Texas Instruments

LM4991LD/NOPB

LM4991LD/NOPB Description

The LM4991LD/NOPB is a high-performance audio amplifier from Texas Instruments, designed for applications requiring a robust and reliable audio output. This Class AB amplifier is part of the Boomer® series and is capable of delivering up to 3W of output power into a 3-ohm load. With a supply voltage range of 2.2V to 5.5V, it is well-suited for low-voltage applications. The LM4991LD/NOPB is surface-mountable and is available in a tape and reel packaging, making it ideal for automated assembly processes.

LM4991LD/NOPB Features

Key features of the LM4991LD/NOPB include:

• Depop, Shutdown, and Thermal Protection: These features ensure the amplifier's reliability and longevity by preventing damage from overcurrent, overvoltage, and overheating.
• 3W x 1 @ 3Ohm Output Power: The amplifier can deliver a continuous output power of 3 watts into a 3-ohm load, making it suitable for a wide range of audio applications.
• 2.2V ~ 5.5V Supply Voltage: The LM4991LD/NOPB can operate over a wide supply voltage range, making it compatible with various power sources.
• RoHS3 Compliance: This ensures that the amplifier is environmentally friendly and meets the latest regulatory requirements.
• REACH Unaffected Status: The LM4991LD/NOPB is not affected by the Registration, Evaluation, Authorization, and Restriction of Chemicals (REACH) regulation, ensuring uninterrupted supply and use.

LM4991LD/NOPB Applications

The LM4991LD/NOPB is ideal for a variety of audio applications, including:

• Portable Audio Devices: Due to its low power consumption and small form factor, it is perfect for portable audio devices like headphones and earbuds.
• Smartphones and Tablets: The amplifier can be used in smartphones and tablets to provide high-quality audio output.
• Audio Transmitters and Receivers: The LM4991LD/NOPB can be used in Bluetooth and Wi-Fi audio transmitters and receivers for clear and powerful sound.
• Home Audio Systems: It can be integrated into home audio systems to provide amplified sound for speakers and other audio components.

Conclusion of LM4991LD/NOPB

The LM4991LD/NOPB is a versatile and powerful audio amplifier that offers a combination of high output power, low power consumption, and robust protection features. Its wide supply voltage range, RoHS3 compliance, and REACH unaffected status make it an excellent choice for a variety of audio applications. With its performance benefits and unique features, the LM4991LD/NOPB stands out as a reliable and efficient solution for audio amplification needs.