LM4995SDX/NOPB

The LM4995SDX/NOPB is a high-performance audio amplifier integrated circuit (IC) produced by Texas Instruments. It is designed for use in portable audio applications, such as smartphones, tablets, and other battery-operated devices, where efficiency and sound quality are paramount.

Key Features:

1. Class D Amplifier: The LM4995 operates as a Class D amplifier, which means it uses pulse-width modulation (PWM) to achieve high efficiency. This allows it to deliver significant power output while minimizing heat generation, making it ideal for battery-powered applications.

2. Output Power: The amplifier can deliver up to 2.5W of output power per channel into a 4-ohm load, and up to 1.5W into an 8-ohm load. This makes it suitable for driving small speakers or headphones.

3. Low Distortion: The LM4995 boasts low total harmonic distortion (THD) and noise levels, ensuring high-fidelity audio reproduction. This is crucial for applications where sound quality is a priority.

4. Integrated Features: The IC includes built-in features such as a thermal shutdown protection mechanism, short-circuit protection, and a mute function. These features enhance the reliability and safety of the device during operation.

5. Power Supply Range: It operates over a wide supply voltage range, typically from 2.5V to 5.5V, making it versatile for various battery configurations.

6. Compact Package: The LM4995 is available in a small, surface-mount package (SOT-23), which is advantageous for space-constrained designs. Its compact size allows for easy integration into printed circuit boards (PCBs).

7. Efficiency: With an efficiency rating of up to 90%, the LM4995 minimizes power loss, which is particularly beneficial for extending battery life in portable devices.

8. Application Versatility: This amplifier is suitable for a range of applications, including portable speakers, televisions, and other consumer electronics that require high-quality audio amplification.

Typical Applications:

• Portable audio devices
• Bluetooth speakers
• Personal media players
• TV audio amplification
• Computer speakers

Conclusion:

The LM4995SDX/NOPB from Texas Instruments is a robust and efficient audio amplifier solution that combines high output power, low distortion, and integrated protection features in a compact package. Its design is tailored for modern portable audio applications, making it a popular choice among engineers and designers looking to enhance audio performance in their products.