LM4861M/NOPB

Product Overview

Category

LM4861M/NOPB belongs to the category of audio power amplifiers.

Use

It is used to amplify audio signals and drive speakers in various electronic devices such as mobile phones, tablets, portable media players, and other consumer electronics.

Characteristics

• High efficiency
• Low quiescent current
• Low distortion
• Thermal shutdown protection

Package

The LM4861M/NOPB comes in a small outline integrated circuit (SOIC) package.

Essence

The essence of LM4861M/NOPB lies in its ability to provide high-quality audio amplification in a compact and efficient package.

Packaging/Quantity

The LM4861M/NOPB is typically available in reels with a quantity of 2500 units per reel.

Specifications

• Power Supply Range: 2.7V to 5.5V
• Output Power: 1.1W at 5V, 10% THD+N, 8Ω Load
• Shutdown Current: 0.6μA (typical)
• Quiescent Current: 4mA (typical)

Detailed Pin Configuration

The LM4861M/NOPB has the following pin configuration: 1. VDD (Power supply input) 2. SHUTDOWN (Shutdown control input) 3. IN- (Negative audio input) 4. IN+ (Positive audio input) 5. GND (Ground) 6. OUT (Audio output)

Functional Features

• Single-ended or differential input
• Low external component count
• Superior click and pop suppression

Advantages and Disadvantages

Advantages

• Small form factor
• Low power consumption
• High efficiency
• Excellent audio quality

Disadvantages

• Limited output power compared to higher wattage amplifiers
• Requires heat dissipation considerations for prolonged high-power operation

Working Principles

The LM4861M/NOPB operates by amplifying the input audio signal using internal circuitry and then driving the output to the connected speaker. It utilizes low quiescent current and high-efficiency design to minimize power consumption while delivering clear and powerful audio output.

Detailed Application Field Plans

The LM4861M/NOPB is well-suited for use in portable electronic devices where space and power efficiency are crucial. It can be integrated into smartphones, tablets, portable speakers, and other battery-powered consumer electronics to provide high-quality audio amplification.

Detailed and Complete Alternative Models

Some alternative models to LM4861M/NOPB include: - TPA2012D2 from Texas Instruments - MAX98306 from Maxim Integrated - NJU7089 from New Japan Radio

In conclusion, the LM4861M/NOPB is a versatile audio power amplifier that offers high efficiency, low distortion, and compact packaging, making it an ideal choice for various portable electronic devices.

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