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LM4670 - Filterless High Efficiency 3W Switching Audio Amplifier

Description

The LM4670 is a fully integrated single-supply high efficiency switching audio amplifier.

Features

  • 1.
  • 23 No Output Filter Required for Inductive Loads.
  • Externally Configurable Gain.
  • Very Fast Turn on Time: 1.35ms (Typ).
  • Minimum External Components.
  • "Click and Pop" Suppression Circuitry.
  • Micro-Power Shutdown Mode.
  • Short Circuit Protection.
  • Available in Space-Saving DSBGA and WSON Packages.

📥 Download Datasheet

Datasheet Details

Part number LM4670
Manufacturer Texas Instruments
File Size 1.92 MB
Description Filterless High Efficiency 3W Switching Audio Amplifier
Datasheet download datasheet LM4670 Datasheet

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Full PDF Text Transcription

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LM4670 www.ti.com SNAS240C – DECEMBER 2004 – REVISED MAY 2013 LM4670 Boomer™ Audio Power Amplifier Series Filterless High Efficiency 3W Switching Audio Amplifier Check for Samples: LM4670 FEATURES 1 •23 No Output Filter Required for Inductive Loads • Externally Configurable Gain • Very Fast Turn on Time: 1.35ms (Typ) • Minimum External Components • "Click and Pop" Suppression Circuitry • Micro-Power Shutdown Mode • Short Circuit Protection • Available in Space-Saving DSBGA and WSON Packages APPLICATIONS • Mobile Phones • PDAs • Portable Electronic Devices KEY SPECIFICATIONS • Efficiency at 3.6V, 100mW into 8Ω Speaker, 77% (Typ) • Efficiency at 3.6V, 600mW into 8Ω Speaker, 88% (Typ) • Efficiency at 5V, 1W into 8Ω Speaker, 87% (Typ) • Quiescent Current, 3.6V Supply, 4.
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