2pcs Tda2030a audio amplifier IC

🔹 2PCS TDA2030A – 14W Hi-Fi Audio Power Amplifier IC (Pentawatt Package)

A robust monolithic integrated circuit in the Pentawatt (TO-220-like) package, delivering high-quality audio output up to 14 watts into a 4Ω load. It features a wide operating voltage range, low distortion, and built-in short-circuit and thermal protection, making it a classic choice for DIY audio projects, active speakers, and subwoofer amplifiers.

✅ Specifications:

• Part Number: TDA2030A (Enhanced version of TDA2030)

• Type: Class AB Audio Power Amplifier

• Output Power (RMS):

  • 14W @ 4Ω, ±14V (Typical)

  • 9W @ 8Ω, ±12V (Typical)

• Supply Voltage Range: ±6V to ±22V (Dual Supply) or +12V to +44V (Single Supply)

• Quiescent Current: ~40mA (Typical)

• Total Harmonic Distortion (THD): <0.1% (at 8W, 8Ω, 1kHz)

• Frequency Response: 10Hz to 140kHz (-3dB)

• Input Sensitivity: ~700mV for full output (Gain dependent)

• Gain: Externally adjustable via feedback resistors (typically set to 30dB/32x).

• Protections: Short-Circuit and Thermal Overload protection with automatic shutdown.

• Package: Pentawatt (VERTICAL) – 5 pins (Similar to TO-220 but with 5 leads)

• Pinout:

  1. Non-Inverting Input (+IN)

  2. Inverting Input (-IN)

  3. V- (Negative Supply / GND for single supply)

  4. Output (OUT)

  5. V+ (Positive Supply)

• Quantity: 2 pieces

⚙️ Key Features:

• High Output Power: Capable of driving small to medium-sized speakers with clear, powerful sound.

• Low Noise & Distortion: Hi-Fi grade performance suitable for quality audio applications.

• Wide Supply Range: Flexible power supply options from dual-rail (e.g., ±12V) to single-rail (e.g., +24V).

• Robust Protections: Built-in safeguards make it durable and forgiving for hobbyist use.

• Simple External Circuit: Requires only a few external components to build a complete amplifier.

📦 Typical Applications:

• DIY Hi-Fi Amplifiers: Bookshelf speaker amplifiers, computer speakers, and portable boomboxes.

• Active Subwoofer Drivers: In 2.1 or 5.1 channel systems (when used in a bridged/parallel configuration).

• Guitar/Bass Practice Amps: Simple, clean power stages for musical instruments.

• PA & Intercom Systems: For small public address or room audio distribution.

• Educational Audio Projects: Learning about amplifier design and audio electronics.

🔧 Basic Single Supply Circuit (for 8Ω speaker):

1. Power: Connect V+ (Pin 5) to your positive supply (e.g., +24V) and V- (Pin 3) to GND.

2. Bootstrap: Use the recommended application circuit from the datasheet, including:

   • Input coupling capacitor (e.g., 1µF).

   • Feedback resistors (e.g., 22kΩ and 680Ω for ~30dB gain).

   • Bootstrap capacitor (100µF) for single supply operation.

   • Output Zobel network (0.22µF + 1Ω resistor) for stability.

   • Power supply decoupling capacitors (100µF electrolytic + 0.1µF ceramic close to the IC).

3. Heatsinking: MANDATORY. The TDA2030A must be mounted on a substantial aluminum heatsink using thermal paste. The metal tab is electrically connected to Pin 3 (GND/V-).

⚠️ Critical Design & Safety Notes:

• HEATSINK IS NON-NEGOTIABLE: This IC will overheat and destroy itself within seconds without a proper heatsink, even at moderate volume. Use a heatsink rated for at least 5°C/W or lower.

• Power Supply: Ensure your supply can deliver sufficient current (≥2A per IC for full power). Use large filter capacitors (e.g., 2200µF per rail).

• Single vs. Dual Supply: Single supply is simpler but requires a “virtual ground” at half-supply for the input, typically created by a voltage divider and large capacitor.

• Bridge Configuration: Two TDA2030As can be configured in a Bridge-Tied Load (BTL) circuit to deliver up to 28W into an 8Ω speaker, but this requires careful design and a dual supply.

• Stability: Always include the Zobel network (RC snubber) on the output and keep component leads short to prevent high-frequency oscillation.