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INA219 Current/Power Monitor
INA219
Texas Instrumentsinterface io display
The INA219 is a digital current and power monitor that uses an I2C/SMBUS interface to measure both shunt voltage drop and bus supply voltage. It offers programmable calibration for direct current and power readouts, with options for conversion times and filtering.
In stock
Specifications
11- Operating Voltage
- 3 V
- Operating Voltage
- 5.5 V
- Bus Voltage Range
- 0 V
- Bus Voltage Range
- 26 V
- Interface
- I2C/SMBUS
- Supply Current
- 1 mA
- Temperature Range
- -40 °C
- Temperature Range
- 125 °C
- Accuracy
- 0.5 %
- Resolution
- 12 bit
- Package
- SOT23-8, SOIC-8
Pinout
8| Pin | Name | Functions | Notes |
|---|---|---|---|
| 1 | IN+ | ADC | Positive differential shunt voltage input. Connect to the positive side of the shunt resistor. |
| 2 | IN- | ADC | Negative differential shunt voltage input. Bus voltage is measured from this pin to ground. |
| 3 | GND | GND | Ground connection. |
| 4 | VS | POWER | Power supply input, 3 to 5.5 V. |
| 5 | SCL | I2C | Serial bus clock line. |
| 6 | SDA | I2C | Serial bus data line. |
| 7 | A0 | GPIO | Address pin for I2C communication. |
| 8 | A1 | GPIO | Address pin for I2C communication. |
Interactive pinout
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INA219
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