TDA2003A IC TO-220 (5pin) Code: 79530209

The TDA2003 is a popular, monolithic Class-AB audio power amplifier. Famous for its use in car radios and DIY electronics, it provides up to 10W of continuous audio output. It requires very few external components, is highly cost-effective, and is breadboard-friendly.

Key Specifications

• Operating Voltage:8V to 18V DC
• Peak Output Power:Up to 12W (at 1.6Ω load)
• Output Current:Up to 3.5A (5A peak for short durations)
• Voltage Gain:80dB
• Distortion:Very low harmonic and crossover distortion
• Package Type:5-pin TO-220

Pin Configuration

The TDA2003 utilizes a 5-pin TO-220 package:

1. Non-Inverting Input (+):Audio signal input
2. Inverting Input (-):Grounded or used for feedback
3. Ground:Circuit ground
4. Output:Connected to the positive terminal of the speaker
5. Supply Voltage :Power input (8V to 18V)

Built-in Protections

• Thermal Over-range:Prevents the IC from overheating
• Short-Circuit Protection:Defends against AC and DC shorts between pins
• Load Dump:Handles voltage surges of up to 40V

Practical Uses

• Car radio audio amplifiers
• Low-power home audio systems
• DIY electronics projects and guitar practice amplifiers