LM4651N/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: The LM4651N/NOPB is a high-performance audio power amplifier IC designed for use in audio systems. It is specifically designed to drive stereo speakers with high fidelity and low distortion.

Characteristics: - High-performance audio power amplifier - Low distortion - Stereo speaker driver - Suitable for audio systems

Package: The LM4651N/NOPB is available in a 15-pin TO-220 package, which provides excellent thermal performance and easy mounting on a heat sink.

Essence: The LM4651N/NOPB is an essential component in audio systems, providing high-quality amplification for stereo speakers.

Packaging/Quantity: The LM4651N/NOPB is typically sold in reels or tubes, containing a quantity of 50 units per package.

Specifications

• Supply Voltage Range: 10V to 40V
• Output Power: 125W per channel
• Total Harmonic Distortion: 0.01% (typical)
• Signal-to-Noise Ratio: 100dB (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM4651N/NOPB has a total of 15 pins, each serving a specific function. The pin configuration is as follows:

1. Mute
2. Non-Inverting Input (Channel A)
3. Inverting Input (Channel A)
4. VCC (Positive Power Supply)
5. Output (Channel A)
6. Ground
7. Output (Channel B)
8. VCC (Positive Power Supply)
9. Inverting Input (Channel B)
10. Non-Inverting Input (Channel B)
11. Feedback (Channel B)
12. Feedback (Channel A)
13. Bootstrap
14. Standby
15. Thermal Pad

Functional Features

• High-quality audio amplification
• Low distortion for accurate sound reproduction
• Dual-channel design for stereo applications
• Mute function for convenient control
• Standby mode for power-saving operation
• Bootstrap circuitry for improved efficiency

Advantages and Disadvantages

Advantages: - High-performance audio amplification - Low distortion for accurate sound reproduction - Suitable for stereo applications - Convenient mute and standby functions - Improved efficiency with bootstrap circuitry

Disadvantages: - Requires external components for complete audio system integration - Limited output power compared to some other power amplifier ICs

Working Principles

The LM4651N/NOPB operates as a class AB audio power amplifier, utilizing a dual-channel design to drive stereo speakers. It accepts audio input signals and amplifies them to a level suitable for driving speakers. The amplifier circuitry ensures low distortion and high fidelity sound reproduction.

Detailed Application Field Plans

The LM4651N/NOPB is widely used in various audio systems, including: - Home theater systems - Hi-Fi audio systems - Car audio systems - Professional audio equipment - Multimedia speakers

Detailed and Complete Alternative Models

• LM3886: A high-performance audio power amplifier IC with similar specifications and features.
• TDA7294: A versatile audio power amplifier IC suitable for various applications.
• STA540: A dual-channel audio power amplifier IC with built-in protection features.

These alternative models offer similar functionality and can be considered as alternatives to the LM4651N/NOPB based on specific requirements and application needs.

In conclusion, the LM4651N/NOPB is a high-performance audio power amplifier IC designed for use in audio systems. With its low distortion, high fidelity sound reproduction, and dual-channel design, it provides an excellent solution for driving stereo speakers in various applications.