Product Overview: INA381A1IDGSR by Texas Instruments

The INA381A1IDGSR is a sophisticated current-sense amplifier integrated with a voltage output and a precision comparator designed by Texas Instruments (TI), a leader in semiconductor solutions. This device is part of the INA381 family of products that offer high accuracy and performance in current measurement for a wide range of applications.

Key Features and Benefits

• Integrated Current-Sense Amplifier: The INA381A1IDGSR features a bidirectional, high-side current-sense amplifier that provides a voltage output proportional to the current passing through a shunt resistor. This allows for accurate monitoring of both charging and discharging currents in applications such as battery management systems.
• Precision Comparator with Latch Enable: The device includes an integrated comparator with an internal reference, which enables overcurrent detection and provides a warning signal when the current exceeds a user-defined threshold. The latch enable feature allows the comparator to retain its state until it is reset, ensuring reliable fault indication.
• Adjustable Threshold: Users can set the overcurrent threshold according to their specific needs by connecting a reference voltage to the REF pin. This flexibility makes the INA381A1IDGSR suitable for a variety of applications and protection requirements.
• Low Quiescent Current: With a quiescent current of only 350 μA (typical), the INA381A1IDGSR is optimized for power-sensitive applications, contributing to energy efficiency and longer battery life.
• Wide Common-Mode Range: The device operates over a common-mode voltage range of -0.2 V to +26 V, allowing for use in systems with high-side current sensing at various voltage levels.
• Small Footprint: Packaged in a small VSSOP-10 (DGSR) package, the INA381A1IDGSR is ideal for space-constrained applications.

Applications

The INA381A1IDGSR is versatile and can be used in numerous applications, including:

• Power management in servers and telecom equipment
• Battery chargers and management systems for consumer electronics
• Overcurrent protection circuits
• Industrial automation and motor control

With its combination of precision, integration, and efficiency, the INA381A1IDGSR from Texas Instruments is a reliable choice for designers looking to enhance system safety and performance through accurate current-sensing solutions.