LA4450L-E

Product Overview

Category: Integrated Circuit (IC)

Use: Audio Power Amplifier

Characteristics: - High output power - Low distortion - Wide operating voltage range - Compact package size - Suitable for audio applications

Package: Dual in-line package (DIP)

Essence: LA4450L-E is a high-performance audio power amplifier IC designed for various audio applications.

Packaging/Quantity: Available in reels or tubes, quantity depends on manufacturer's packaging specifications.

Specifications

• Operating Voltage Range: 5V - 15V
• Output Power: 5W x 2 (at 10% THD)
• Total Harmonic Distortion: 0.1% (at 1kHz, 1W)
• Frequency Response: 20Hz - 20kHz
• Input Sensitivity: 200mV (at 1kHz, 5W)
• Standby Current: 0.5mA (typical)

Detailed Pin Configuration

The LA4450L-E IC has the following pin configuration:

1. VCC (Positive Power Supply)
2. GND (Ground)
3. IN1 (Input 1)
4. IN2 (Input 2)
5. N.C. (No Connection)
6. OUT1 (Output 1)
7. OUT2 (Output 2)
8. N.C. (No Connection)

Functional Features

• Built-in thermal shutdown circuitry to protect against overheating.
• Short-circuit protection for speaker outputs.
• Excellent channel separation and low crosstalk.
• Easy integration into audio systems due to its compact size and simple pin configuration.

Advantages and Disadvantages

Advantages: - High output power allows for loud and clear audio reproduction. - Low distortion ensures high-quality sound output. - Wide operating voltage range provides flexibility in various applications. - Compact package size saves space in circuit designs.

Disadvantages: - Limited output power compared to higher wattage amplifiers. - Requires external components for proper operation. - May require additional heat dissipation measures for prolonged use at high power levels.

Working Principles

The LA4450L-E is a class AB audio power amplifier that amplifies low-level audio signals to drive speakers. It operates by receiving input audio signals through the IN1 and IN2 pins, amplifying them, and delivering the amplified signals to the OUT1 and OUT2 pins. The IC utilizes internal circuitry to ensure stable operation and protect against potential issues such as overheating and short circuits.

Detailed Application Field Plans

The LA4450L-E is commonly used in various audio applications, including: - Portable speakers - Home audio systems - Car audio systems - Multimedia devices - Musical instruments

Detailed and Complete Alternative Models

Some alternative models to the LA4450L-E include: - TDA7265 - LM386 - TPA3116D2 - STA540

These alternative models offer similar functionality and can be considered based on specific requirements and design constraints.

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