TEA2025B

Product Overview

• Category: Integrated Circuit
• Use: Audio Amplifier
• Characteristics: Low voltage, dual channel, stereo audio amplifier
• Package: DIP (Dual Inline Package)
• Essence: TEA2025B is a compact and efficient audio amplifier designed for low voltage applications. It provides high-quality stereo sound amplification in a small form factor.
• Packaging/Quantity: Available in tubes or reels, with varying quantities depending on the supplier.

Specifications

• Power Supply Voltage: 3V - 15V
• Output Power: 2.5W per channel (at 9V, 4Ω load)
• Total Harmonic Distortion: 0.2% (at 1W, 1kHz)
• Signal-to-Noise Ratio: 70dB (typical)
• Input Sensitivity: 40mV (for maximum output power)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The TEA2025B has a total of 16 pins, which are arranged as follows:

___________ | | 1 | 2 3 4 | 5 6 | 7 8 9 | 10 11 | 12 13 14 | 15 |___________|

1. Mute
2. Input 1-
3. Input 1+
4. GND (Ground)
5. Output 1
6. VCC (Power Supply)
7. Output 2
8. GND (Ground)
9. Input 2+
10. Input 2-
11. Bootstrap
12. Bootstrap
13. GND (Ground)
14. Output 4
15. VCC (Power Supply)
16. Output 3

Functional Features

• Dual channel stereo audio amplification
• Low voltage operation, suitable for portable devices
• Built-in thermal and short-circuit protection
• Mute function for easy control of audio output
• Wide operating temperature range for various environments

Advantages and Disadvantages

Advantages: - Compact size and low power consumption - High-quality audio amplification - Built-in protection features ensure device longevity - Versatile application possibilities

Disadvantages: - Limited output power compared to higher wattage amplifiers - Requires external components for optimal performance

Working Principles

The TEA2025B is based on a class AB amplifier configuration. It utilizes a bridge-tied load (BTL) architecture to provide stereo sound amplification. The input audio signals are amplified by two separate channels and then combined to drive the speakers. The built-in mute function allows easy control of the audio output.

Application Field Plans

The TEA2025B can be used in various audio amplification applications, including: - Portable audio devices such as MP3 players and smartphones - Computer speakers and multimedia systems - Car audio systems - Home theater systems - Personal audio amplifiers

Alternative Models

If the TEA2025B is not available or does not meet specific requirements, alternative models with similar functionality include: - TDA2030A - LM386 - TPA3116D2 - STA540

These alternatives offer different specifications and package options, allowing users to choose the most suitable option for their specific needs.

In conclusion, the TEA2025B is a compact and efficient audio amplifier designed for low voltage applications. With its dual channel stereo amplification, built-in protection features, and versatile application possibilities, it is a popular choice for various audio amplification needs.