KTC CONS LABS INA219 Bi-directional DC Current Power Supply Sensor Breakout Module DIY 3V-5V IIC I2C Power Monitoring Sensor Module Power Supply Electronic Hobby Kit

INA219 I2C interface zero drift bidirectional current / power monitoring sensor module The INA219 module is a zero-drift, bidirectional current/power monitoring integrated circuit (IC) with an I2C interface that further expands TI's energy-efficient electronics portfolio. With the industry's highest accuracy and the smallest size, the INA219 not only monitors the voltage drop across the shunt resistor, senses the shunt supply voltage, but also calculates the power supply. Available in a SOT23 package, the device provides a small, low-cost solution for server, notebook, power, battery management, and digital current sensing in automotive and telecom equipment. The INA219 achieves a maximum error accuracy of 100 in the temperature range of -40C to +85C with a maximum offset of 100 uV. The high precision of this product combined with 12-bit resolution helps customers minimize the voltage drop across the shunt resistors, minimizing power loss and power consumption and saving board space. The device senses bus voltages from 0 V to +26 V. Other important features of the INA219 include: The programmable calibration register reads the current directly in amps and reads the power in watts. Up to 128 samples can be averaged for filtering in noisy environments. The I2C interface has a timeout setting that not only avoids bus lock, but also provides a high-speed mode that meets communication requirements of up to 3.4 MHz. All features of the INA219 support software programmable. Single-supply operation with operating voltages from +3.0 to +5.5V