Texas Instruments

TPS2491DGSR

The TPS2491DGSR is a high-precision, low-side current sense amplifier from Texas Instruments. It is designed to provide accurate and reliable current sensing in a wide range of applications, including battery monitoring, motor control, and power management systems.

Description:

The TPS2491DGSR is a monolithic, precision current sense amplifier that offers high accuracy, low offset, and excellent thermal stability. It features a wide input voltage range (2.7V to 5.5V) and a low input offset voltage (typical 50µV). The device also has a low quiescent current (typically 90µA), making it suitable for battery-powered applications.

Features:

1. High precision: The TPS2491DGSR offers a low input offset voltage (typical 50µV) and excellent thermal stability, ensuring accurate current sensing.
2. Wide input voltage range: The device can operate with an input voltage range of 2.7V to 5.5V, making it suitable for a variety of applications.
3. Low quiescent current: With a typical quiescent current of 90µA, the TPS2491DGSR is energy-efficient and ideal for battery-powered systems.
4. Wide sensing range: The device can accurately measure currents from ±20mV to ±2V, covering a broad range of current sensing applications.
5. Programmable gain: The gain of the TPS2491DGSR can be programmed via an external resistor, allowing for customization of the sensing range.
6. Small package: The device is available in a compact 10-pin WSON package, making it suitable for space-constrained applications.

Applications:

1. Battery monitoring: The TPS2491DGSR can be used to accurately measure the current flowing in and out of a battery, providing critical information for battery management systems.
2. Motor control: In motor control applications, the device can be used to measure the current flowing through the motor windings, allowing for precise control and protection.
3. Power management systems: The TPS2491DGSR can be used to monitor and regulate the current in power management systems, ensuring efficient operation and protection from overloads.
4. Energy harvesting systems: In energy harvesting applications, the device can be used to measure the current generated by renewable energy sources, such as solar panels or wind turbines.
5. LED lighting: The TPS2491DGSR can be used to monitor the current flowing through LED arrays, allowing for precise control and protection against overcurrent conditions.

In summary, the TPS2491DGSR is a high-precision, low-side current sense amplifier from Texas Instruments that offers a wide input voltage range, low quiescent current, and programmable gain. It is suitable for a variety of applications, including battery monitoring, motor control, power management systems, energy harvesting systems, and LED lighting.