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LM4871MX The Texas Instruments LM4871MX is a 3W mono Class-AB audio amplifier with analog input. It operates from a 2V to 5.5V supply and has a shutdown mode for power conservation.
Mfr Part #:

LM4871MX

Available from 4 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments LM4871MX is a 3W mono Class-AB audio amplifier with analog input. It operates from a 2V to 5.5V supply and has a shutdown mode for power conservation.
✓ Total Stock: 1,588 pcs

LM4871MX Available from 4 distributors

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LM4871MX Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Control Interface
Input Type
Load
Mounting Type
Operating Temperature
Package / Case
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LM4871MX Description

Short technical summary and product information.

The Texas Instruments LM4871MX is a versatile 3W mono Class-AB audio amplifier designed for high fidelity audio output in portable applications. It accepts analog input and features a hardware control interface. The amplifier operates within a wide supply voltage range of 2.0V to 5.5V, with a power stage supply also ranging from 2V to 5.5V.

 

Key electrical characteristics include an output power of up to 3W into a 3Ω load at 10% THD+N when powered by 5V. It also delivers 1.5W typical into an 8Ω load. The device boasts a low shutdown current of 0.6µA typical, making it suitable for power-sensitive applications. Total Harmonic Distortion plus Noise (THD + N) is 0.13% at 1kHz, and THD at 1kHz into 8Ω at 1W continuous average output power is a maximum of 0.5%.

 

The LM4871MX is unity-gain stable and requires no external output coupling capacitors, bootstrap capacitors, or snubber circuits. It is available in WSON, VSSOP, and SOIC packages, all supporting surface mount installation. The operating temperature range is -40°C to 85°C.

LM4871MX Quick Information

Product Type: Audio Amplifier
Canonical Name: LM4871MX 3W Mono Class-AB Audio Amplifier
Subcategory: General-purpose audio amplifiers

LM4871MX Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

LM4871MX Features

  • 3W mono Class-AB audio amplifier
  • Analog input with hardware control
  • 2.0V to 5.5V supply voltage range
  • Low 0.6µA typical shutdown current
  • Available in WSON, VSSOP, SOIC packages

LM4871MX Applications

  • Ideal for portable audio devices
  • Suitable for battery-powered systems
  • Used in consumer electronics
  • Enables high-fidelity audio output

LM4871MX FAQs

7 frequently asked questions generated from this part’s specifications.
What is the output power of the LM4871MX?

The LM4871MX can deliver up to 3W typical into 3Ω and 4Ω loads at 10% THD+N, 1kHz. It provides 2.5W typical into the same loads and 1.5W typical into an 8Ω load.

What is the supply voltage range for the LM4871MX?

The LM4871MX operates with an analog supply voltage range of 2.0V to 5.5V and a power stage supply range of 2V to 5.5V.

What is the operating temperature range of the LM4871MX?

The operating temperature range for the LM4871MX is -40°C to 85°C.

What type of input does the LM4871MX audio amplifier use?

The LM4871MX features an analog input type.

What is the input architecture of the LM4871MX?

The LM4871MX utilizes a Class-AB input architecture.

How many speaker channels does the LM4871MX support?

The LM4871MX supports a maximum of mono speaker channels.

What is the shutdown current for the LM4871MX?

The shutdown current for the LM4871MX is typically 0.6µA.

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