INA219 Bidirectional DC Current Monitoring Sensor with I2C Interface, 3-5.5V Zero Point Drift Performance Monitor Breakout Module for Arduino (Pack of 2)
INA219 Bidirectional DC Current Monitoring Sensor with I2C Interface, 3-5.5V Zero Point Drift Performance Monitor Breakout Module for Arduino (Pack of 2)
Product description: The INA219 module is a high-precision sensor for bi- directional current and voltage monitoring with I2C interface. It is based on the INA219B chip and is ideal for high-side current measurement. The module can not only measure the voltage drop, but also directly calculate the power, making it a perfect, cost-effective solution for developers. Technical parameters: Chip: INA219B. Operating voltage: +3.0 V to +5.5 V. Voltage measurement: 0V to +26V. Current measurement: up to ±3.2 A (with 0.1 Ohm resistance). Resolution: ± 0.8 mA. Temperature range: -40°C to +85°C. Accuracy: max. 1% error. ADC Resolution: 12-bit Interface: I2C (up to 3.4 MHz) I2C addresses: 0x40, 0x41, 0x44, 0x45 (selectable). Dimensions: 25.5 x 22.3 mm. Product features: Bi-directional measurement: detects current flow in both directions (charge/discharge), perfect for batteries. High precision: 12-bit ADC and low offset for accurate current, voltage and power measurements. Direct output: a programmable register directly delivers current (A) and power (W), which simplifies the software. Noise filtering: averaging up to 128 samples ensures stable and reliable data. Software control: All functions are fully programmable via software for maximum flexibility. Areas of use: Ideal for: servers, notebooks, power supplies, battery management, solar applications, automotive electronics and DIY projects. Easy integration into systems. Instructions: Supply the module with 3 V to 5.5 V DC. Connect SCL and SDA to your microcontroller's I2C bus. Connect the power source to VIN+ and the load to VIN-. Package includes: 2 x INA219 Bidirectional Current/Power Sensor Module
Product Features
- High precision and efficiency: The module with the INA219B chip offers a maximum error accuracy of 1% in the temperature range from -40C to +85C and a maximum offset of 100uV. The 12-bit resolution helps to minimize voltage drop at the shunt resistor and thus power loss, saving valuable board space and improving the efficiency of your circuit.
- Bi-directional measurement: This sensor is designed for bi-directional current monitoring. With the 0.1 Ohm 1% 2W resistor, it measures currents up to 3.2A with a resolution of 0.8mA and detects bus voltages from 0V to +26V. It is ideal for high-side current measurement, battery management and monitoring of charge states without affecting mass reference.
- Flexible I2C interface: Communication is carried out via an I2C interface with timeout setting, which prevents the bus from blocking and supports a high-speed mode up to 3.4 MHz. The I2C addresses (0x40, 0x41, 0x44, 0x45) are selectable via solder jumpers, which allows the easy use of multiple sensors in one project.
- Programmable functions: All features are software-programmable. A calibration register allows direct reading of current in amps and power in watts, which simplifies data processing. In addition, up to 128 samples can be averaged to filter the signal in noisy environments and increase data reliability.
- Compact and versatile: With an operating voltage of +3.0 V to +5.5 V and the small SOT23 housing, this sensor is a cost-effective solution for servers, notebooks, power supplies and automotive electronics.