The TDA2050 is a high-quality class-AB audio amplifier IC widely used in premium audio systems, DIY speaker projects, subwoofers, and home-theatre applications due to its clean output and excellent thermal stability. Before exploring the detailed sections, it is important to understand the TDA2050 pinout, because correct wiring ensures stable operation, prevents distortion, and helps achieve maximum output power in Hi-Fi audio amplifier designs.

Introduction
The TDA2050 is a powerful class-AB audio amplifier IC designed to deliver up to 32W of high-fidelity audio output. It offers very low harmonic distortion, wide frequency response, and superior sound clarity, making it ideal for professional audio equipment, home stereo amplifiers, and Hi-Fi speaker systems. Its high supply voltage capability and integrated protection circuits ensure reliable operation even under demanding audio loads.

Pin Configuration of TDA2050 Power Amplifier IC

The TDA2050 pinout consists of five pins in the standard Pentawatt package. The metal tab is internally connected to VCC− and must be mounted on a suitable heatsink.
| Pin# | Pin Name |
|---|---|
| 1 | Non-Inverting Input (+) |
| 2 | Inverting Input (-) |
| 3 | V- (Negative Supply) |
| 4 | Output |
| 5 | V+ (Positive Supply) |
Note: DATASHEET DOWNLOAD button is provided end of this article.
TDA2050 Key Features
- High-quality, low-distortion audio performance
- Class-AB output stage with wide bandwidth
- Excellent thermal stability
- Built-in short-circuit and thermal shutdown protection
- Suitable for single- and dual-supply designs
- High-fidelity sound with minimal crossover distortion
- Compatible with Hi-Fi, subwoofer, and stereo amplifier circuits
TDA2050 Specifications/Characteristics
- Supply Voltage (Vs): ±25V maximum
- Output Power: up to 32W with proper heatsinking
- Total Power Dissipation (Ptot): 32W
- Storage Temperature (Tstg): −40°C to +150°C
- Operating Class: Class-AB audio amplifier
- Package Type: 5-Pin Pentawatt
- Pin Assignments: 1-Non-Inv. Input, 2-Inv. Input, 3-VCC−, 4-Output, 5-VCC+
Key Applications of TDA2050 Power Amplifier IC
- Hi-Fi stereo amplifier systems
- High-power active speaker modules
- Subwoofer amplifier circuits
- Home theatre audio amplifiers
- DIY audio amplifier projects
- Musical instrument amplifiers
- Active crossover and multi-channel amplifier systems
TDA2050 Equivalent ICs / Alternatives
(Verify pin compatibility before using substitutions)
- TDA2040 (lower power)
- TDA2030A (general audio alternative)
- LM1875 (similar audio performance)
- TDA2050L (equivalent variant)
- TDA1514 (high-fidelity option)
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Working Principle of TDA2050
The TDA2050 works as a class-AB audio amplifier using a differential input stage followed by a high-current push-pull output stage. This configuration ensures high linearity and very low distortion, even at high output power levels. The internal biasing network minimizes crossover distortion, while built-in protections (thermal, overload, and short-circuit) ensure long-term reliability. When fed with a small audio signal, the IC amplifies it efficiently and drives speakers with clean and powerful output.
Frequently Asked Questions (FAQ)
Q1: What is the TDA2050 pinout?
It includes Inverting Input, Non-Inverting Input, VCC−, Output, and VCC+ pins.
Q2: How much power can the TDA2050 deliver?
Up to 32W with proper supply voltage and heatsinking.
Q3: Does the TDA2050 need a heatsink?
Yes. For stable and distortion-free operation, heatsinking is essential.
Q4: Can the TDA2050 work with a single supply?
Yes, but dual-supply (±) operation provides better performance.
Conclusion
The TDA2050 is a robust, high-performance 32-watt class-AB audio amplifier IC ideal for Hi-Fi home audio systems, subwoofers, musical instrument amplifiers, and DIY audio projects. With its clean output, protective features, and straightforward pinout, it is one of the most reliable choices for high-quality sound amplification. Understanding the TDA2050 pinout and using proper thermal management will help achieve exceptional audio clarity and long-term stability.
Datasheet of TDA2050 Power Amplifier IC
Click the following Button below to download the datasheet of TDA2050 :
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