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LM4811MM

Part No LM4811MM
Manufacturer National Semiconductor (TI)
Description Dual 105mW Headphone Amplifier with Digital Volume
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Manufacturer National Semiconductor (TI)
Win Source Part Number 1199971-LM4811MM
Manufacturer Homepage www.national.com
Popularity Medium
Supply and Demand Status Balance
Ultra Librarian 3D Model Ultra Librarian LM4811MM CAD Model

Description

The LM4811MM is a Boomer series audio power amplifier manufactured by National Semiconductor (now Texas Instruments or TI). It is designed to deliver high-quality audio output to headphones or speakers in portable devices and other low-power applications. This amplifier is capable of driving stereo headphones or a single speaker in mono mode with minimal external components.

Applications:

  • Headphone Amplifiers: Used in portable audio players, smartphones, and other devices to drive headphones.
  • Portable Speakers: Employed in portable speakers to amplify audio signals.
  • Laptop Computers: Used in laptops to provide audio output through speakers.
  • Gaming Consoles: Provides audio amplification for gaming consoles.
  • Bluetooth Speakers: Used in Bluetooth speakers to amplify audio signals wirelessly transmitted.

Features:

  • Stereo Headphone Amplifier: Designed to drive stereo headphones with high-quality audio.
  • Mono Speaker Amplifier: Can be configured to drive a single speaker in mono mode.
  • Low THD+N: Low Total Harmonic Distortion plus Noise for clear audio reproduction.
  • Shutdown Mode: Low-power shutdown mode to conserve battery life.
  • No External Components Required: Minimal external components needed for operation.
  • Surface Mount Package: Available in a small MSOP package for compact designs.
  • Short-Circuit Protection: Protects the amplifier from short-circuit conditions.

Benefits:

  • High-Quality Audio: Delivers clear and high-quality audio output.
  • Efficient Power Consumption: Low power consumption extends battery life in portable devices.
  • Simple Implementation: Minimal external components required, simplifying circuit design.
  • Compact Design: Small package size allows for space-saving designs.
  • Robust Protection: Short-circuit protection enhances system reliability.

Technical Specifications:

Typical specifications (refer to the datasheet for precise values):

  • Supply Voltage: 2.4V to 5.5V
  • Output Power (Stereo): 25mW per channel into 32 Ohms at 5V
  • Output Power (Mono): 50mW into 16 Ohms at 5V
  • THD+N: Typically 0.1% at 1kHz
  • Shutdown Current: Typically less than 1μA
  • Operating Temperature Range: -40°C to +85°C
  • Package: MSOP-8

The LM4811MM is a high-performance audio power amplifier that is ideal for driving headphones or speakers in portable devices. Its low distortion, efficient power consumption, and compact size make it a popular choice for various audio applications.

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Pricing & Ordering

Quantity Unit Price Ext. Price
110+ $0.4570 $50.2700
270+ $0.3750 $101.2500
415+ $0.3633 $150.7695
570+ $0.3516 $200.4120
740+ $0.3399 $251.5260
985+ $0.3047 $300.1295
* Prices exclude shipping and taxes. Shipping costs are calculated at checkout.
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Availability: 27,465 pieces
MOQ: 110 pcs
Order Increment : 1 pcs
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