Product Overview: INA250A3PWR by Texas Instruments

The INA250A3PWR is a precision power monitor from Texas Instruments, designed to simplify the process of measuring power in various applications. This integrated circuit combines a current-sensing amplifier and a precision shunt resistor in a single package, enabling it to provide a complete power monitoring solution with a minimal footprint.

Key Features

• Integrated Shunt Resistor: The device includes a precision 2 mΩ shunt resistor that offers high accuracy in current measurement, reducing the need for external components.
• Voltage Output: The INA250A3PWR provides an analog voltage output that is directly proportional to the current passing through the shunt resistor, allowing for easy interfacing with analog-to-digital converters (ADCs) or microcontrollers.
• High Accuracy: With an accuracy of ±0.1% for gain error and ±35 ppm/°C for gain drift, this power monitor ensures precise measurements across a wide temperature range.
• Wide Common-Mode Range: The device operates over a common-mode voltage range of 0 to 36 V, making it suitable for a variety of systems, including those with high common-mode voltages.
• Bandwidth: It features a bandwidth of up to 1 MHz, enabling the monitoring of fast transient events in power supplies and motor controls.

Applications

The INA250A3PWR is versatile and can be used in numerous applications that require accurate power monitoring. Some of these applications include:

• Test and measurement systems
• Power management systems
• Battery chargers and management
• Motor control
• Overcurrent protection

Package and Reliability

Housed in a 16-pin TSSOP package, the INA250A3PWR is designed with the robustness and reliability expected from Texas Instruments. Its operating temperature range of -40°C to +125°C ensures performance in challenging environmental conditions, making it a reliable choice for industrial and automotive applications.

Conclusion

The INA250A3PWR is a high-performance power monitor that integrates key functionalities to deliver accurate and reliable power measurements. Its ease of use, combined with Texas Instruments' reputation for quality, makes it an excellent choice for designers looking to optimize their power monitoring systems with a compact and efficient solution.