Texas Instruments

LM4874MH/NOPB

LM4874MH/NOPB Description

The LM4874MH/NOPB is a high-performance stereo audio amplifier from Texas Instruments, designed to deliver robust audio output with minimal distortion. This Class AB amplifier is part of the renowned Boomer® series, known for its exceptional audio quality and reliability. The LM4874MH/NOPB is capable of delivering a maximum output power of 2.6W per channel into a 3-ohm load, making it suitable for applications requiring high-fidelity audio output.

The amplifier operates within a supply voltage range of 3V to 5.5V, ensuring compatibility with a wide range of power sources. It features a surface-mount package, specifically a 20-lead HTSSOP, which facilitates easy integration into compact and space-constrained designs. The LM4874MH/NOPB also includes several advanced features such as depopulation (depop), differential inputs, shutdown capability, and thermal protection, enhancing its versatility and reliability.

LM4874MH/NOPB Features

• High Output Power: Delivers 2.6W per channel into a 3-ohm load, ensuring powerful audio output.
• Wide Supply Voltage Range: Operates efficiently between 3V and 5.5V, providing flexibility in power supply options.
• Advanced Features: Includes depopulation (depop) to minimize popping sounds during power-up and shutdown, differential inputs for improved signal integrity, a shutdown feature for power conservation, and thermal protection to prevent damage from overheating.
• Surface-Mount Packaging: The 20-lead HTSSOP package is ideal for surface-mount applications, enabling compact and reliable designs.
• Compliance and Safety: The LM4874MH/NOPB is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards.
• Moisture Sensitivity Level: MSL 1 (Unlimited) indicates that the device is not sensitive to moisture, making it suitable for various environmental conditions.

LM4874MH/NOPB Applications

The LM4874MH/NOPB is ideal for a variety of applications where high-quality audio output is required. Its high output power and advanced features make it suitable for:

• Consumer Electronics: Portable audio devices, such as MP3 players, tablets, and smartphones, benefit from the LM4874MH/NOPB's high-fidelity audio output.
• Automotive Audio Systems: The robust performance and thermal protection make it suitable for in-car entertainment systems.
• Professional Audio Equipment: Ideal for compact speaker systems, soundbars, and other audio devices that require a high power-to-size ratio.
• Industrial Applications: The LM4874MH/NOPB can be used in industrial control panels and monitoring systems where clear and powerful audio feedback is necessary.

Conclusion of LM4874MH/NOPB

The LM4874MH/NOPB from Texas Instruments is a versatile and high-performance Class AB audio amplifier that offers significant advantages over similar models. Its ability to deliver 2.6W per channel into a 3-ohm load, combined with its wide supply voltage range and advanced features, makes it an excellent choice for a variety of applications. The surface-mount package and compliance with environmental and safety standards further enhance its appeal. While the product is now obsolete, it remains a reliable option for legacy systems and applications where its unique features and performance benefits are still highly valued.