Stereo Audio Amplifier 2x2W or mono 5W ( TEA2025 )

These circuits are based on TEA2025, a monolithic integrated audio amplifier in a 16-pin plastic dual in-line package manufactured by UTC. The circuit includes an internal thermal protector and is designed for portable cassette players and radios. It can also be used as a PC audio amplifier. A few external components are required to build this circuit. Use a 9V transformer to power the circuit, but do not exceed DC12V, as this can damage the amplifier IC.

More: Stereo per channel
VCC=9V; RL=4Ω/3W
VCC=9V; RL=8Ω/2W

Bridge Application
VCC=9V; RL=8Ω/5W
VCC=9V; RL=4Ω/8W

Supply Voltage min = DC3V @ 500mA
Supply Voltage max = DC12V @ 500mA
Supply Voltage recommended = DC9V @ 500mA

The TEA2025 audio amplifier circuit is designed to provide high-quality audio amplification in a compact format suitable for various applications including portable cassette players, radios, and personal computers. The TEA2025 is housed in a 16-pin dual in-line package (DIP), which facilitates easy integration into various electronic designs.

The circuit's architecture incorporates an internal thermal protection mechanism, ensuring that the amplifier operates within safe temperature limits, thus enhancing reliability and longevity. The recommended supply voltage for optimal performance is 9V, with a current capacity of 500mA. The circuit can function with a minimum supply voltage of 3V and a maximum of 12V, although exceeding 12V may lead to potential damage to the integrated circuit.

For stereo applications, the amplifier can be configured to work with different load resistances (RL). For instance, when operating at 9V, the amplifier can support a load of 4Ω with a power output of 3W per channel, or 8Ω with a power output of 2W per channel. In bridge mode, the circuit is capable of delivering up to 5W with an 8Ω load or 8W with a 4Ω load, providing flexibility depending on the design requirements.

The design necessitates a few external components, which may include capacitors and resistors for stability and filtering, as well as a transformer to step down the voltage to the required levels. Careful attention to the power supply is essential, as the circuit is sensitive to voltage variations. Using a 9V transformer is advised to ensure consistent performance while preventing potential damage from higher voltage inputs.

In summary, the TEA2025 audio amplifier circuit is a versatile solution for audio amplification, offering various configurations to suit different applications while ensuring protection and reliability through its built-in thermal management features.These circuits are based on TEA2025 is a monolithic integrated audio amplifier in a 16-pin plastic dual in line package manufactured by UTC .Circuit has an Internal Thermal Protector. It is designed for portable cassette players and radios. You can also use it as your PC Audio Amplifier. A few external components required to build this circuit. Use 9v transformer to play the circuit. But not more than DC12v. Because it can damage the amplifier IC. So build n Enjoy. Stereo per channel VCC=9V;RL=4?/3W VCC=9V;RL=8?/2W Bridge Application VCC=9V;RL=8?/5W VCC=9V;RL=4?/8W Supply Voltage min = DC3v @ 500mA Supply Voltage max = DC12v @ 500mA Supply Voltage recommended = DC9v @500mA 🔗 External reference