LM3876TF/NOPB

Product Overview

Category

The LM3876TF/NOPB belongs to the category of integrated circuits (ICs) specifically designed for audio amplification.

Use

This product is primarily used in audio systems to amplify low-power audio signals and deliver high-quality sound output.

Characteristics

• High-performance audio amplifier IC
• Single-channel operation
• Wide frequency response range
• Low distortion and noise levels
• High power efficiency
• Compact package design

Package

The LM3876TF/NOPB is available in a TO-220-11 package, which provides excellent thermal dissipation properties.

Essence

The essence of the LM3876TF/NOPB lies in its ability to provide high-fidelity audio amplification with minimal distortion and noise.

Packaging/Quantity

This product is typically packaged in reels or tubes, containing a specific quantity of LM3876TF/NOPB ICs per package.

Specifications

• Maximum Power Output: 56W
• Supply Voltage Range: ±20V to ±84V
• Total Harmonic Distortion (THD): 0.03% (typical)
• Input Impedance: 22kΩ
• Operating Temperature Range: -40°C to +85°C
• Gain Bandwidth Product: 15MHz
• Output Noise Voltage: 90μV (typical)

Detailed Pin Configuration

The LM3876TF/NOPB features a 11-pin configuration as follows:

1. V- (Negative Power Supply)
2. IN- (Inverting Input)
3. IN+ (Non-Inverting Input)
4. V+ (Positive Power Supply)
5. BYPASS (Bypass Capacitor Connection)
6. GND (Ground)
7. OUT (Output)
8. COMP (Compensation Pin)
9. NC (No Connection)
10. NC (No Connection)
11. NC (No Connection)

Functional Features

• High voltage gain
• Short-circuit and thermal protection
• Soft-start circuitry for gradual power-up
• External compensation for stability optimization
• Wide supply voltage range for versatile applications

Advantages and Disadvantages

Advantages

• High-quality audio amplification
• Low distortion and noise levels
• Efficient power utilization
• Compact package design for space-saving installations
• Built-in protection mechanisms for enhanced reliability

Disadvantages

• Requires external compensation for optimal performance
• Limited to single-channel operation

Working Principles

The LM3876TF/NOPB operates as a class AB audio amplifier, utilizing a combination of voltage and current amplification stages. It takes the low-power audio input signal and amplifies it to a higher power level suitable for driving speakers or other audio output devices. The amplifier's internal circuitry ensures minimal distortion and noise, resulting in high-fidelity sound reproduction.

Detailed Application Field Plans

The LM3876TF/NOPB finds application in various audio systems, including:

1. Home theater systems
2. Professional audio equipment
3. Car audio systems
4. Musical instrument amplifiers
5. Public address (PA) systems
6. Sound reinforcement systems

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 substitutes for the LM3876TF/NOPB in various audio amplification applications.

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