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LM4991 Datasheet 3w Audio Power Amplifier

Manufacturer: Texas Instruments

Overview: LM4991 www.ti.com SNAS217A – MAY 2004 – REVISED APRIL 2013 LM4991 3W Audio Power Amplifier with Shutdown Mode Check for Samples:.

General Description

The LM4991 is a mono bridged audio power amplifier capable of delivering 3W of continuous average power into a 3Ω load with less than 10% THD when powered by a 5V power supply (see Note below).

To conserve power in portable applications, the LM4991's micropower shutdown mode (ISD = 0.1µA, typ) is activated when VDD is applied to the SHUTDOWN pin.

Boomer audio power amplifiers are designed specifically to provide high power, high fidelity audio output.

Key Features

  • 1.
  • 2 Available in Space-Saving WSON and SOIC Packages.
  • Ultra Low Current Shutdown Mode.
  • Can Drive Capacitive Loads up to 500pF.
  • Improved Click and Pop Circuitry Reduces Noises During Turn-On and Turn-Off Transitions.
  • 2.2 - 5.5V Operation.
  • No Output Coupling Capacitors, Snubber Networks, Bootstrap Capacitors or GainSetting Resistors Required.
  • Unity-Gain Stable.

Similar Datasheet

Brand Logo Part Number Description Manufacturer
National Semiconductor Logo LM4991 3W Audio Power Amplifier National Semiconductor

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