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LM4901 Datasheet 1.6 Watt Audio Power Amplifier

Manufacturer: Texas Instruments

Overview: LM4901 www.ti.com SNAS139F – DECEMBER 2001 – REVISED DECEMBER 2001 LM4901 1.

General Description

The LM4901 is an audio power amplifier primarily designed for demanding applications in mobile phones and other portable communication device applications.

It is capable of delivering 1 watt of continuous average power to an 8Ω BTL load and 1.6 watts of continuous avearge power to a 4Ω BTL load with less than 1% distortion (THD+N) from a 5VDC power supply.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components.

Key Features

  • 1.
  • 2 Available in Space-Saving Packages: WSON and VSSOP.
  • Ultra Low Current Shutdown Mode.
  • BTL Output can Drive Capacitive Loads.
  • Improved Pop & Click Circuitry Eliminates Noise During Turn-On and Turn-Off Transitions.
  • 2.0 - 5.5V Operation.
  • No Output Coupling Capacitors, Snubber Networks or Bootstrap Capacitors Required.
  • Unity-Gain Stable.
  • External Gain Configuration Capability.
  • User Selectable Shutdown High or Low lo.

LM4901 Distributor