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LM4951 - Wide Voltage Range 1.8 Watt Audio Amplifier

General Description

The LM4951 is an audio power amplifier primarily designed for demanding applications in Portable Handheld devices.

It is capable of delivering 1.8W mono BTL to an 8Ω load, continuous average power, with less than 1% distortion (THD+N) from a 7.5VDC power supply.

Key Features

  • 1.
  • 2 Click and Pop Circuitry Eliminates Noise during Turn-On and Turn-Off Transitions.
  • Low Current, Active-Low Shutdown Mode.
  • Low Quiescent Current.
  • Thermal Shutdown Protection.
  • Unity-Gain Stable.
  • External Gain Configuration Capability.

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📁 Similar Datasheet

Part Number Description Manufacturer
LM4951 Wide Voltage Range 1.8 Watt Audio Amplifier National Semiconductor
LM4951A Wide Voltage Range 1.8 Watt Audio Amplifier National Semiconductor
LM4950 7.5W Mono-BTL or 3.1W Stereo Audio Power Amplifier National Semiconductor
LM4952 3.1W Stereo-SE Audio Power Amplifier National Semiconductor
LM4953 Ground-Referenced Ultra Low Noise / Ceramic Speaker Driver National Semiconductor

Other Datasheets by Texas Instruments

Part Number Description
LM4951A 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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LM4951 www.ti.com SNAS244N – AUGUST 2004 – REVISED MAY 2013 LM4951 Wide Voltage Range 1.8 Watt Audio Amplifier Check for Samples: LM4951 FEATURES 1 •2 Click and Pop Circuitry Eliminates Noise during Turn-On and Turn-Off Transitions • Low Current, Active-Low Shutdown Mode • Low Quiescent Current • Thermal Shutdown Protection • Unity-Gain Stable • External Gain Configuration Capability APPLICATIONS • Portable Handheld Devices up to 9V • Cell Phone • PDA KEY SPECIFICATIONS • Wide Voltage Range: 2.7V to 9 V • 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.