LM1875T/LB03

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Power Amplifier
• Characteristics: High-performance, low-distortion, audio amplifier IC
• Package: TO-220-5 package
• Essence: The LM1875T/LB03 is a monolithic power amplifier offering excellent sound quality and high efficiency. It is designed for audio applications that require a combination of high output power and low distortion.
• Packaging/Quantity: Available in tubes or reels, with 50 units per tube/reel.

Specifications

• Power Supply Voltage: ±22V to ±60V
• Output Power: 20W to 30W
• Total Harmonic Distortion: 0.015% (typical)
• Input Impedance: 150kΩ
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM1875T/LB03 has a 5-pin configuration:

1. Pin 1: Non-inverting Input (+IN)
2. Pin 2: Inverting Input (-IN)
3. Pin 3: Output (OUT)
4. Pin 4: V- (Negative Power Supply)
5. Pin 5: V+ (Positive Power Supply)

Functional Features

• High-quality audio amplification with low distortion
• Wide operating voltage range for flexibility in power supply selection
• Thermal shutdown protection to prevent overheating
• Short-circuit protection to safeguard the amplifier and connected components

Advantages and Disadvantages

Advantages: - Excellent sound quality - High efficiency - Wide operating voltage range - Built-in protection features

Disadvantages: - Requires external heat sink for proper thermal management - Limited output power compared to some other power amplifier ICs

Working Principles

The LM1875T/LB03 operates as a class AB audio power amplifier. It amplifies the input audio signal and delivers it to the connected speakers or load. The amplifier uses a combination of voltage and current feedback to achieve low distortion and high linearity.

Detailed Application Field Plans

The LM1875T/LB03 is commonly used in various audio applications, including: - Home stereo systems - Professional audio equipment - Musical instrument amplifiers - Car audio systems - Public address systems

Alternative Models

Other alternative models that can be considered for similar applications include: - TDA2030A - TDA2050 - LM3886 - TPA3116D2

These alternative models offer different specifications and features, allowing users to choose the most suitable option based on their specific requirements.

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