The INA2191A5IYBJR from Texas Instruments is a state-of-the-art current shunt and power monitor with an I2C-compatible interface. This device is designed for precise current measurement from both high-side and low-side sensing perspectives, offering a flexible and robust solution for power management in a wide range of applications. Its bidirectional current sensing capabilities make it an ideal choice for monitoring battery consumption and charging cycles, as well as managing power supplies in consumer and industrial electronics.
Featuring a wide voltage range of 0 to 26V on the bus and shunt voltage inputs, the INA2191A5IYBJR can handle significant voltage levels while maintaining excellent accuracy. The integrated 12-bit analog-to-digital converter (ADC) provides a resolution that can detect the smallest changes in current, ensuring precise monitoring and feedback for power control systems.
With its high-side current sensing, the INA2191A5IYBJR ensures that the ground path remains uninterrupted, thereby reducing the risk of ground potential differences affecting the accuracy of the current measurements. The device is capable of measuring currents with a full-scale range of up to ±3.2A and has a configurable shunt voltage range of ±40mV to ±320mV, allowing for a broad spectrum of current sensing applications.
The INA2191A5IYBJR's I2C interface supports standard, fast, and high-speed modes, making it versatile for communication with a variety of microcontrollers and processors. Its programmable calibration value enables power measurement across diverse load conditions, and the device can report current, voltage, and power to the host controller for real-time monitoring or logging.
Housed in a compact, surface-mount package, the INA2191A5IYBJR is designed for space-constrained applications. Its operational temperature range of -40°C to +125°C ensures reliable performance in challenging environments. This Texas Instruments component is an excellent choice for designers looking to enhance the power management and diagnostic capabilities of their next-generation electronic systems.