3W Audio Power Amplifier With Shutdown Mode

The LM4871 is a mono bridged Audio Power Amplifier capable of delivering 3W of continuous average power into a 3 load with less than 10% THD when powered by a 5V power supply . To conserve power in portable applications, the LM4871 's micropower shutdown mode (IQ = 0.6?A, typ) is activated when VDD is applied to the SHUTDOWN pin.
Boomer Audio Power Amplifiers are designed specifically to provide high power, high fidelity Audio output. They require few external components and operate on low supply voltages from 2.0V to 5.5V. Since the LM4871 does not require output coupling capacitors, bootstrap capacitors, or snubber networks, it is ideally suited for low-power portable systems that require minimum volume and weight.
Additional LM4871 features include thermal shutdown protection, unity-gain stability, and external gain set.
By National Semiconductor Corporation
Part Manufacturer Description Datasheet Samples
LM4871MMX/NOPB Texas Instruments Boomer Series: 3W Audio Amplifier with Shutdown Mode 8-VSSOP -40 to 85
LM4871LD/NOPB Texas Instruments Boomer Series: 3W Audio Amplifier with Shutdown Mode 8-WSON -40 to 85
LM4871M/NOPB Texas Instruments Boomer Series: 3W Audio Amplifier with Shutdown Mode 8-SOIC -40 to 85
LM4871MM/NOPB Texas Instruments Boomer Series: 3W Audio Amplifier with Shutdown Mode 8-VSSOP -40 to 85
LM4871M Texas Instruments Boomer Series: 3W Audio Amplifier with Shutdown Mode 8-SOIC -40 to 85
LM4871MX/NOPB Texas Instruments Boomer Series: 3W Audio Amplifier with Shutdown Mode 8-SOIC -40 to 85
LM4871LD Texas Instruments Boomer Series: 3W Audio Amplifier with Shutdown Mode 8-WSON -40 to 85
LM4871MX Texas Instruments Boomer Series: 3W Audio Amplifier with Shutdown Mode 8-SOIC -40 to 85
LM4871 's PackagesLM4871 's pdf datasheet
LM4871LD LLP
LM4871LDX LLP
LM4871M SOIC
LM4871MX SOIC
LM4871MM SOIC
LM4871MMX SOIC




LM4871 Pinout, Pinouts
LM4871 pinout,Pin out
This is one package pinout of LM4871,If you need more pinouts please download LM4871's pdf datasheet.

LM4871 Application circuits
LM4871 circuits
This is one application circuit of LM4871,If you need more circuits,please download LM4871's pdf datasheet.


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