Overview
The INA219EVM is an evaluation module (EVM) produced by Texas Instruments, designed to facilitate the evaluation and development of the INA219 current and power monitor IC. The INA219 is a high-side current shunt and power monitor with an I2C or SMBus interface, capable of measuring current, voltage, and power with high accuracy. The INA219EVM is targeted at engineers and developers working on power management systems, battery monitoring, and other applications requiring precise current and power measurements. Its unique selling points include its high accuracy, bidirectional current measurement capability, and ease of integration into existing systems.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Power Supply Voltage | 3 to 5.5 | V | |
| Maximum Power Supply Voltage | 5.5 | V | |
| Operating Supply Current | 1 | mA | |
| Accuracy | 0.5 | % | |
| Operating Temperature Range | -40 to +125 | °C | |
| Package | SOT-23-8 | ||
| Bandwidth | 11 | kHz | |
| Input Voltage Range | 0 to 26 | V | |
| Humidity Sensitivity | Yes |
Key Features
- Bidirectional current and power monitoring
- High accuracy with 0.5% error over the full temperature range
- Programmable gain and calibration
- I2C or SMBus interface with 16 programmable addresses
- Wide input voltage range of 0V to 26V
Applications
The INA219EVM is widely used in various applications including battery monitoring systems, power management in portable devices, industrial automation, and automotive electronics. Its ability to accurately measure current, voltage, and power makes it ideal for systems requiring precise power consumption monitoring and control. In battery monitoring, it helps in assessing the state of charge and health of the battery, while in industrial automation, it aids in energy management and efficiency optimization.
Q & A
1. What is the purpose of the INA219EVM?
The INA219EVM is designed to evaluate the performance of the INA219 current and power monitor IC, facilitating its integration into various applications.
2. What is the accuracy of the INA219EVM?
The INA219EVM offers an accuracy of 0.5% over the full temperature range.
3. Can the INA219EVM measure bidirectional current?
Yes, the INA219EVM supports bidirectional current measurement.
4. What is the input voltage range of the INA219EVM?
The input voltage range is from 0V to 26V.
5. What interface does the INA219EVM use?
The INA219EVM uses an I2C or SMBus interface.
6. How many programmable addresses does the INA219EVM support?
The INA219EVM supports 16 programmable addresses.
7. What is the operating temperature range of the INA219EVM?
The operating temperature range is from -40°C to +125°C.
8. Is the INA219EVM suitable for battery monitoring?
Yes, the INA219EVM is highly suitable for battery monitoring applications.
9. What is the maximum power supply voltage for the INA219EVM?
The maximum power supply voltage is 5.5V.
10. Does the INA219EVM require calibration?
Yes, the INA219EVM requires calibration to ensure accurate measurements.
