LM4681SQX/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Audio Power Amplifier

Characteristics: - High-performance audio amplifier - Single supply operation - Low distortion and noise - Wide voltage range - Thermal shutdown protection

Package: SQ (PowerPAD™)

Essence: The LM4681SQX/NOPB is a high-performance audio power amplifier IC designed for use in various audio applications.

Packaging/Quantity: The LM4681SQX/NOPB is available in a PowerPAD™ package and is typically sold in reels of 2500 units.

Specifications

• Supply Voltage Range: 4.5V to 26V
• Output Power: Up to 30W per channel
• Total Harmonic Distortion + Noise (THD+N): 0.03%
• Signal-to-Noise Ratio (SNR): 105dB
• Efficiency: 90%
• Operating Temperature Range: -40°C to 85°C

Pin Configuration

The LM4681SQX/NOPB has a 32-pin PowerPAD™ package with the following pin configuration:

Pin Number | Pin Name | Description -----------|----------|------------ 1 | INL | Left Channel Input 2 | INR | Right Channel Input 3 | GND | Ground 4 | VCC | Positive Power Supply 5 | BYP | Bypass Capacitor Connection 6 | MUTE | Mute Control Input 7 | SD | Shutdown Control Input 8 | PVCC | Power Supply for Gate Drive 9-16 | NC | No Connection 17 | OUTL | Left Channel Output 18 | OUTR | Right Channel Output 19-32 | NC | No Connection

Functional Features

• High-quality audio amplification for stereo applications
• Single supply operation simplifies design and reduces component count
• Low distortion and noise ensure excellent audio reproduction
• Wide voltage range allows flexibility in power supply selection
• Thermal shutdown protection prevents damage due to excessive temperature

Advantages and Disadvantages

Advantages: - High-performance audio amplification - Wide operating voltage range - Low distortion and noise - Thermal shutdown protection

Disadvantages: - Limited pin configuration options - Requires external bypass capacitor for optimal performance

Working Principles

The LM4681SQX/NOPB is a class AB audio power amplifier that utilizes a single supply voltage. It amplifies the audio input signals received from the left and right channels and delivers amplified output signals to the respective speakers. The amplifier operates with low distortion and noise, ensuring high-quality audio reproduction.

Detailed Application Field Plans

The LM4681SQX/NOPB can be used in various audio applications, including: - Home theater systems - Car audio systems - Portable audio devices - Multimedia speakers - Professional audio equipment

Detailed and Complete Alternative Models

Some alternative models to the LM4681SQX/NOPB include: - TPA3116D2 - STA540 - TDA7294 - MAX9744

These alternative models offer similar functionality and can be considered as replacements depending on specific requirements and design considerations.

In conclusion, the LM4681SQX/NOPB is a high-performance audio power amplifier IC suitable for a wide range of audio applications. Its features, such as low distortion, wide voltage range, and thermal shutdown protection, make it an excellent choice for audio amplification needs.