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TPA4861 - 1-W MONO AUDIO POWER AMPLIFIER

Description

The TPA4861 is a bridge-tied load (BTL) audio power amplifier capable of delivering 1 W of continuous average power into an 8-Ω load at 0.2% THD+N from a 5-V power supply in voiceband frequencies (f < 5 kHz).

Features

  • 1-W BTL Output (5 V, 0.11 % THD+N).
  • 3.3-V and 5-V Operation.
  • No Output Coupling Capacitors Required.
  • Shutdown Control (IDD = 0.6 µA).
  • Uncompensated Gains of 2 to 20 (BTL Mode).
  • Surface-Mount Packaging.
  • Thermal and Short-Circuit Protection.
  • High Supply Ripple Rejection Ratio (56 dB at 1 kHz).
  • LM4861 Drop-In Compatible D.

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Full PDF Text Transcription

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www.ti.com TPA4861 SLOS163C – SEPTEMBER 1996 – REVISED JUNE 2004 1-W MONO AUDIO POWER AMPLIFIER FEATURES • 1-W BTL Output (5 V, 0.11 % THD+N) • 3.3-V and 5-V Operation • No Output Coupling Capacitors Required • Shutdown Control (IDD = 0.6 µA) • Uncompensated Gains of 2 to 20 (BTL Mode) • Surface-Mount Packaging • Thermal and Short-Circuit Protection • High Supply Ripple Rejection Ratio (56 dB at 1 kHz) • LM4861 Drop-In Compatible D PACKAGE (TOP VIEW) SHUTDOWN BYPASS IN+ IN– 1 2 3 4 8 7 6 5 VO2 GND VDD VO1 DESCRIPTION The TPA4861 is a bridge-tied load (BTL) audio power amplifier capable of delivering 1 W of continuous average power into an 8-Ω load at 0.2% THD+N from a 5-V power supply in voiceband frequencies (f < 5 kHz).
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