The TDA2009 amplifier circuit diagram is a bridge audio power amplifier hi-fi in multiwatt package, developed especially for high quality stereo applications. This application is the bridge amplification, where the two tda2009 internal amplifiers are used. The good thing about the TDA series of integrated circuits is that they are electronic components that are easy to find in electronics stores.
The TDA2009 is a class AB stereo audio power amplifier that contains two identical amplifiers capable of delivering 10W per channel.
It is designed for quality Hi-Fi stereo application which is easy to construct and has a mini mum need of external components.
The TDA2009A is a class AB dual Hi-Fi Audio power amplifier assembled in MULTIWATT® package, specially designed for stereo application as Hi-Fi and music centers
All features
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- High output power (10 + 10w min. @ d = 1%)
- AC short circuit protection
- High current capability (up to 3.5a)
- Space and cost saving : very low number of external components and simple mounting thanks to the multiwatt® package.
- Thermal overload protection
TDA2009 amplifier circuit diagram schematic, bridge
PCB, printed circuit board for TDA2009A amplifier circuit diagram
Information on the amplifier circuit in bridge with tda2009 IC
The power supply is from 12 to 22 volts max. with current of 2 amperes.
Part List
| Component | Value |
| Resistors | |
| R1 | 2k or 2.2K |
| R2 | 1K |
| R3, R4 | 39 Ohms |
| R5, R6 | 1 Ohms |
| Capacitors | |
| C1 | 100n – Capacitor Ceramic |
| C2, C3 | 2.2µF /25V – Capacitor Electrolytic |
| C4, C6, C7 | 220µF /25V – Capacitor Electrolytic |
| C5 | 22µF/25V – Capacitor Electrolytic |
| C8, C9 | 100n – Capacitor Polyester |
| Semiconductors | |
| IC1 | TDA2009 |
| Connectors | |
| IN | Terminal block connector 2 screws – Audio input |
| OUT | Terminal block connector 2 screws – Audio Output |
| POWER | Terminal block connector 2 screws – Power supply |
| Miscellaneous | |
| Power supply de 12 a 22VDC 2A | |
| Heatsink to IC TDA2009 | |
| Printed Circuit Board, Welding, Wires, Box, etc. | |
Information about the Bridge Amplifier Circuit with TDA2009A IC
Download the PDF files for this assembly. Includes PDF, PNG, and GERBER PCBs for you to order your PCB.
IC TDA2009 PDF datasheet STMicroelectronics
See also the stereo amplifier with the same IC
pin no.7 solder to ground!!
it make sound clear
pin no 11. not solder.
I have try that.
muito bom o conteudo
Olá Rafael
Obrigado pelo feedback!