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LM4667 - Filterless High Efficiency 1.3W Switching Audio Amplifier

General Description

The LM4667 is a fully integrated single-supply high efficiency switching audio amplifier.

Key Features

  • 1.
  • 2 No Output Filter Required for Inductive Transducers.
  • Selectable Gain of 6dB or 12dB.
  • Very Fast Turn on Time: 5ms (typ).
  • Minimum External Components.
  • "Click and Pop" Suppression Circuitry.
  • Micro-Power Shutdown Mode.
  • Short Circuit Protection.
  • Space-Saving DSBGA and VSSOP Packages KEY.

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Datasheet Details

Part number LM4667
Manufacturer Texas Instruments
File Size 2.17 MB
Description Filterless High Efficiency 1.3W Switching Audio Amplifier
Datasheet download datasheet LM4667 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
LM4667, LM4667MMBD www.ti.com SNAS165C – SEPTEMBER 2003 – REVISED MAY 2013 LM4667 Filterless High Efficiency 1.3W Switching Audio Amplifier Check for Samples: LM4667, LM4667MMBD FEATURES 1 •2 No Output Filter Required for Inductive Transducers • Selectable Gain of 6dB or 12dB • Very Fast Turn on Time: 5ms (typ) • Minimum External Components • "Click and Pop" Suppression Circuitry • Micro-Power Shutdown Mode • Short Circuit Protection • Space-Saving DSBGA and VSSOP Packages KEY SPECIFICATIONS • Efficiency at 3V, 100mW into 8Ω Transducer 74% (typ) • Efficiency at 3V, 450mW into 8Ω Transducer 84% (typ) • Efficiency at 5V, 1W into 8Ω Transducer 86% (typ) • Total Quiescent Power Supply Current: 3.5mA (typ) • Total Shutdown Power Supply Current: 0.01μA (typ) • Single Supply Range: 2.