LM4811MM

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LM4811MM

+Nomenclature

Audio Amplifiers

  • FabricantTexas Instruments

  • Pièce fabricant #LM4811MM

  • En stock23387

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Spécifications

Attribut Valeur
Packaging MouseReel
Standard Pack Qty 1000

Présentation

Description

The LM4811MM is a stereo headphone amplifier integrated circuit designed by Texas Instruments. It is part of the LM4811 series, commonly used in portable audio applications due to its efficient design and low power consumption. The device operates on a single supply voltage, typically in the range of 2.7V to 5.5V, making it suitable for battery-powered devices.
Key features include a low Total Harmonic Distortion (THD) which ensures high-quality audio output, and a high Signal-to-Noise Ratio (SNR) which minimizes background noise. The LM4811MM is also equipped with a built-in shutdown function to save power when not in use. Its compact package makes it ideal for space-constrained applications.
The amplifier supports a bridge-tied load (BTL) configuration, which effectively doubles the output power compared to single-ended configurations. This makes it capable of driving headphones with adequate volume and clarity. Overall, the LM4811MM is a reliable choice for enhancing audio performance in portable electronics.

Equivalent

The LM4811MM is a dual audio power amplifier. Equivalent products include:
1. TPA6111A2: A similar stereo headphone amplifier from Texas Instruments.
2. MAX9722: A stereo headphone amplifier from Maxim Integrated.
3. NJM2073: A dual audio power amplifier from New Japan Radio Co., Ltd.
These alternatives may vary slightly in specifications, so it's important to compare features and requirements for compatibility with your specific application.

Features

The LM4811MM is a stereo headphone amplifier known for its compactness and efficiency. Key features include:
1. Two-Channel Operation: It supports stereo output for high-quality sound.
2. Output Power: Delivers up to 105mW per channel into 16-ohm loads, suitable for driving headphones.
3. Low Distortion: Offers low total harmonic distortion (THD) for clear audio playback.
4. Shutdown Functionality: Includes a shutdown mode to reduce power consumption when not in use.
5. Low Quiescent Current: Energy-efficient operation with a low quiescent current.
6. Wide Voltage Range: Operates over a broad supply voltage range, typically from 2V to 5.5V.
7. Surface-Mount Package: Available in a mini small outline package (MSOP), ideal for space-constrained applications.
8. Thermal Protection: Equipped with thermal shutdown protection to prevent overheating.
9. High Signal-to-Noise Ratio: Ensures minimal noise interference for better sound quality.
These features make the LM4811MM suitable for portable audio applications like MP3 players, smartphones, and other personal audio devices.

Pinout

The LM4811MM is a Boomer audio power amplifier designed primarily for portable communication device applications. It is housed in an 8-pin Mini Small Outline Package (MSOP). The pin functions are as follows:
1. VDD: Power supply input.
2. BYPASS: Bypass capacitor pin to reduce noise.
3. IN-: Inverting input of the amplifier.
4. IN+: Non-inverting input of the amplifier.
5. VOUTA: Output A, audio signal output.
6. VOUTB: Output B, audio signal output.
7. SHUTDOWN: Places the amplifier in shutdown mode to reduce power consumption.
8. GND: Ground connection.
The LM4811MM is used to drive speakers or headphones and is capable of delivering high-quality audio output with low distortion and minimum external components. Its features make it suitable for battery-powered devices.

Manufacturer

The LM4811MM is a product manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and produces a wide range of electronic components, including integrated circuits for various applications such as industrial, automotive, personal electronics, and communications equipment. TI is known for its innovation and leadership in the semiconductor industry, providing both analog and embedded processing products. The company supports the advancement of technology by enabling efficient and effective design solutions for engineers and developers around the world.

Application

The LM4811MM is a Boomer audio power amplifier primarily used in various audio applications. Its compact size and efficiency make it suitable for portable devices, such as smartphones, tablets, and MP3 players. It is also used in consumer electronics like televisions, docking stations, and portable speakers. The amplifier provides stereo output and is often employed in systems requiring low power consumption and enhanced audio quality. Additionally, its features, such as low distortion and shutdown modes, make it ideal for battery-powered devices where power management is crucial.

Package

The LM4811MM is typically offered in an 8-pin Mini Small Outline Package (MSOP). This package is compact, making it suitable for portable and space-constrained applications.