LM3876T/NOPB

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Power Amplifier
• Characteristics: High-performance, stereo audio amplifier
• Package: TO-220-11
• Essence: The LM3876T/NOPB is a high-performance audio power amplifier designed for stereo applications. It delivers excellent sound quality and can drive loads as low as 4 ohms.
• Packaging/Quantity: Available in tubes of 25 units or reels of 500 units.

Specifications

• Power Supply Voltage: ±20V to ±84V
• Output Power: 56W per channel (at 0.1% THD+N, RL = 8Ω)
• Total Harmonic Distortion + Noise: 0.03% (at 1kHz, 20W output power)
• Input Impedance: 22kΩ
• Shutdown Current: 2mA (typical)

Pin Configuration

The LM3876T/NOPB has the following pin configuration:

Pin 1: Non-Inverting Input (Channel A) Pin 2: Inverting Input (Channel A) Pin 3: Output (Channel A) Pin 4: V- (Negative Power Supply) Pin 5: GND (Ground) Pin 6: V+ (Positive Power Supply) Pin 7: Output (Channel B) Pin 8: Inverting Input (Channel B) Pin 9: Non-Inverting Input (Channel B) Pin 10: Mute Control Pin 11: Standby Control

Functional Features

• High-quality audio amplification for stereo applications
• Wide power supply voltage range allows flexibility in design
• Low distortion and noise for improved sound reproduction
• Protection features like thermal shutdown and overvoltage protection
• Mute and standby control for power management

Advantages and Disadvantages

Advantages: - High-performance audio amplification - Wide power supply voltage range - Low distortion and noise - Protection features for reliability - Power management options

Disadvantages: - Requires external components for a complete audio amplifier circuit - Limited output power compared to some other models

Working Principles

The LM3876T/NOPB operates as a class AB audio power amplifier. It uses a complementary push-pull configuration to amplify the input audio signal. The amplified signal is then delivered to the speakers or load connected to the output pins. The amplifier is designed to provide high-quality sound reproduction with low distortion and noise.

Detailed Application Field Plans

The LM3876T/NOPB can be used in various audio applications, including:

1. Home stereo systems
2. Professional audio equipment
3. Car audio systems
4. Musical instrument amplifiers
5. Public address systems

Its high-performance characteristics make it suitable for both consumer and professional audio applications.

Detailed and Complete Alternative Models

1. TDA7294 - Audio Power Amplifier IC
2. LM3886 - High-Performance Audio Amplifier IC
3. TPA3116D2 - Class D Audio Amplifier IC
4. STA540 - 4-channel Audio Amplifier IC
5. TDA2050 - Hi-Fi Audio Amplifier IC

These alternative models offer similar functionality and can be considered as alternatives to the LM3876T/NOPB depending on specific requirements and design considerations.

In conclusion, the LM3876T/NOPB is a high-performance audio power amplifier IC designed for stereo applications. Its wide power supply voltage range, low distortion, and protection features make it suitable for various audio applications. While it requires external components for a complete audio amplifier circuit, it offers excellent sound quality and reliability.