LM380N-8/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Audio Power Amplifier

Characteristics: - Single supply voltage range: 10V to 22V - Output power: 2.5W - Low distortion: 0.2% (typical) - Wide bandwidth: 70kHz (typical) - Package: 14-pin DIP (Dual Inline Package) - Essence: Monolithic amplifier with internal thermal shutdown protection and short circuit protection - Packaging/Quantity: Tube/50 pieces per tube

Specifications

The LM380N-8/NOPB is an audio power amplifier IC designed for low-power applications. It operates on a single supply voltage ranging from 10V to 22V, making it suitable for various portable audio devices. The amplifier delivers an output power of 2.5W with low distortion levels of 0.2% (typical). Its wide bandwidth of 70kHz ensures accurate reproduction of audio signals.

Pin Configuration

The LM380N-8/NOPB features a 14-pin DIP package with the following pin configuration:

1. Gain Control 1
2. Input 1-
3. Input 1+
4. Bypass Capacitor
5. Ground
6. Output
7. Supply Voltage
8. Gain Control 2
9. Input 2+
10. Input 2-
11. N/C (No Connection)
12. N/C (No Connection)
13. N/C (No Connection)
14. N/C (No Connection)

Functional Features

• Internal thermal shutdown protection: The LM380N-8/NOPB incorporates a built-in thermal shutdown mechanism that protects the device from overheating.
• Short circuit protection: The amplifier includes short circuit protection, preventing damage to the IC in case of a short circuit on the output.
• Wide supply voltage range: The IC can operate within a wide supply voltage range, providing flexibility in various audio applications.
• Low distortion: With a low distortion level of 0.2%, the LM380N-8/NOPB ensures high-quality audio reproduction.
• Wide bandwidth: The amplifier's wide bandwidth of 70kHz allows for accurate amplification of audio signals.

Advantages and Disadvantages

Advantages: - Compact size and easy integration into audio systems - Internal thermal shutdown and short circuit protection enhance reliability - Wide supply voltage range enables versatile application possibilities - Low distortion ensures high-quality audio output - Wide bandwidth allows for accurate signal reproduction

Disadvantages: - Limited output power of 2.5W may not be sufficient for high-power audio applications - Lack of additional features such as tone control or equalization options

Working Principles

The LM380N-8/NOPB operates as a class AB audio power amplifier. It amplifies the input audio signal and delivers it to the output with increased power. The internal circuitry ensures low distortion and wide bandwidth performance. The built-in thermal shutdown protection prevents the IC from overheating, while the short circuit protection safeguards against damage caused by output short circuits.

Application Field Plans

The LM380N-8/NOPB is commonly used in various audio applications, including: 1. Portable audio devices: MP3 players, portable radios, and handheld gaming consoles. 2. Audio amplification in automotive systems: Car audio amplifiers and head units. 3. Home audio systems: Miniature stereo systems, computer speakers, and boomboxes. 4. Communication devices: Intercom systems, walkie-talkies, and two-way radios.

Alternative Models

For users seeking alternative options, the following models can be considered: 1. TDA2030A: Similar audio power amplifier IC with higher output power capability. 2. LM386: Low voltage audio power amplifier IC suitable for battery-powered applications. 3. TPA3116D2: Class D audio amplifier IC with higher efficiency and digital input options.

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

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