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LM4871 - 3W Audio Power Amplifier

Description

The LM4871 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).

Features

  • 1.
  • 2 No Output Coupling Capacitors, Bootstrap Capacitors, or Snubber Circuits Required.
  • Unity-gain Stable.
  • WSON, VSSOP, SOIC, or PDIP Packaging.
  • External Gain Configuration Capability.
  • Pin Compatible with the LM4861.

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Full PDF Text Transcription

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LM4871 www.ti.com SNAS002F – FEBRUARY 2000 – REVISED MAY 2013 LM4871 3W Audio Power Amplifier with Shutdown Mode Check for Samples: LM4871 FEATURES 1 •2 No Output Coupling Capacitors, Bootstrap Capacitors, or Snubber Circuits Required • Unity-gain Stable • WSON, VSSOP, SOIC, or PDIP Packaging • External Gain Configuration Capability • Pin Compatible with the LM4861 APPLICATIONS • Portable Computers • Desktop Computers • Low Voltage Audio Systems KEY SPECIFICATIONS • PO at 10% THD+N, 1kHz – LM4871LD: 3Ω , 4Ω Loads; 3W (typ), 2.5 W (typ) – All other LM4871 Packages: 8Ω load 1.5 W (typ) • Shutdown Current 0.6µA (typ) • Supply Voltage Range 2.0V to 5.5 V • THD at 1kHz at 1W Continuous Average Output Power into 8Ω 0.
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