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INA3221AIRGVT
Basic Information Overview
- Category: Integrated Circuit (IC)
- Use: Current Shunt Monitor
- Characteristics: High accuracy, low power consumption
- Package: VQFN-16
- Essence: Measures current flowing through a shunt resistor
- Packaging/Quantity: Tape and Reel, 2500 units per reel
Specifications
- Supply Voltage Range: 2.7V to 5.5V
- Operating Temperature Range: -40°C to +125°C
- Number of Channels: 3
- Current Measurement Resolution: 0.8µA
- Gain Error: ±0.75%
- Common Mode Voltage Range: -0.2V to +26V
- Interface: I2C
Detailed Pin Configuration
- VDD: Power supply voltage input
- GND: Ground reference
- SDA: I2C data line
- SCL: I2C clock line
- ADDR: Address selection pin
- ALERT: Interrupt output
- AIN0: Channel 1 current measurement input
- AIN1: Channel 2 current measurement input
- AIN2: Channel 3 current measurement input
- REF: Reference voltage output
- VIN+: Positive shunt voltage input
- VIN-: Negative shunt voltage input
- VBUS: Bus voltage input
- VSHCT: Shunt voltage input for channel 3
- VSHB: Shunt voltage input for channel 2
- VSHA: Shunt voltage input for channel 1
Functional Features
- Measures current with high accuracy using an internal 12-bit ADC
- Supports three independent current measurements
- Provides programmable conversion times for each channel
- Offers programmable alert thresholds for overcurrent detection
- Allows for easy configuration and control through the I2C interface
Advantages and Disadvantages
Advantages
- High accuracy current measurement
- Low power consumption
- Small package size
- Flexible configuration options
Disadvantages
- Limited number of channels (3)
- Requires external shunt resistors for current sensing
Working Principles
The INA3221AIRGVT is a current shunt monitor IC that measures the voltage drop across an external shunt resistor to determine the current flowing through it. It utilizes an internal 12-bit ADC to convert the voltage measurements into digital values. The I2C interface allows for easy communication with microcontrollers or other devices.
Detailed Application Field Plans
- Battery management systems
- Power supply monitoring
- Motor control
- Solar energy systems
- Industrial automation
Detailed and Complete Alternative Models
- INA219: Similar functionality, but with a single channel
- INA226: Offers additional features like power and voltage measurement
- INA240: Higher voltage range and higher accuracy than INA3221AIRGVT
Note: The above content is approximately 250 words. Additional information can be added to meet the required word count of 1100 words.
Liste 10 perguntas e respostas comuns relacionadas à aplicação de INA3221AIRGVT em soluções técnicas
Sure! Here are 10 common questions and answers related to the application of INA3221AIRGVT in technical solutions:
Q1: What is INA3221AIRGVT? A1: INA3221AIRGVT is a high-side current and voltage monitor IC (integrated circuit) that can measure up to three channels of current and voltage.
Q2: What are the key features of INA3221AIRGVT? A2: Some key features of INA3221AIRGVT include its ability to measure current and voltage, its high accuracy, low offset voltage, and its I2C interface for easy integration with microcontrollers.
Q3: How many channels can INA3221AIRGVT monitor? A3: INA3221AIRGVT can monitor up to three channels of current and voltage.
Q4: What is the maximum current that INA3221AIRGVT can measure? A4: INA3221AIRGVT can measure currents up to ±3.2A.
Q5: Can INA3221AIRGVT measure both positive and negative currents? A5: Yes, INA3221AIRGVT can measure both positive and negative currents.
Q6: What is the voltage range that INA3221AIRGVT can measure? A6: INA3221AIRGVT can measure voltages from 0V to 26V.
Q7: How accurate is INA3221AIRGVT in measuring current and voltage? A7: INA3221AIRGVT has a high accuracy with typical errors of ±0.8% for current measurement and ±0.8% for voltage measurement.
Q8: Can INA3221AIRGVT be used in battery monitoring applications? A8: Yes, INA3221AIRGVT can be used in battery monitoring applications to measure the current and voltage of the battery.
Q9: Does INA3221AIRGVT have any built-in protection features? A9: Yes, INA3221AIRGVT has built-in overcurrent and overvoltage protection features to safeguard the monitored circuit.
Q10: How can INA3221AIRGVT be interfaced with a microcontroller? A10: INA3221AIRGVT uses an I2C interface, which allows it to be easily connected and controlled by a microcontroller.
Please note that these questions and answers are general and may vary depending on specific application requirements.