: Address Pin 1, used to set I²C address.
The INA219AIDR allows for high-side current measurements with a high level of precision. It communicates via an I²C interface, making it easy to integrate with microcontrollers for monitoring current, voltage, and power.
Manufacturer
The INA219AIDR is manufactured by Texas Instruments (TI). Texas Instruments is a global technology company that designs and manufactures semiconductors and various integrated circuits. It is known primarily for its development of analog chips and embedded processors, which are utilized in a wide range of electronic devices across various industries, including consumer electronics, automotive, industrial, and telecommunications. TI is headquartered in Dallas, Texas, and has a strong presence in the semiconductor industry as one of the leading manufacturers. The company focuses on innovation and provides support for engineers and designers to create more efficient and advanced electronic systems.
Application
The INA219AIDR is a current and power monitor used in various applications due to its precision and versatility. Key application areas include battery management systems, where it monitors charge and discharge cycles; solar power systems for tracking power output and efficiency; server and networking equipment for power consumption tracking; automotive systems to monitor battery health and load currents; and industrial automation for equipment maintenance and energy efficiency. Its high-side sensing capability, wide input range, and digital interface make it suitable for embedded systems and IoT devices for real-time power monitoring and management.
Package
The INA219AIDR is packaged in a surface-mount, 8-pin SOIC (Small Outline Integrated Circuit) form. This package type is denoted by "DR" in the part number, indicating it is designed for compact, efficient mounting on printed circuit boards (PCBs).
