Texas Instruments

LM4846TL/NOPB

LM4846TL/NOPB Description

The LM4846TL/NOPB is a monolithic Class AB audio amplifier designed for high-fidelity audio applications. Manufactured by Texas Instruments, this device is part of the Boomer® series, known for its robust performance and versatility. The LM4846TL/NOPB offers a maximum output power of 1.15W into an 8-ohm load and 75mW into a 32-ohm load, making it suitable for a variety of audio systems. It operates within a supply voltage range of 2.7V to 5.5V, ensuring compatibility with a wide range of power sources.

This amplifier is designed for surface mount applications, packaged in a Tape & Reel (TR) format, and has a Moisture Sensitivity Level (MSL) of 1, indicating it is suitable for unlimited storage conditions. The LM4846TL/NOPB is REACH unaffected and RoHS3 compliant, adhering to stringent environmental and safety standards. It is classified under HTSUS code 8542.33.0001 and has an ECCN of EAR99.

LM4846TL/NOPB Features

The LM4846TL/NOPB features a comprehensive set of functionalities that enhance its performance and usability. Key features include:

• 3D Audio Processing: Enhances the spatial perception of audio, providing a more immersive listening experience.
• Depop Functionality: Reduces the pop and click sounds during power-up and power-down, ensuring a smooth audio transition.
• I2C and SPI Interfaces: Facilitate easy control and communication with microcontrollers and other digital systems.
• Mute and Shutdown Modes: Allow for power savings and noise reduction when the amplifier is not in use.
• Thermal Protection: Ensures the device remains within safe operating temperatures, preventing damage due to overheating.
• Volume Control: Provides precise control over audio output levels, suitable for applications requiring dynamic volume adjustments.

LM4846TL/NOPB Applications

The LM4846TL/NOPB is ideal for a range of applications where high-quality audio output is required. Its compact size and versatile features make it suitable for:

• Portable Audio Devices: Including smartphones, tablets, and portable music players.
• Consumer Electronics: Such as smart speakers, soundbars, and home theater systems.
• Automotive Audio Systems: Enhancing in-car entertainment systems with high-fidelity sound.
• Professional Audio Equipment: Ideal for use in mixing consoles, studio monitors, and other professional audio setups.

Conclusion of LM4846TL/NOPB

The LM4846TL/NOPB is a versatile and high-performance Class AB audio amplifier from Texas Instruments. Its robust feature set, including 3D audio processing, thermal protection, and multiple control interfaces, makes it a standout choice for a variety of audio applications. Despite being marked as obsolete, the LM4846TL/NOPB remains a reliable option for designers and engineers seeking a compact, high-fidelity audio solution.