Overview
The INA219AIDCNRG4, produced by Texas Instruments, is a highly versatile and accurate current shunt and power monitor. This device is designed to monitor both the shunt voltage drop and the bus supply voltage, providing comprehensive data on current, voltage, and power consumption. It features an I2C- or SMBUS-compatible interface, making it easily integrable into various systems. The INA219AIDCNRG4 is available in a compact SOT23-8 package, suitable for a wide range of applications requiring precise power monitoring.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Bus Voltage Range | 0 to 26 | V |
| Shunt Voltage Range (PGA = /1) | ±40 | mV |
| Shunt Voltage Range (PGA = /2) | ±80 | mV |
| Shunt Voltage Range (PGA = /4) | ±160 | mV |
| Shunt Voltage Range (PGA = /8) | ±320 | mV |
| Supply Voltage | 3 to 5.5 | V |
| Supply Current | Maximum 1 | mA |
| Operating Temperature | -40 to 125 | °C |
| Accuracy (INA219B) | 0.5% (Maximum) Over Temperature | |
| Interface | I2C- or SMBUS-compatible | |
| Programmable Addresses | 16 |
Key Features
- High Accuracy: The INA219B version offers high accuracy with a maximum error of 0.5% over temperature.
- Programmable Conversion Times and Filtering: Allows for customizable measurement settings to suit various application needs.
- Programmable Calibration: Enables direct readouts of current in amperes and power in watts using internal multipliers.
- Multiple PGA Settings: Supports full-scale shunt voltage ranges of ±40 mV, ±80 mV, ±160 mV, and ±320 mV.
- Compact Packaging: Available in SOT23-8 and SOIC-8 packages.
- Compatibility with Hot Swap Controllers: Designed to work with hot swap controllers like the TI TPS2490.
Applications
- Power Supply Monitoring: Ideal for monitoring current and power in power supplies, especially in high-reliability systems.
- Automotive Systems: Suitable for automotive applications due to its high accuracy and robust operating temperature range.
- Industrial Automation: Used in industrial automation for precise power and current monitoring in various equipment.
- Consumer Electronics: Applied in consumer electronics for efficient power management and monitoring.
Q & A
- What is the primary function of the INA219AIDCNRG4?
The primary function of the INA219AIDCNRG4 is to monitor both the shunt voltage drop and the bus supply voltage, providing data on current, voltage, and power consumption. - What are the available PGA settings for the INA219AIDCNRG4?
The INA219AIDCNRG4 supports PGA settings that increase the full-scale shunt voltage range to ±40 mV, ±80 mV, ±160 mV, and ±320 mV. - What is the operating temperature range of the INA219AIDCNRG4?
The operating temperature range of the INA219AIDCNRG4 is from -40°C to 125°C. - What types of interfaces does the INA219AIDCNRG4 support?
The INA219AIDCNRG4 supports I2C- or SMBUS-compatible interfaces. - How many programmable addresses does the INA219AIDCNRG4 have?
The INA219AIDCNRG4 has 16 programmable addresses. - What is the maximum supply current of the INA219AIDCNRG4?
The maximum supply current of the INA219AIDCNRG4 is 1 mA. - Is the INA219AIDCNRG4 compatible with hot swap controllers?
Yes, the INA219AIDCNRG4 is designed to be compatible with hot swap controllers like the TI TPS2490. - What are the available package types for the INA219AIDCNRG4?
The INA219AIDCNRG4 is available in SOT23-8 and SOIC-8 packages. - What is the accuracy of the INA219B version over temperature?
The INA219B version has a maximum accuracy error of 0.5% over temperature. - Can the INA219AIDCNRG4 be used in automotive applications?
Yes, the INA219AIDCNRG4 is suitable for automotive applications due to its high accuracy and robust operating temperature range.
