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LM4873LQ

LM4873LQ

Manufacturer No:

LM4873LQ

Manufacturer:

National Semiconductor

Description:

AUDIO AMPLIFIER, 2 CHANNEL(S)

Datasheet:

Datasheet

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LM4873LQ Specifications

  • Type
    Parameter
  • Package / Case
    24-WFQFN Exposed Pad
  • Supplier Device Package
    24-WQFN (4x5)
  • Operating Temperature
    -40°C ~ 85°C (TA)
  • Mounting Type
    Surface Mount
  • Features
    Depop, Input Multiplexer, Shutdown, Thermal Protection
  • Voltage - Supply
    2V ~ 5.5V
  • Max Output Power x Channels @ Load
    3W x 2 @ 3Ohm; 440mW x 2 @ 8Ohm
  • Output Type
    2-Channel (Stereo) with Stereo Headphones
  • Type
    Class AB
  • Packaging
    Bulk
  • Product Status
    Active
  • Series
    Boomer®
The LM4873LQ is a power amplifier integrated circuit (IC) chip designed for audio applications. Some of its advantages and application scenarios include:1. Small form factor: The LM4873LQ is available in a small 24-pin QFN package, making it suitable for compact audio devices such as portable speakers, headphones, and earphones.2. Low power consumption: The chip operates on low power supply voltages (typically 2.0V to 5.5V) and consumes minimal power, making it ideal for battery-powered devices.3. High efficiency: The LM4873LQ incorporates a Class D amplifier architecture, which offers high efficiency and reduces power dissipation, resulting in longer battery life for portable devices.4. High output power: Despite its small size and low power consumption, the LM4873LQ can deliver significant output power (up to 3W per channel) to drive small speakers or headphones effectively.5. Wide supply voltage range: The chip can operate over a wide range of supply voltages, allowing it to be used in various audio systems with different power supply configurations.6. Thermal and short-circuit protection: The LM4873LQ includes built-in thermal shutdown and short-circuit protection mechanisms, ensuring safe operation and preventing damage to the chip and connected audio components.Application scenarios for the LM4873LQ include:1. Portable audio devices: The chip can be used in portable speakers, headphones, and earphones to provide high-quality audio amplification while maintaining low power consumption.2. Mobile devices: The LM4873LQ can be integrated into smartphones, tablets, and other mobile devices to enhance their audio output capabilities, enabling louder and clearer sound.3. Gaming consoles: The chip can be utilized in gaming consoles or handheld gaming devices to drive the audio output, delivering immersive sound experiences to users.4. Personal computers: The LM4873LQ can be employed in desktop or laptop computers to amplify audio signals, improving the sound quality of built-in speakers or external audio systems.5. Automotive audio systems: The chip can be used in car audio systems to amplify audio signals for speakers, providing enhanced sound quality and volume in vehicles.Overall, the LM4873LQ offers a compact, efficient, and versatile solution for audio amplification in a wide range of applications.
LM4873LQ Relevant information