25W Power Amplifier TDA2040 Circuit Diagram

Introduction

The TDA2040V amplifier circuit is an integrated circuit monolithic power amplifier that operates as a class AB audio power amplifier. It is widely used in various audio applications, including home theater systems, mobile audio devices, and hi-fi audio systems. One of the main advantages of the TDA2040V is its ability to produce high output power with low distortion, providing an enhanced audio experience. In this essay, we will explore the features and specifications of the TDA2040V monolithic power amplifier.

The TDA2040V is a versatile audio amplifier, designed to provide high-quality audio output with a low level of distortion. The device operates from a split voltage power supply ranging from 12V to 36V, allowing a maximum output power of 25 watts into a 4ohm load with 0.5% distortion. It features a high input impedance of 150 k ohms , making it compatible with a wide range of audio input sources.

Circuit Diagram

of 25W Power Amplifier TDA2040

More Circuit Layouts

**LA4440 Amplifier, Tone Control & MP3**

Bass Tone Control Circuit Diagram — **LA4440 Amplifier, Tone Control & MP3**

**Variable Power Supply 0-30V_10A Circuit Diagram**

Stereo Amplifier TDA7297 Dual-Bridge Circuit Diagram — **Variable Power Supply 0-30V_10A Circuit Diagram**

**25W Power Amplifier TDA2040 PCB Layout**

TDA2040 Pin Connections Pinout — **TDA2040 Pin Connections (Pinout**)

**25W Power Amplifier TDA2040 Specification**

The TDA2040V is built with a class AB amplifier architecture, which ensures high efficiency while providing a balance between the two classes A and B. The amplifier can handle a wide range of input signal frequencies, ranging from 20 Hz to 20 kHz, and has a signal-to-noise ratio of 90 dB.

The monolithic power amplifier is constructed to offer high reliability and protection against short circuits, thermal overload, and DC voltage. It also has an automatic mute feature, which ensures that there is no popping or thumping sound at the start or end of signal transmissions.

Components List

of 25W Power Amplifier TDA2040

TDA2040V IC x 4
220uf Capacitor x 2
22uf Capacitor x 1
1uf Capacitor x 1
100nf Capacitor x 3
22k Resister x 2
680 ohms Resister x 1
4.7k Resister x 1

Conclusion

The TDA2040V monolithic power amplifier is a robust and reliable device that delivers high-quality audio output with low distortion. It is widely used in various audio applications, from home theater systems to hi-fi audio systems. The amplifier operates from a split voltage power supply, allowing for a maximum output power of 25 watts into a 4 ohms load with 0.5% distortion. Its high input impedance ensures compatibility with a wide range of audio input sources, while its class AB amplifier architecture guarantees high efficiency and a balance between classes A and B.

Finally, the TDA2040V is a well-protected device, shielding against short circuits, thermal overload, and DC voltage. The automatic mute feature ensures that there is no popping or thumping sound at the start or end of signal transmissions. In summary, the TDA2040V is an excellent monolithic power amplifier, providing high-quality audio output and reliability for various audio applications.