Overview
The INA3221AQRGVRQ1 is a high-precision, triple-channel current and power monitor developed by Texas Instruments. Designed for automotive and industrial applications, this component is housed in a compact VQFN-16 package and is compliant with AEC-Q100 standards. It features bidirectional current sensing, an alert function, and low-side capability, making it suitable for monitoring power consumption in systems with multiple voltage rails. Its zero-drift architecture ensures high accuracy, and its I2C interface simplifies integration into various designs.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage (Max) | 5.5 | V | |
| Supply Voltage (Min) | 2.7 | V | |
| Operating Current | 350 | µA | |
| Accuracy | 0.25 | % | |
| Operating Temperature (Min) | -40 | °C | |
| Operating Temperature (Max) | 125 | °C | |
| Package | VQFN-16 | ||
| Input Voltage Range | 0 to 26 | V | |
| Channels | 3 | Bidirectional | |
| Interface | I2C |
Key Features
- Triple-channel current and power monitoring.
- Bidirectional current sensing capability.
- Alert function for threshold detection.
- Low-side capable for flexible system integration.
- Zero-drift architecture for high accuracy.
- I2C interface for easy communication.
- Compliant with AEC-Q100 automotive standards.
Applications
The INA3221AQRGVRQ1 is widely used in automotive systems, industrial automation, and power management applications. It is particularly effective in monitoring battery health, power consumption in multi-rail systems, and energy efficiency in portable devices. Its high accuracy and robust design make it ideal for safety-critical applications in vehicles and industrial machinery.
Q & A
1. What is the operating voltage range of the INA3221AQRGVRQ1?
The operating voltage range is 2.7V to 5.5V.
2. How many channels does this device support?
It supports three bidirectional channels.
3. Is the INA3221AQRGVRQ1 suitable for automotive applications?
Yes, it is compliant with AEC-Q100 automotive standards.
4. What is the accuracy of the current measurement?
The accuracy is 0.25%.
5. Does it support low-side current sensing?
Yes, it is low-side capable.
6. What is the maximum input voltage it can handle?
The maximum input voltage is 26V.
7. What is the operating temperature range?
It operates from -40°C to +125°C.
8. What communication interface does it use?
It uses an I2C interface.
9. Does it have an alert function?
Yes, it features an alert function for threshold detection.
10. What package does the INA3221AQRGVRQ1 come in?
It is available in a VQFN-16 package.
