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LM4853 - Power Amplifier

General Description

The LM4853 is an audio power amplifier capable of delivering 1.5W (typ) of continuous average power into a mono 4Ω bridged-tied load (BTL) with 1% THD+N or 95mW per channel of continuous average power into stereo 32Ω single-ended (SE) loads with 1% THD+N, using a 5V power supply.

The LM4853 can automatically switch between mono BTL and stereo SE modes utilizing a headphone sense pin.

It is ideal for any system that provides both a monaural speaker output and a stereo line or headphone output Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components.

Overview

LM4853 www.ti.com SNAS155E – JANUARY 2002 – REVISED MAY 2013 LM4853 Mono 1.

Key Features

  • 1.
  • 2 Mono 1.5W BTL or Stereo 300mW Output.
  • Headphone Sense.
  • “Click and Pop” Suppression Circuitry.
  • No Bootstrap Capacitors Required.
  • Thermal Shutdown Protection.
  • Unity-Gain Stable.
  • Available in Space-Saving VSSOP and WSON Packaging.