Texas Instruments

LM4961LQ/NOPB  

Audio Amplifiers

LM4961LQ/NOPB Description

The LM4961LQ/NOPB is a high-performance, Class AB monolithic audio amplifier from Texas Instruments, designed to deliver exceptional audio quality and robust performance in a compact surface-mount package. This amplifier is part of the renowned Boomer® series, known for its reliability and efficiency in various audio applications. The LM4961LQ/NOPB operates within a wide supply voltage range of 2.7V to 9V, making it suitable for a variety of power supply configurations.

LM4961LQ/NOPB Features

The LM4961LQ/NOPB boasts several advanced features that enhance its functionality and versatility. Key features:

include- Depopulation (Depop) Feature: This feature minimizes the pop and click sounds that can occur during power-up and power-down sequences, ensuring a smooth and pleasant user experience.

• Shutdown Capability: The amplifier includes a shutdown mode that significantly reduces power consumption when not in use, making it ideal for battery-powered devices.
• Thermal Protection: Built-in thermal protection ensures the amplifier operates within safe temperature limits, preventing damage and extending the product's lifespan.
• Compliance and Packaging: The LM4961LQ/NOPB is REACH unaffected and ROHS3 compliant, adhering to stringent environmental and safety standards. It is packaged in a tape and reel format (Tape & Reel, TR), which is suitable for automated assembly processes.
• Moisture Sensitivity Level (MSL): With an MSL rating of 1 (Unlimited), the LM4961LQ/NOPB is highly resistant to moisture, ensuring reliability in various environmental conditions.

LM4961LQ/NOPB Applications

The LM4961LQ/NOPB is well-suited for a range of applications where high-quality audio output and efficient power management are critical. Some specific use cases include:

• Portable Audio Devices: Ideal for battery-operated devices such as portable speakers, MP3 players, and Bluetooth audio systems, where the shutdown feature and low power consumption are particularly beneficial.
• Consumer Electronics: Suitable for applications like smart TVs, soundbars, and home theater systems, where the wide voltage range and thermal protection ensure stable performance.
• Automotive Audio Systems: Given its robustness and reliability, the LM4961LQ/NOPB can be used in car audio systems, providing clear and powerful audio output-.
  Professional Audio Equipment: The high performance and compact size make it a good fit for professional audio applications such as mixing consoles, PA systems, and studio monitors.

Conclusion of LM4961LQ/NOPB

The LM4961LQ/NOPB from Texas Instruments is a versatile and high-performance Class AB audio amplifier that offers a combination of advanced features and robust performance. Its wide voltage range, thermal protection, and low power consumption make it suitable for a variety of applications, from portable devices to professional audio systems. Despite its obsolete status, the LM4961LQ/NOPB remains a reliable choice for engineers and designers seeking a high-quality audio solution.

LM4961LQ/NOPB Documents

Download datasheets and manufacturer documentation for LM4961LQ/NOPB

Datasheets :

LM4961 (LQBD)      

PCN Obsolescence/ EOL :

Multiple Devices 28/Sep/2015      

HTML Datasheet :

LM4961 (LQBD)