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LM4891LD

LM4891LD

Manufacturer No:

LM4891LD

Manufacturer:

National Semiconductor

Description:

AUDIO AMPLIFIER

Datasheet:

Datasheet

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LM4891LD Specifications

  • Type
    Parameter
  • Package / Case
    10-WFDFN Exposed Pad
  • Supplier Device Package
    10-WSON (3x4)
  • Operating Temperature
    -40°C ~ 85°C (TA)
  • Mounting Type
    Surface Mount
  • Features
    Depop, Shutdown, Thermal Protection
  • Voltage - Supply
    2.2V ~ 5.5V
  • Max Output Power x Channels @ Load
    1W x 1 @ 8Ohm
  • Output Type
    1-Channel (Mono)
  • Type
    Class AB
  • Packaging
    Bulk
  • Product Status
    Obsolete
  • Series
    Boomer®
The LM4891LD is a low-power audio amplifier integrated circuit chip manufactured by Texas Instruments. It is specifically designed for portable devices and offers several advantages and application scenarios:1. Low power consumption: The LM4891LD is optimized for low power operation, making it ideal for battery-powered devices such as smartphones, tablets, portable media players, and portable gaming consoles. It helps extend the battery life of these devices.2. Small form factor: The chip comes in a small package, making it suitable for space-constrained applications. It can be easily integrated into compact devices without occupying much space.3. High efficiency: The LM4891LD offers high efficiency, ensuring minimal power wastage and maximizing the output power. This makes it suitable for applications where power efficiency is crucial.4. Wide supply voltage range: The chip operates over a wide supply voltage range, typically from 2.7V to 5.5V. This flexibility allows it to be used with various power sources, including single-cell batteries and USB power.5. Integrated features: The LM4891LD includes several integrated features, such as a stereo headphone amplifier, a mono speaker amplifier, and a shutdown mode. These features simplify the design process and reduce the need for external components.6. Thermal and short-circuit protection: The chip incorporates thermal and short-circuit protection mechanisms, ensuring safe operation even under adverse conditions. This protects the chip from damage and enhances its reliability.Application scenarios for the LM4891LD include:1. Mobile devices: The chip can be used in smartphones, tablets, and portable media players to amplify audio signals for headphones or external speakers. Its low power consumption and small form factor make it suitable for these applications.2. Portable gaming consoles: The LM4891LD can enhance the audio experience in portable gaming consoles by amplifying the sound output. Its low power consumption is beneficial for gaming devices that rely on batteries.3. Wearable devices: The chip can be used in wearable devices such as smartwatches and fitness trackers to amplify audio signals for headphones or small speakers. Its small form factor and low power consumption are advantageous for these compact devices.4. IoT devices: The LM4891LD can be utilized in various Internet of Things (IoT) devices that require audio amplification, such as smart speakers, voice assistants, and home automation systems. Its low power consumption and integrated features make it suitable for these applications.Overall, the LM4891LD integrated circuit chip offers advantages such as low power consumption, small form factor, high efficiency, and integrated features. Its application scenarios include portable devices, wearable devices, gaming consoles, and IoT devices.
LM4891LD Relevant information