Texas Instruments

LM4890MMX/NOPB  

Audio Amplifiers

The LM4890MMX/NOPB is a high-performance audio power amplifier integrated circuit (IC) manufactured by Texas Instruments. This device is designed to provide high-quality audio amplification for a wide range of applications, including professional audio systems, home theater systems, and high-fidelity audio equipment.

Description:

The LM4890MMX/NOPB is a monolithic, high-power audio amplifier IC that operates from a single supply voltage. It features a Class-D output stage, which provides high efficiency and low power consumption compared to traditional Class-A or Class-AB amplifiers. The device is available in a thermally enhanced 28-pin Multiwatt package (MMX), which allows for efficient heat dissipation and improved reliability.

Features:

1. High efficiency: The Class-D output stage of the LM4890MMX/NOPB offers high efficiency, typically around 90%, which reduces power consumption and heat generation.
2. Wide supply voltage range: The device can operate from a supply voltage range of 6V to 18V, making it suitable for various applications and power supply configurations.
3. Low distortion: The LM4890MMX/NOPB provides low total harmonic distortion (THD) and low noise, ensuring high-quality audio reproduction.
4. High output power: The device is capable of delivering up to 60W of output power into an 8-ohm load, making it suitable for demanding audio applications.
5. Easy to use: The LM4890MMX/NOPB features a simple external filter network and requires minimal external components for operation.
6. Thermal protection: The device includes an integrated thermal shutdown circuit that protects it from overheating and potential damage.
7. Small footprint: The 28-pin Multiwatt package allows for a compact design, making it suitable for space-constrained applications.

Applications:

1. Professional audio systems: The LM4890MMX/NOPB can be used in professional audio systems, such as public address systems and live sound reinforcement, where high power and audio quality are required.
2. Home theater systems: The device is suitable for home theater systems, providing high-quality audio amplification for multi-channel speaker setups.
3. High-fidelity audio equipment: The LM4890MMX/NOPB can be used in high-fidelity audio equipment, such as amplifiers and preamplifiers, where low distortion and high audio quality are essential.
4. Portable audio devices: Due to its high efficiency and low power consumption, the LM4890MMX/NOPB can be used in portable audio devices, such as Bluetooth speakers and soundbars, to extend battery life.
5. Car audio systems: The device can be used in car audio systems, providing high-quality audio amplification for in-vehicle speaker systems.

In summary, the LM4890MMX/NOPB is a high-performance audio power amplifier IC from Texas Instruments that offers high efficiency, low distortion, and high output power. Its wide supply voltage range, simple external filter network, and thermal protection features make it suitable for a variety of audio applications, including professional audio systems, home theater systems, high-fidelity audio equipment, portable audio devices, and car audio systems.

LM4890MMX/NOPB Documents

Download datasheets and manufacturer documentation for LM4890MMX/NOPB

Datasheets :

LM4890 Datasheet      

HTML Datasheet :

LM4890 Datasheet      

PCN Design/Specification :

VSSOP Pkg Copper Wire 07/Jun/2013