Overview
The INA219BIDCNR is a high-accuracy, bidirectional current and power monitor produced by Texas Instruments. This device is designed to monitor both shunt voltage drop and bus supply voltage, providing detailed measurements of current, voltage, and power. It features an I2C- or SMBUS-compatible interface, making it versatile for various applications. The INA219BIDCNR operates within a wide voltage range of 0 to 26 V and is available in an 8-pin SOT-23 (DCN) package.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package Type | SOT-23 (DCN) | - |
| Pins | 8 | - |
| Operating Temperature Range | -40 to 125 | °C |
| Input Voltage Range | 0 to 26 | V |
| Supply Voltage Range | 3 to 5.5 | V |
| Supply Current | Maximum 1 | mA |
| Accuracy | ±0.5% | - |
| Resolution | 12-bit | - |
| Interface | I2C or SMBUS | - |
| Programmable Addresses | 16 | - |
Key Features
- Senses bus voltages from 0 to 26 V.
- Reports current, voltage, and power.
- Bidirectional current measurement.
- High accuracy: ±0.5% (maximum) over temperature (INA219B grade).
- Filtering options and calibration registers.
- Programmable conversion times and averaging.
- 16 programmable addresses for I2C or SMBUS interface.
Applications
- Power management and monitoring in various electronic systems.
- Current sensing in high-side configurations.
- Monitoring of power supplies and battery management systems.
- Industrial automation and control systems.
- Aerospace and automotive systems requiring precise power monitoring.
Q & A
- What is the operating temperature range of the INA219BIDCNR?
The INA219BIDCNR operates from -40°C to 125°C.
- What is the input voltage range that the INA219BIDCNR can sense?
The device can sense bus voltages from 0 to 26 V.
- What is the resolution of the INA219BIDCNR?
The resolution is 12-bit.
- What interface does the INA219BIDCNR use for communication?
The device uses an I2C or SMBUS-compatible interface.
- How many programmable addresses does the INA219BIDCNR have?
The device has 16 programmable addresses.
- What is the maximum supply current of the INA219BIDCNR?
The maximum supply current is 1 mA.
- What is the accuracy of the INA219BIDCNR?
The accuracy is ±0.5% (maximum) over temperature for the INA219B grade.
- Can the INA219BIDCNR measure current bidirectionally?
- What are some common applications of the INA219BIDCNR?
- What package type is the INA219BIDCNR available in?
The device is available in an 8-pin SOT-23 (DCN) package.
