The LM4890MBD is an audio power amplifier designed by the renowned semiconductor company, Texas Instruments. This compact and efficient integrated circuit is part of TI's extensive audio amplifier product line and is tailored for portable applications. The LM4890MBD is capable of delivering 1 Watt of continuous average power to an 8 Ohm load with less than 1% distortion (THD+N) over an audio spectrum range from a 5V power supply.

Key Features

• Output Power: Delivers 1W into 8Ω load.
• Power Supply Range: 2.2V - 5.5V, making it suitable for battery-operated devices.
• THD+N: Less than 1% at 1W output ensures high-quality audio reproduction.
• Shutdown Mode: Features a shutdown mode that significantly reduces power consumption when not in use.
• External Gain Configuration: Allows for flexibility in gain adjustments with external components.

Applications

The LM4890MBD is versatile and can be used in a variety of portable devices due to its small footprint and efficient operation. Typical applications include:

• Mobile Phones
• Portable Gaming Devices
• MP3 Players
• PDAs
• Notebook Computers

Package and Quality

The amplifier comes in an 8-pin MSOP (Micro Small Outline Package) that is designed for space-conscious applications. Texas Instruments ensures high-quality standards, and the LM4890MBD is no exception. It is manufactured with the reliability and performance that customers have come to expect from TI products.

Support and Resources

Texas Instruments provides comprehensive technical support for the LM4890MBD, including datasheets, reference designs, and application notes. Engineers and product designers can access these resources on the TI website to facilitate the integration of the LM4890MBD into their projects.