Texas Instruments

LM4898MMX/NOPB  

Audio Amplifiers

LM4898MMX/NOPB Description

The LM4898MMX/NOPB is a high-performance, monolithic Class AB audio power amplifier designed by Texas Instruments, part of the renowned Boomer® series. This IC is designed to deliver a maximum output power of 1.4W into a 4-ohm load, making it suitable for applications requiring moderate power levels. The LM4898MMX/NOPB operates from a supply voltage range of 2.4V to 5.5V, providing flexibility in power supply options and ensuring compatibility with a variety of systems.

This amplifier is housed in a 10-pin VSSOP package, which is ideal for surface-mount applications, ensuring ease of integration into compact and space-constrained designs. The device is REACH unaffected and RoHS3 compliant, adhering to stringent environmental and safety standards. Additionally, it has a moisture sensitivity level (MSL) of 1, indicating unlimited storage time without the need for special handling.

LM4898MMX/NOPB Features

The LM4898MMX/NOPB offers several advanced features that enhance its performance and reliability:

• Depopulation (Depop) Feature: This feature minimizes the pop and click sounds that can occur during power-up and power-down cycles, ensuring a seamless audio experience.
• Differential Inputs: The differential input stage provides improved noise rejection and common-mode rejection ratio (CMRR), resulting in cleaner audio output.
• Shutdown Capability: The shutdown feature allows the amplifier to be placed in a low-power state, significantly reducing power consumption when not in use.
• Thermal Protection: Built-in thermal protection safeguards the device from overheating, ensuring reliable operation even under demanding conditions.

These features collectively enhance the robustness and versatility of the LM4898MMX/NOPB, making it a reliable choice for various audio applications.

LM4898MMX/NOPB Applications

The LM4898MMX/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 applications such as MP3 players, smartphones, and tablets, where compact size and low power consumption are essential.
• Consumer Electronics: Suitable for home audio systems, soundbars, and other consumer electronics that require a reliable and efficient audio amplifier.
• Automotive Electronics: Given its robustness and thermal protection, the LM4898MMX/NOPB can be used in automotive infotainment systems and other vehicle audio applications.

Conclusion of LM4898MMX/NOPB

The LM4898MMX/NOPB, despite being marked as obsolete, remains a valuable component in the Texas Instruments portfolio due to its unique combination of performance, features, and reliability. Its Class AB design ensures high audio quality, while its differential inputs and thermal protection make it robust against noise and overheating. The inclusion of a shutdown feature and depopulation capability further enhances its suitability for applications where power efficiency and user experience are paramount.

For designers looking to integrate a compact, efficient, and reliable audio amplifier into their systems, the LM4898MMX/NOPB offers a compelling solution. Its wide supply voltage range, surface-mount package, and compliance with environmental standards make it a versatile choice for a variety of applications.

LM4898MMX/NOPB Documents

Download datasheets and manufacturer documentation for LM4898MMX/NOPB

Datasheets :

LM4898      

HTML Datasheet :

LM4898