Texas Instruments

LM4681SQ/NOPB

LM4681SQ/NOPB Description

The LM4681SQ/NOPB is a high-performance Class D stereo amplifier from Texas Instruments, designed to deliver exceptional audio quality with high efficiency. This IC is part of the renowned Boomer® series, known for its robust performance and reliability. The LM4681SQ/NOPB is capable of delivering a maximum output power of 10W per channel into an 8-ohm load, making it suitable for a wide range of audio applications. Additionally, it can provide 94mW per channel into a 32-ohm load, ensuring versatility in different load conditions.

This amplifier operates within a supply voltage range of 9V to 15.5V, providing flexibility in power supply requirements. The LM4681SQ/NOPB is housed in a 48-lead WQFN package, which is ideal for surface-mount applications, ensuring ease of integration into compact designs. The product is REACH unaffected and RoHS3 compliant, adhering to stringent environmental standards. It also has a moisture sensitivity level (MSL) of 2 (1 Year), making it suitable for various manufacturing environments.

LM4681SQ/NOPB Features

• High Output Power: Delivers up to 10W per channel into an 8-ohm load, ensuring powerful audio output.
• Efficiency: As a Class D amplifier, it offers high efficiency, reducing power consumption and heat dissipation.
• Versatile Load Handling: Capable of driving both 8-ohm and 32-ohm loads, providing flexibility in application design.
• Wide Supply Voltage Range: Operates from 9V to 15.5V, accommodating various power supply configurations.
• Compact Packaging: The 48-lead WQFN package is ideal for surface-mount applications, saving space and simplifying assembly.
• Environmental Compliance: REACH unaffected and RoHS3 compliant, ensuring environmental sustainability.
• Moisture Sensitivity: MSL 2 (1 Year) rating, suitable for a variety of manufacturing conditions.

LM4681SQ/NOPB Applications

The LM4681SQ/NOPB is ideal for a range of applications where high-quality audio output and efficiency are paramount. Its high output power and versatility make it suitable for:

• Consumer Electronics: Ideal for portable audio devices, home theater systems, and soundbars where powerful and efficient audio amplification is required.
• Automotive Audio Systems: Suitable for car audio systems, providing high-quality sound with minimal power consumption.
• Professional Audio Equipment: Can be used in professional audio setups where reliability and performance are critical.
• Industrial Applications: Applicable in industrial settings where robust and efficient audio amplification is needed.

Conclusion of LM4681SQ/NOPB

The LM4681SQ/NOPB from Texas Instruments is a versatile and high-performance Class D stereo amplifier that offers significant advantages over similar models. Its ability to deliver high output power with high efficiency, combined with its wide supply voltage range and compact packaging, makes it an excellent choice for a variety of applications. The product's environmental compliance and moisture sensitivity rating further enhance its suitability for different manufacturing and operational environments. Despite being marked as obsolete, the LM4681SQ/NOPB remains a reliable and efficient solution for audio amplification needs.