Datasheet4U Logo Datasheet4U.com

LM4674A - Filterless 2.5W Stereo Class D Audio Power Amplifier

Description

The LM4674A is a single supply, high efficiency, 2.5W/channel, filterless switching audio amplifier.

A low noise PWM architecture eliminates the output filter, reducing external component count, board area consumption, system cost, and simplifying design.

Features

  • 1.
  • 2 Output Short Circuit Protection.
  • Stereo Class D Operation.
  • No Output Filter Required.
  • Logic Selectable Gain.
  • Independent Shutdown Control.
  • Minimum External Components.
  • Click and Pop Suppression.
  • Micro-Power Shutdown.
  • Available in Space-Saving 2mm x 2mm x 0.6mm DSBGA Package.

📥 Download Datasheet

📁 Similar Datasheet

  • LM4674 - Filterless 2.5W Stereo Class D Audio Power Amplifier (National Semiconductor)
  • LM4670 - Filterless High Efficiency 3W Switching Audio Amplifier (National Semiconductor)
  • LM4671 - Filterless High Efficiency 2.5W Switching Audio Amplifier (National Semiconductor)
  • LM4673 - Class D Audio Power Amplifier (National Semiconductor)
  • LM4675 - Class D Audio Power Amplifier (National Semiconductor)
  • LM4610 - Dual DC Operated Tone/Volume/Balance (National Semiconductor)
  • LM4651 - Overture Audio Power Amplifier (National Semiconductor)
  • LM4652 - Overture Audio Power Amplifier (National Semiconductor)
  • LM4663 - 2 Watt Stereo Class D Audio Power Amplifier (National Semiconductor)
  • LM4664 - Filterless High Efficiency 1.1W Switching Audio Amplifier (National Semiconductor)
Other Datasheets by Texas Instruments
  • LM4674 - Filterless 2.5W Stereo Class D Audio Power Amplifier
  • LM4670 - Filterless High Efficiency 3W Switching Audio Amplifier
  • LM4671 - Filterless High Efficiency 2.5W Switching Audio Amplifier
  • LM4673 - Class-D Audio Power Amplifier
  • LM4673SDBD - Class-D Audio Power Amplifier
  • LM4673TMBD - Class-D Audio Power Amplifier
  • LM4675 - Class D Audio Power Amplifier
  • LM46000 - 0.5-A Synchronous Step-Down Voltage Converter

Full PDF Text Transcription

Click to expand full text
LM4674A www.ti.com SNAS366A – SEPTEMBER 2006 – REVISED MAY 2013 LM4674A Filterless 2.5W Stereo Class D Audio Power Amplifier Check for Samples: LM4674A FEATURES 1 •2 Output Short Circuit Protection • Stereo Class D Operation • No Output Filter Required • Logic Selectable Gain • Independent Shutdown Control • Minimum External Components • Click and Pop Suppression • Micro-Power Shutdown • Available in Space-Saving 2mm x 2mm x 0.6mm DSBGA Package APPLICATIONS • Mobile Phones • PDAs • Laptops KEY SPECIFICATIONS • Efficiency at 3.6V, 100mW into 8Ω 80% (typ) • Efficiency at 3.6V, 500mW into 8Ω 85% (typ) • Efficiency at 5V, 1W into 8Ω 85% (typ) • Quiescent Power Supply Current at 3.6V Supply 4mA • Power Output at VDD = 5V, RL = 4Ω, THD ≤ 10% 2.
Published: |