TEA2025D

Product Overview

Category: Integrated Circuit (IC)

Use: Audio amplifier

Characteristics: - Low voltage audio power amplifier - Dual channel (stereo) output - High output power capability - Wide supply voltage range - Thermal protection - Short-circuit protection - Low crossover distortion - Low quiescent current

Package: DIP (Dual Inline Package)

Essence: TEA2025D is a low voltage audio power amplifier IC designed for stereo applications. It provides high-quality audio amplification with a wide supply voltage range and various protection features.

Packaging/Quantity: The TEA2025D IC is typically sold in a DIP package, which contains one unit per package.

Specifications

• Supply Voltage Range: 3V to 18V
• Output Power: 2.5W per channel (at 9V, 4Ω load, 10% THD)
• Total Harmonic Distortion (THD): 0.2% (typical)
• Quiescent Current: 6mA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The TEA2025D IC has a total of 16 pins, which are assigned specific functions as follows:

1. Mute
2. Input 1 (Non-inverting)
3. Input 1 (Inverting)
4. Ground
5. Output 1
6. Output 1
7. VCC (Positive Supply Voltage)
8. Bootstrap
9. Bootstrap
10. Output 2
11. Output 2
12. Ground
13. Input 2 (Inverting)
14. Input 2 (Non-inverting)
15. Standby
16. Mute

Functional Features

• Low voltage operation allows for use in portable devices.
• Dual channel output enables stereo audio amplification.
• High output power capability ensures sufficient volume levels.
• Wide supply voltage range provides flexibility in power source selection.
• Thermal protection prevents damage due to excessive heat.
• Short-circuit protection safeguards the IC and connected components.
• Low crossover distortion results in improved audio quality.
• Low quiescent current minimizes power consumption when idle.

Advantages and Disadvantages

Advantages: - Suitable for low voltage applications - Compact size and easy integration - Provides high-quality audio amplification - Offers thermal and short-circuit protection - Low power consumption during idle periods

Disadvantages: - Limited output power compared to higher wattage amplifiers - May require additional circuitry for specific applications

Working Principles

The TEA2025D is a class AB audio amplifier that operates on low voltage. It utilizes a dual channel configuration to provide stereo sound output. The input signals are amplified and then delivered to the respective output channels. The IC incorporates various protection mechanisms, such as thermal and short-circuit protection, to ensure safe operation and prevent damage to the device and connected components.

Detailed Application Field Plans

The TEA2025D IC finds application in various audio amplification scenarios, including but not limited to: - Portable audio devices (e.g., MP3 players, smartphones) - Personal computers and laptops - Home audio systems - Car audio systems - Multimedia speakers - Headphone amplifiers

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the TEA2025D IC include: - TDA2030A - LM386 - TPA3116D2 - STA540 - MAX9744

These alternative models offer similar functionality and can be used as substitutes depending on specific requirements and design considerations.

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