LM4916MM/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Audio Amplifier

Characteristics: - High-performance audio amplifier - Low power consumption - Small package size - Wide supply voltage range - Thermal shutdown protection

Package: Miniature 8-Pin MSOP (Micro Small Outline Package)

Essence: The LM4916MM/NOPB is a high-performance audio amplifier IC designed for various audio applications, including portable devices, smartphones, tablets, and multimedia systems.

Packaging/Quantity: The LM4916MM/NOPB is available in tape and reel packaging. Each reel contains 2500 units.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Output Power: 1.3W (typical) into 8Ω at 5V
• Total Harmonic Distortion + Noise (THD+N): 0.1% (typical) at 1kHz, 1.2W into 8Ω
• Shutdown Current: 0.01μA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM4916MM/NOPB has the following pin configuration:

___________ | | IN+ |1 8| VDD IN- |2 7| SHUTDOWN GND |3 6| OUT BYP |4 5| IN |___________|

Functional Features

1. High-Quality Audio Amplification: The LM4916MM/NOPB provides high-quality audio amplification with low distortion and noise.
2. Wide Supply Voltage Range: It operates within a wide supply voltage range of 2.7V to 5.5V, making it suitable for various applications.
3. Thermal Shutdown Protection: The IC includes thermal shutdown protection, which prevents damage due to excessive heat.
4. Low Power Consumption: The LM4916MM/NOPB is designed to consume low power, ensuring efficient use of energy.

Advantages and Disadvantages

Advantages: - High-performance audio amplification - Wide supply voltage range - Small package size - Low power consumption - Thermal shutdown protection

Disadvantages: - Limited output power compared to higher wattage amplifiers - Not suitable for high-power audio applications

Working Principles

The LM4916MM/NOPB is a class AB audio amplifier that amplifies the input audio signal while maintaining low distortion and noise levels. It utilizes a combination of internal circuitry, including differential inputs, gain stages, and output drivers, to achieve high-quality audio amplification.

When an audio signal is applied to the IN pin, the amplifier amplifies the signal and outputs it through the OUT pin. The BYP pin allows bypassing the internal gain stage, enabling direct connection of an external amplifier if desired.

Detailed Application Field Plans

The LM4916MM/NOPB is widely used in various audio applications, including but not limited to: 1. Portable devices such as MP3 players, portable speakers, and headphones. 2. Smartphones and tablets for enhancing audio quality. 3. Multimedia systems, including laptops, desktop computers, and gaming consoles. 4. Automotive audio systems for improved sound reproduction.

Detailed and Complete Alternative Models

1. LM4863: Dual 2.2W Audio Amplifier with Shutdown Mode
2. TPA3110D2: 15-W Stereo Class-D Audio Power Amplifier
3. MAX9744: 20W Stereo Class D Audio Power Amplifier

These alternative models offer similar functionality and can be considered as alternatives to the LM4916MM/NOPB based on specific requirements and application needs.

In conclusion, the LM4916MM/NOPB is a high-performance audio amplifier IC suitable for various audio applications. Its small package size, low power consumption, and wide supply voltage range make it an ideal choice for portable devices, smartphones, tablets, and multimedia systems. While it has limitations in terms of output power, it offers high-quality audio amplification with low distortion and noise levels.