Before moving into the details, here is a brief look at the TDA2005 pinout, which helps you understand how this bridge amplifier IC connects with speakers and external components.

Introduction
The TDA2005 is a high-power bridge audio amplifier IC widely used in car audio systems and portable high-output sound modules. Designed to operate within an 18–28V supply range, it provides strong output performance while maintaining low distortion. Its bridge configuration enables significantly higher power output compared to standard stereo ICs, making it ideal for driving a single high-power speaker or subwoofer.
The IC is highly reliable, incorporating built-in protections against short circuits, overload, and thermal shutdown. Its robust design and stable operation under demanding conditions make it one of the most popular audio ICs for automotive sound systems.

Pin Configuration / Pinout of TDA2005 Power Amplifier IC

Understanding the TDA2005 Pinout Configuration
The TDA2005 pinout consists of input pins for the audio signal, output pins for the bridged load, bootstrap pins for improved drive capability, supply voltage pins, and ground connections. This configuration allows two internal amplifiers to work together in bridge mode to deliver high output power to a single speaker.
| Pin# | Pin Name |
|---|---|
| 1 | NON-INV-INPUT 1 |
| 2 | INV-INPUT 1 |
| 3 | SVRR |
| 4 | INV-INPUT 2 |
| 5 | NON-INV-INPUT 2 |
| 6 | GND |
| 7 | BOOTSTRAP 2 |
| 8 | OUTPUT 2 |
| 9 | +Vs |
| 10 | OUTPUT 1 |
| 11 | BOOTSTRAP 1 |
Note: DATASHEET DOWNLOAD button is provided end of this article.
TDA2005 Key Features
- Bridge amplifier configuration for high output power
- Designed for automotive audio systems
- Low distortion across full audio range
- Built-in short-circuit and thermal protection
- Stable performance even with supply fluctuations
- Drives low-impedance speakers efficiently
- Requires minimal external components
TDA2005 Specifications/Characteristics
- Supply voltage range: 18V to 28V
- Total power dissipation: 30W
- Storage temperature range: 40°C to 150°C
- Bridge output for high power delivery
- Low total harmonic distortion
- Internal thermal shutdown protection
- Short-circuit and overload protection
Key Applications of TDA2005 Power Amplifier IC
- Car audio amplifiers
- High-power portable speaker systems
- Subwoofer amplifier modules
- DIY bridge amplifier projects
- Automotive multimedia systems
- Single-speaker high-output designs
TDA2005 Equivalent ICs / Alternatives
(Verify pin compatibility before using substitutions)
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Working Principle of TDA2005
The TDA2005 operates using two internal power amplifier stages configured in a bridge (BTL) connection. In bridge mode, one amplifier outputs the signal while the second amplifier inverts it. This creates double voltage swing across the speaker, resulting in significantly higher output power than a single-ended amplifier.
The IC maintains stable gain and distortion performance across the audio spectrum, thanks to its internal biasing and feedback design. Robust built-in protection circuitry ensures safe operation even under harsh conditions such as speaker faults or voltage surges in automotive systems.
Frequently Asked Questions (FAQ)
Q1: Why is the TDA2005 commonly used in car audio?
Because it supports high voltage and provides strong power output in bridge mode.
Q2: Can TDA2005 drive a subwoofer?
Yes, its bridged configuration can drive a single high-power speaker or subwoofer effectively.
Q3: Is it better than a stereo IC?
For single-speaker high-power output, yes. For stereo systems, a dual-channel IC may be more suitable.
Q4: Does it require many external components?
No, only a few capacitors and resistors are needed for stable operation.
Conclusion
The TDA2005 bridge amplifier IC is a powerful and reliable solution for automotive and high-output audio applications. With its strong performance, built-in protection features, and ability to deliver high power to a single speaker, it remains a popular choice for car amplifiers and DIY sound projects. Its durability and efficiency make it ideal for systems requiring both high output and dependable operation.
Datasheet of TDA2005 Power Amplifier IC
Click the following Button below to download the datasheet of TDA2005 :
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