Texas Instruments

LMP8481ASQDGKRQ1

LMP8481ASQDGKRQ1 Description

The LMP8481ASQDGKRQ1 is a high-performance, automotive-grade current sense amplifier designed to meet the stringent requirements of the AEC-Q100 standard. Manufactured by Texas Instruments, this device offers a wide supply voltage range from 4.5 V to 76 V, making it suitable for a variety of automotive applications. With a -3dB bandwidth of 270 kHz and a gain bandwidth product of 270 kHz, the LMP8481ASQDGKRQ1 ensures precise current sensing even in high-frequency environments. Its low quiescent current of 88µA and input bias current of 6.3 µA contribute to high efficiency and minimal power loss, which is crucial for battery-powered systems.

LMP8481ASQDGKRQ1 Features

• Wide Supply Voltage Range: The LMP8481ASQDGKRQ1 operates over a wide supply voltage range from 4.5 V to 76 V, providing flexibility and robustness in various automotive power systems.
• High Bandwidth: With a -3dB bandwidth of 270 kHz and a gain bandwidth product of 270 kHz, this amplifier ensures accurate current sensing across a broad frequency spectrum.
• Low Quiescent Current: The device features a low quiescent current of 88µA, which is ideal for applications where power consumption must be minimized.
• Low Input Bias Current: The low input bias current of 6.3 µA ensures minimal voltage drop across the sense resistor, leading to more accurate current measurements.
• Low Input Offset Voltage: The input offset voltage of 80 µV ensures high accuracy in current sensing applications.
• Automotive Grade: Certified to the AEC-Q100 standard, the LMP8481ASQDGKRQ1 is designed to withstand the harsh conditions of automotive environments.
• Surface Mount Package: The surface mount package type facilitates easy integration into compact and high-density designs.
• Single Circuit Design: The single circuit design simplifies the implementation and reduces the overall complexity of the system.

LMP8481ASQDGKRQ1 Applications

The LMP8481ASQDGKRQ1 is ideal for a range of automotive applications where precise current sensing is critical. These applications include:

• Battery Management Systems: Accurate current sensing is essential for monitoring battery charge and discharge currents, ensuring optimal battery performance and longevity.
• Motor Control: Precise current sensing in motor control systems enables efficient and reliable motor operation, enhancing overall system performance.
• Power Supply Monitoring: The device can be used to monitor the current draw of various power supply systems, ensuring safe and efficient operation.
• Overcurrent Protection: The LMP8481ASQDGKRQ1 can be employed in overcurrent protection circuits to safeguard electronic components from damage due to excessive current.

Conclusion of LMP8481ASQDGKRQ1

The LMP8481ASQDGKRQ1 from Texas Instruments is a versatile and reliable current sense amplifier designed specifically for automotive applications. Its wide supply voltage range, high bandwidth, and low quiescent current make it an excellent choice for applications requiring precise current sensing. The device's automotive-grade certification ensures it can withstand the demanding conditions of automotive environments. Whether used in battery management systems, motor control, or power supply monitoring, the LMP8481ASQDGKRQ1 offers superior performance and reliability, making it a standout choice in the market.