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Name: LM4871MX
Brand: National Semiconductor
SKU: LM4871MX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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National Semiconductor LM4871MX

Part No.:: LM4871MX

Manufacturer:: National Semiconductor

Package:: 8-SOIC

Datasheet:: LM4871MX.pdf

Description:: LM4871 BOOMER SERIES: 3W AUDIO A

In Stock:: 1800

Quantity:: Add To Cart

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LM4871MX Specifications

Packaging:
Bulk
Series:
Boomer®
ProductStatus:
Active
Type:
Class AB
OutputType:
1-Channel (Mono)
MaxOutputPowerxChannels@Load:
3W x 1 @ 3Ohm
Voltage-Supply:
2V ~ 5.5V
Features:
Shutdown, Thermal Protection
MountingType:
Surface Mount
OperatingTemperature:
-40°C ~ 85°C (TA)

LM4871MX this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including LM4871MX price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for LM4871MX to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

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LM4871MX information

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LM4871MX Typical application Circuitry

LM4871MX

The LM4871MX belongs to the LM4871 series of audio amplifiers, a line of integrated circuits known for their audio amplification capabilities, particularly in portable devices. The LM4871MX is a bridge-connected audio power amplifier that can typically provide 3W of continuous average power to an 8Ω load with less than 10% THD (Total Harmonic Distortion) when powered by a 5V power supply.

1. VDD Pin - Power Supply: The VDD pin is the power supply input for the LM4871MX. This pin has to be linked to the power source's positive side, which is usually a 5V supply. The power supply should be well regulated and filtered to prevent noise and distortion in the audio output.

2. GND Pin - Ground: The system ground should be linked to this pin. A solid ground connection is crucial for reducing noise and preventing oscillations in the audio amplifier.

3. IN+ and IN- Pins - Input Signal: The LM4871MX features differential inputs, IN+ and IN-, for the audio signal. These pins are where the audio input signal is applied. For a single-ended input, the IN- pin can be grounded, while the IN+ pin receives the audio signal.

4. BYP Pin - Bypass: The BYP pin is used for bypassing the internal gain-setting resistors with an external capacitor, allowing customization of the amplifier's gain. By putting a capacitor between this pin and GND, you can filter out noise from the power supply.

5. BO+ and BO- Pins - Bridge Output: The BO+ and BO- pins are the output pins of the amplifier. These pins connect directly to the speaker and drive it with the amplified signal. The bridge-connected configuration allows for higher power output without the need for an output coupling capacitor.

6. SHUTDOWN Pin: To turn on or off the amplifier, utilize this pin. Applying a low voltage (logic low) will put the amplifier into a low-power shutdown mode, while a high voltage (logic high) enables normal operation.

7. Decoupling Capacitors: It is advisable to use decoupling capacitors close to the power supply pin (VDD) to filter out noise and provide a stable power supply for the amplifier.

Incorporating the LM4871MX into an audio system requires careful attention to the power supply, input signal connections, and output connections to the speaker. Proper layout and grounding are essential to maximize the performance and minimize noise and distortion in the audio output.

In summary, the LM4871MX is a compact and efficient audio amplifier suitable for portable applications, demanding precise power supply management, input signal routing, and output connections to deliver high-quality audio performance.

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6. What is the process for return or replacement of LM4871MX?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the LM4871MX we delivered, we will accept the replacement or return of the LM4871MX only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of LM4871MX.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations