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TDA2030A

18W Hi-Fi audio power amplifier, +/-6-22V, 0.08% THD, Pentawatt-5

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Manufacturer Part：

TDA2030A

Package：

Pentawatt-5 (TO-220-5 vertical)

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Description

Product Overview

The TDA2030A from STMicroelectronics is an 18W Hi-Fi audio power amplifier in a Pentawatt-5 package. Operating from +/-6V to +/-22V, it delivers up to 18W into 4 Ohm with 0.08% typical THD. Internal thermal and short-circuit protection make it nearly indestructible in typical audio circuits.

Key Specifications

Output Power 18W (4 Ohm, +/-16V, 0.5% THD)
Supply Voltage +/-6V to +/-22V
THD (typical) 0.08% (8 Ohm, 8W, +/-16V)
Output Current 3.5A peak
Bandwidth 10Hz to 140kHz (-3dB)
Input Sensitivity 200mV (for 8W output)
Package Pentawatt-5 (TO-220-5 vertical)
Operating Temperature 0 to +150 C (junction)

Features

  • 18W output power into 4 Ohm load
  • Very low THD: 0.08% typical
  • Wide supply voltage range: +/-6V to +/-22V
  • Built-in thermal shutdown
  • Short-circuit protection
  • High output current: 3.5A peak

Applications

  • Hi-Fi audio amplifiers
  • Active speaker systems
  • Bridge-tied-load (BTL) amplifiers
  • Instrument amplifiers

The TDA2030A from STMicroelectronics is a monolithic audio power amplifier in a Pentawatt-5 package capable of delivering 18W output power into a 4 Ohm load with only 0.08% typical total harmonic distortion. Operating from split supplies of +/-6V to +/-22V, it provides excellent sound quality for Hi-Fi applications. The device includes comprehensive protection: thermal shutdown activates when junction temperature exceeds approximately 150C, and output short-circuit protection limits current to a safe level. The 3.5A peak output current enables driving low-impedance loads. Two TDA2030A devices can be connected in bridge-tied-load (BTL) configuration to deliver up to 36W into 4 Ohm. The device requires minimal external components for a complete amplifier circuit.

The TDA2030A uses a class AB output stage with a differential input pair. The input stage accepts both inverting and non-inverting signals, enabling flexible gain configuration. The class AB output stage uses complementary NPN and PNP power transistors with bias circuitry to minimize crossover distortion. The output stage includes current-sensing for short-circuit protection: when output current exceeds the threshold, the drive is reduced to limit current. Thermal protection uses a temperature-sensing circuit that monitors die temperature and disables the output stage when it exceeds the safe limit. The frequency compensation is internal, requiring no external compensation capacitor. The 140kHz bandwidth ensures phase margin and flat frequency response across the audio band.

Pin Name Function
1 IN+ Non-inverting input
2 IN- Inverting input (feedback)
3 VCC- Negative supply voltage
4 OUTPUT Amplifier output (to speaker)
5 VCC+ Positive supply voltage
  • Single-channel Hi-Fi audio amplifier delivering 18W into 4 Ohm speakers
  • Active monitor speaker systems with 0.08% THD for studio use
  • Bridge-tied-load (BTL) amplifiers using two devices for 36W output
  • Guitar and instrument practice amplifiers with thermal and short-circuit protection
Model Manufacturer Key Difference
TDA2050 ST 32W into 4 Ohm, higher power
TDA7294 ST 100W DMOS, much higher power
LM386N-4 TI 1W, single supply, low power
TPA3116D2 TI Class-D, 50W, much more efficient
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Service & Packaging

Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

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Contact Information

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Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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