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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

  • a low-power consumption active-low shutdown mode. Additionally, the LM4951 features an internal thermal shutdown protection mechanism. The LM4951 contains advanced pop & click circuitry that eliminates noises which would otherwise occur during turn-on and turn-off transitions. The LM4951 is unity-gain stable and can be configured by external gain-setting resistors. Key Specifications j Wide Voltage Range j Quiescent Power Supply Current 2.7V to 9V 2.5mA (typ) 1.8W (typ) 0.01µA (typ) 25mS (typ).

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📁 Similar Datasheet

Part Number Description Manufacturer
LM4951 Wide Voltage Range 1.8 Watt Audio Amplifier Texas Instruments
LM4951A Wide Voltage Range 1.8 Watt Audio Amplifier Texas Instruments
LM4950 7.5W Mono-BTL or 3.1W Stereo Audio Power Amplifier Texas Instruments
LM4952 3.1W Stereo-SE Audio Power Amplifier Texas Instruments
LM4954 High Voltage 3 Watt Audio Power Amplifier Texas Instruments

Other Datasheets by National Semiconductor (now 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
LM4953 Ground-Referenced Ultra Low Noise / Ceramic Speaker Driver
LM4954 HIgh Voltage 3 Watt Audio Power Amplifier

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November 2005 www.DataSheet4U.com LM4951 Wide Voltage Range 1.8 Watt Audio Amplifier 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. Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM4951 does not require bootstrap capacitors, or snubber circuits. The LM4951 features a low-power consumption active-low shutdown mode. Additionally, the LM4951 features an internal thermal shutdown protection mechanism.