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LM49155TL/NOPB

  • In Stock: 1700
  • Available: 20449

Reference Price(In US Dollars)

QtyUnit PriceExt.Price
1+US $8.40400US $8.40
10+US $7.56360US $75.64
30+US $5.88280US $176.48
100+US $4.83230US $483.23
500+US $4.62220US $2311.10
1000+US $4.20200US $4202.00

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Description

The LM49155TL/NOPB is a high-performance audio amplifier integrated circuit (IC) produced by Texas Instruments. It is designed for portable audio applications, providing a compact and efficient solution for driving speakers or headphones. Here’s a detailed description of its features and specifications:

General Overview:

  • Type: Class D audio amplifier
  • Package: Typically available in a 20-pin HTQFP (Thin Quad Flat Package) or similar surface-mount package, which allows for easy integration into compact designs.
  • Power Supply Voltage: The device operates within a voltage range of 2.5V to 5.5V, making it suitable for battery-powered applications.

Key Features:

  • Output Power: The LM49155 can deliver up to 1.5W of output power per channel into an 8-ohm load, and up to 2.5W into a 4-ohm load, providing sufficient power for driving small speakers or headphones.
  • Low Distortion: It features low total harmonic distortion (THD) and noise, ensuring high-quality audio reproduction.
  • Efficiency: The Class D architecture allows for high efficiency, typically around 85% or higher, which helps in extending battery life in portable devices.
  • Integrated Functions: The IC includes built-in features such as a thermal shutdown protection, short-circuit protection, and a mute function, enhancing reliability and user experience.
  • Gain Control: The amplifier has adjustable gain settings, allowing designers to tailor the output level to their specific application needs.

Applications:

  • Portable Devices: Ideal for smartphones, tablets, and portable speakers where space and power efficiency are critical.
  • Consumer Electronics: Suitable for use in televisions, soundbars, and other home audio systems.
  • Wearable Technology: Can be integrated into wearable devices that require audio output without compromising on size or battery life.

Performance Characteristics:

  • Frequency Response: The amplifier typically offers a wide frequency response, ensuring that it can handle a broad range of audio signals effectively.
  • Input Configuration: It supports differential input configurations, which helps in reducing noise and improving sound quality.

Thermal and Electrical Characteristics:

  • Operating Temperature Range: The LM49155 is designed to operate in a wide temperature range, making it suitable for various environmental conditions.
  • Power Dissipation: The IC is designed to manage power dissipation effectively, minimizing heat generation during operation.

Conclusion:

The LM49155TL/NOPB from Texas Instruments is a versatile and efficient audio amplifier solution, ideal for a variety of portable and consumer electronic applications. Its combination of high output power, low distortion, and integrated protection features makes it a reliable choice for designers looking to enhance audio performance in compact devices.

Alternatives

Functional Equivalent (FE) materials, including Fused Filament Fabrication (FFF) form, assembly, and functionally compatible substitute materials.

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