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LM4951A - Wide Voltage Range 1.8 Watt Audio Amplifier

General Description

The LM4951A is an audio power amplifier designed for applications with supply voltages ranging from 2.7V up to 9V.

The LM4951A is capable of delivering 1.8W continuous average power with less than 1% THD+N into a bridge connected 8Ω load when operating from a 7.5VDC power supply.

Key Features

  • 1.
  • 23 Pop & Click Circuitry Eliminates Noise During Turn-On and Turn-Off Transitions.
  • Wide Supply Voltage Range: 2.7V to 9V.
  • Low Current, Active-Low Shutdown Mode.
  • Low Quiescent Current.
  • Thermal Shutdown Protection.
  • Short Circuit Protection.
  • Unity-Gain Stable.
  • External Gain Configuration Capability.

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📁 Similar Datasheet

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Other Datasheets by Texas Instruments

Part Number Description
LM4951 Wide Voltage Range 1.8 Watt Audio Amplifier
LM4950 7.5W Mono-BTL or 3.1W Stereo Audio Power Amplifier
LM4952 3.1W Stereo-SE Audio Power Amplifier
LM4954 High Voltage 3 Watt Audio Power Amplifier
LM4900 Audio Power Amplifier

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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LM4951A www.ti.com SNAS453C – AUGUST 2008 – REVISED APRIL 2013 LM4951A Wide Voltage Range 1.8 Watt Audio Amplifier With Short Circuit Protection Check for Samples: LM4951A FEATURES 1 •23 Pop & Click Circuitry Eliminates Noise During Turn-On and Turn-Off Transitions • Wide Supply Voltage Range: 2.7V to 9V • Low Current, Active-Low Shutdown Mode • Low Quiescent Current • Thermal Shutdown Protection • Short Circuit Protection • Unity-Gain Stable • External Gain Configuration Capability APPLICATIONS • Portable Devices • Cell Phones • Laptop Computers • Computer Speaker Systems • MP3 Player Speakers KEY SPECIFICATIONS • Wide Voltage Range 2.7V to 9V • Quiescent Power Supply Current (VDD = 7.5V) 2.5mA (typ) • Power Output BTL at 7.5V, 1% THD 1.8 W (typ) • Shutdown Current 0.