TDA2822 mono amplifier circuit bridge 2W

This is a small amplifier using TDA2822 chip. Including volume control

TDA2822 mono amplifier circuit bridge 2W, General integrated amplifier circuit external components and need more larger heatsink. This paper presents a simple amplifier circuit, made easy. TDA2822 amplifier integrated circuits used in music players, portable DVD and other audio playback; power is not great but you can satisfy the requirements of the hearing, and the circuit is simple, good sound quality, wide voltage range of characteristics such as the amateur production Small amp better choice.

This is a small amplifier using TDA2822 chip. Including volume control. A 12 volt power supply is ideal for supply, which can be a source with batteries or transformer. It is not necessary to use heat sink.

The TDA2822D is a monolithic integrated circuit in 8 lead (SO-8) package. It is intended for use as a dual audio power amplifier in portable cassette players, radios and CD players.

All features

  • Supply voltage down to 1.8 V
  • Low crossover distortion
  • Low quiescent current
  • Bridge or stereo configuration

Circuit diagram TDA2822 mono amplifier circuit bridge 2W

Circuit Diagram Tda2822 Mono Amplifier Circuit Bridge 2W

Scheme for mounting the circuit click to enlarge

Printed circuit board PCB for TDA2822 mono amplifier circuit bridge 2W

Printed Circuit Board Pcb For Tda2822 Mono Amplifier Circuit Bridge 2W
Printed Circuit Board Pcb Component View


For a stereo version is only set up two identical circuits, and a dual pot to adjust the volume.

BOM for assembling the TDA2822 Amplifier

Part Value
C1 10nF Polyester capacitor
C2, C3 100nF Polyester capacitor
C4, C5 10µF/16V Polarized Electrolytic Capacitor
C6 100µF/16V Polarized Electrolytic Capacitor
IC1 TDA2822 — Integrated Circuit
Resistors 1/4 watt 5%
R1 10K – Brown, Black, Orange, Gold
R2, R3 4.7 Ohms – Yellow, Violet, Gold
P1 10K Logarithmic Potentiometer—For volume.
CN2 (Out) Speaker audio output
CN1 (IN) Audio Input
CN3 (DC) The circuit is powered by batteries or a DC source.
Power supply, printed circuit board, solder, amplifier box, 3 to 10 watt speakers 4 to 16 Ohms, etc.

Last update: 06/08/2021 22:22

Download the PCB in PDF, PNG, Gerber and PostScript



This IC is available as TDA2822m, tda2822l, tda2822d and tda2822a and TDA2822H

Buy kits TDA2822 in Aliexpress with free Shipping in the Worldwide.

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About the author blog author. Electronics technician for the technical school of Brasilia - Brazil. Interested in electronics, circuits and technology in general.

12 thoughts on “TDA2822 mono amplifier circuit bridge 2W”

  1. friend thanks for the circuit helped me a lot .. I can say it is called the program that where you have the components. are very real, I would greatly appreciate digest the name of that program thanks in advance

  2. cordial saludo:
    amigo gracias por el circuito me sirvió de mucho.. me pueden decir como se llama el programa ese donde tiene los componentes. se ven muy reales le agradecería mucho que me digieran el nombre de ese programa de antemano gracias

  3. Hi Toni Thankx for the circuit . But Can you tell me That how to Deliver maximum Wattage From this 2822 amp By providing it 3.7 Volts , As your circuit is based upon 12 Volts , Please solve my this query .Thak you

  4. Hi, I’ve been looking for a SPICE model for the TDA2822 without any luck. I’ve done numerous web searches and checked the ST site. I’ve even emailed their Tech. Support without any response.
    Do you have any ideas where I might find one?


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