The TDA2030 is a monolithic integrated circuit in the Pentawatt package, intended for use as a low-frequency Class-AB amplifier. It provides high output current and has very low harmonic and cross-over distortion. The device incorporates a short-circuit protection system that includes an arrangement for automatically limiting the dissipated power so as to keep the working point of the output transistors within their safe operating area. A conventional thermal shutdown system is also included. It is widely praised in the Hi-Fi community for its “musical” sound quality and is a common choice for high-quality active speakers and subwoofer systems.
TDA2030 Pinout (Pentawatt)
The TDA2030 is housed in a 5-pin Pentawatt package. When looking at the front of the IC with the pins pointing downward, the pins are numbered 1 to 5 from left to right.
| Pin | Terminal | Function |
| 1 | Non-Inverting Input (+) | Audio signal input |
| 2 | Inverting Input (–) | Feedback connection to set gain |
| 3 | −VS / GND | Negative supply or ground |
| 4 | Output | Amplified audio signal to the speaker |
| 5 | +VS | Positive power supply voltage |
Technical Specifications
- Supply Voltage (VS): ±6V to ±18V (Dual) or 12V to 36V (Single)
- Output Power: 14W (at 4Ω load, ±14V) / 18W (at 4Ω load, ±18V)
- Frequency Response: 10 Hz to 140 kHz
- Total Harmonic Distortion (THD): 0.08% (at 0.1W to 7W)
- Open Loop Gain: 80 dB
- Quiescent Current: 40mA to 60mA
- Maximum Operating Temperature: 150°C (Junction)
Key Features & Benefits
- Hi-Fi Performance: Very low distortion levels compared to standard general-purpose amplifiers.
- Integrated Protections: Built-in thermal and short-circuit protection for high reliability.
- Dual/Single Supply: Can be used with either a split power supply or a single rail power source.
- Large Power Bandwidth: Handles a wide range of audio frequencies with high fidelity.
Common Applications
- Active Speakers: Used as the primary amplifier for high-quality bookshelf speakers.
- Subwoofers: Bridged configurations are common for driving small to medium subwoofers.
- TV Audio Stages: Providing clear sound output for modern flat-screen televisions.
- Instrument Amplifiers: Used in practice amplifiers for keyboards and guitars.
TDA2030 Equivalent & Substitutes
- TDA2050 (Higher power pin-compatible upgrade – 32W)
- LM1875 (Premium “audiophile” pin-compatible substitute)
- NTE1380 (Standard replacement equivalent)
- TDA2003 (Lower power alternative, different pinout)
Related Tutorials on ElxHub
- Basics: Learn more in Integrated Circuits – Basics and Working
- Selection Guide: Compare power options in our Ultimate IC Selection Guide
Conclusion
The TDA2030 is a legendary IC for anyone transitioning from basic sound projects to high-fidelity audio design. Its robust protection features and low distortion make it a forgiving yet high-performing chip for DIY enthusiasts. Whether you are repairing a commercial speaker system or building your own custom Hi-Fi setup, the TDA2030 provides the clarity and power required for professional-grade audio.
Download the IC’s Datasheet pdf
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