Car Stereo Amplifier Circuit

Car Stereo Amplifier Circuit

Given below is the circuit of a car stereo amplifier that can be used in cars or other vehicles. We have used TDA1553, which is a Class-B audio amplifier.

Description :

Here is the circuit of a car stereo amplifier based on TDA1553. TDA1553 is a monolithic Class-B audio amplifier which contains 2 x 22 watt amplifiers in bridge tied load configuration. The amplifier operates from 12V DC and is developed intentionaly for car audio applications. The IC also has a load of good features like short circuit protection, load dump protection, reverse polarity protection, loud speaker protection etc.

In the circuit , C5 and C4 are input decoupling capacitors while C3 sets the delay time for loud speaker protection. C1 and C2 are power supply filter capacitors.

Car Stereo Amplifier Circuit diagram:

Car stereo amplifier circuit diagram

Car stereo amplifier circuit schematic

Notes :

  • Assemble the circuit on a good quality PCB.
  • Use 12V DC for powering the circuit.
  • The circuit can deliver 22W per channel into 4 ohm speakers.
  • Fit the IC with a proper heat sink.

Check our Other Amplifier Circuits:

1. 50 Watt Mosfet Amplifier

2. 15 Watt Audio Amplifier

3.  Headphone Amplifier

4.  2*60 Watts Audio Amplifier

5. 40 Watts Audio Amplifier Circuit

If you want more Audio circuits, Amplifier Circuits and Automotive circuits – Check our respective categories:

1. Audio Circuits

2. Amplifier Circuits

3. Automotive Circuits

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7 Responses to “Car Stereo Amplifier Circuit”

  • okpala michael says:

    thanks 4 de ckt sir. it work very well

  • siddhesh naik says:

    I want to make an electronic circuit of car stereo amplifier. so i want capacitor of 100nF . and i have here 2 capacitors with me 1000uF and o.1uF . which capacitor will give me same effect as 1oonF ?

    on every capacitors tolerance as 100uF and voltage as 10v are mentioned. but i have noticed in same circuit that they have not mentioned voltage of capacitors. which voltage capacitor should i take in this circuit? kindly help me sir.

    • Seetharaman says:

      100nF is nothing but 0.1uF (1000nF = 1uF) 1000uF is 1000000nF.
      In the car environment it is better to use all capacitors, rated for minimum of 25 volts.

  • migs says:

    its not labelled with Rin and Lin, but in the drawing its already there!!!

  • john says:

    where i can put the audio in >?>?? thanks

  • GE says:


  • mayank says:

    what are various uses of TDA 2003 Other than amplifier?