Main Function: CJMCU-219 module is a zero-drift, bidirectional current/power supply monitoring IC. It is powered by a single power supply, with an operating voltage between 3.0V and 5.5V. The bus voltage range that can be sensed is 0V to 26V. It can also monitor the voltage drop across the shunt resistor, sense the shunt supply voltage, and calculate the power supply
High Accuracy: INA219 achieves 1% error accuracy over the temperature range of -40°C to +85°C with an offset of 100 uV, and can average up to 128 samples. Combined with the advantage of 12-bit resolution, it can help you minimize the voltage drop on the shunt resistor, thereby effectively reducing power loss and power consumption
Communication Interface: With I2C interface, it has a timeout setting, which not only avoids bus lockup, but also provides a high-speed mode to meet communication requirements up to 3.4MHz
Easy to Use: All features of INA219 are software programmable, and programmable calibration registers can directly read current in amperes and power in watts
Wide Application: CJMCU-219 module uses a SOT23 package to provide a small, low-cost solution for digital current sensing in servers, notebooks, power supplies, battery management, and automotive and telecommunications equipment
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