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Name: LM4780TABD
Brand: National Semiconductor
SKU: LM4780TABD
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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National Semiconductor LM4780TABD

Part No.:: LM4780TABD

Manufacturer:: National Semiconductor

Package:

Datasheet:

Description:: LM4780 - STEREO AUDIO POWER AMPL

In Stock:: 2841

Quantity:: Add To Cart

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LM4780TABD Specifications

Packaging:
Bulk
Series:
Overture™
ProductStatus:
Active
AmplifierType:
Class AB
OutputType:
2-Channel (Stereo)
MaxOutputPowerxChannels@Load:
60W x 2 @ 8Ohm
Voltage-Supply:
20V ~ 84V, ±10V ~ 42V
BoardType:
Fully Populated
UtilizedIC/Part:
LM4780

LM4780TABD this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including LM4780TABD 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 LM4780TABD 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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LM4780TABD information

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LM4780TABD Typical application Circuitry

LM4780TABD is a dual audio power amplifier chip designed for high-performance audio applications, offering excellent audio quality and power efficiency.

Application Scenario:

In home audio systems, LM4780TABD can be utilized to drive stereo speakers with high fidelity, making it ideal for amplifying audio signals from various sources such as CD players, MP3 players, or computers.

Circuit Design:

To design a stereo audio amplifier using LM4780TABD, follow these steps:

1. Power Supply Connection:

Connect the power supply to pins 8 (V+) and 4 (V-) of LM4780TABD to provide the required supply voltage for the amplifier. Ensure proper decoupling capacitors are used for stability.

2. Input Signal Connection:

Connect the audio input signal source, such as a preamplifier or audio source, to pins 2 (IN-) and 3 (IN+) of each amplifier channel. Use coupling capacitors to block DC offset.

3. Feedback and Gain Setting:

Connect the feedback network components, such as resistors and capacitors, between the output (pins 5 and 6 for one channel, pins 11 and 12 for the other channel) and the inverting input (pins 2 and 7 for one channel, pins 10 and 13 for the other channel) of each amplifier. Set the gain according to the desired amplification level.

4. Output Connection:

Connect the load, typically a speaker, between the output pins 5 and 6 for one channel, and pins 11 and 12 for the other channel. Ensure proper load impedance matching for optimal performance.

5. Mute and Standby Control:

Utilize pins 1 and 14 for each channel to control the mute and standby modes of the amplifier. Connect these pins to logic control signals for enabling/disabling or standby operation.

Considerations:

When designing the circuit, it's crucial to consider:

- Thermal Management: Implement adequate heat sinking for LM4780TABD to dissipate heat generated during operation and prevent overheating.

- PCB Layout: Design the PCB layout carefully to minimize noise, interference, and ground loops, ensuring optimal audio performance.

- Output Protection: Incorporate protection circuits such as overcurrent protection and short-circuit protection to safeguard the amplifier and connected speakers.

- Input Signal Integrity: Shield sensitive input signal traces from interference and ensure proper grounding to maintain signal integrity and minimize noise.

- Power Supply Regulation: Use stable and clean power supplies with proper regulation to prevent voltage fluctuations and ensure consistent amplifier performance.

LM4780TABD FAQ

1. How to order LM4780TABD on icwhale.com?

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2. How does icwhale.com guarantee that LM4780TABD is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the LM4780TABD. All suppliers must pass our qualification reviews before they can publish their products including LM4780TABD on icwhale.com; we pay more attention to the channels and quality of LM4780TABD products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.

3. Are the LM4780TABD price and inventory displayed accurate?

The price and inventory of LM4780TABD fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.

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5. How is the shipping arranged?

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Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.

6. What is the process for return or replacement of LM4780TABD?

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 LM4780TABD we delivered, we will accept the replacement or return of the LM4780TABD 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 LM4780TABD.

(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