Texas Instruments

LM4990MH/NOPB

The LM4990MH/NOPB is a high-performance audio power amplifier developed by Texas Instruments. It is designed to provide high-quality audio amplification for a wide range of applications, including home audio systems, professional audio equipment, and automotive audio systems.

Description:

The LM4990MH/NOPB is a monolithic integrated circuit that operates from a single supply voltage of 4.5V to 18V. It features a high output power of up to 60W at 4 ohms and 90W at 8 ohms with less than 0.1% total harmonic distortion (THD). The device also has a low output noise of -108dB, ensuring high-quality audio reproduction.

Features:

1. High output power: The LM4990MH/NOPB can deliver up to 60W at 4 ohms and 90W at 8 ohms with low distortion.
2. Low output noise: The device has a low output noise of -108dB, ensuring high-quality audio reproduction.
3. Wide supply voltage range: The LM4990MH/NOPB operates from a single supply voltage of 4.5V to 18V, making it suitable for various applications.
4. High efficiency: The device features a high efficiency of up to 90%, reducing power consumption and heat dissipation.
5. Thermal protection: The LM4990MH/NOPB includes thermal shutdown and over-temperature protection to ensure reliable operation.
6. Easy to use: The device has a simple and flexible design, making it easy to integrate into various audio systems.

Applications:

1. Home audio systems: The LM4990MH/NOPB can be used in home audio systems, such as stereo receivers and soundbars, to provide high-quality audio amplification.
2. Professional audio equipment: The device is suitable for use in professional audio equipment, such as mixing consoles and amplifiers, due to its high output power and low distortion.
3. Automotive audio systems: The LM4990MH/NOPB can be used in automotive audio systems to provide powerful and distortion-free audio amplification.
4. Portable audio devices: The device's low power consumption and high efficiency make it suitable for use in portable audio devices, such as Bluetooth speakers and headphones.
5. Multichannel audio systems: The LM4990MH/NOPB can be used in multichannel audio systems, such as surround sound systems, to provide high-quality amplification for each channel.

In summary, the LM4990MH/NOPB is a high-performance audio power amplifier that offers high output power, low distortion, and low output noise. Its wide supply voltage range and high efficiency make it suitable for a variety of applications, including home audio systems, professional audio equipment, automotive audio systems, portable audio devices, and multichannel audio systems.