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Monday, May 23, 2011

TDA2005 Audio Amplifier Circuit

Here’s a circuit for car radio audio amplifier circuit is specially designed to work on devices like: car radios, cd-players and similar devices. The car radio audio amplifier circuit is based on the TDA2005 audio IC which can provide a maximum output power of 20 watts into a 4 ohms load, connected in bridge mode configuration. This is the figure of the circuit;

The TDA2005 audio amplifier IC can work in even in bridge mode or stereo mode configuration.  The TDA2005 audio IC is a class B audio amplifier designed in a Multiwatt 11 package and can be ordered in two types TDA2005M used for bridge mode application or TDA2005S used in stereo applications. If the TDA2005 is used in stereo mode it can deliver a 10 + 10 watts output power in a 2 ohms load. The advantage of using the TDA2005 audio amplifier in bridge mode configuration is that the total harmonic distortion (THD) is 1% and the THD for  the stereo configuration  mode is 10 %. The Tda2005 audio amplifier IC supports a wide range of input voltage from 8 volts up to 18 volts. The TDA2005 main features are:  short circuit protection, overrating chip temperature, low external components required , bridge or stereo booster amplifiers with or without boostrapand with programmable gain and bandwidth , no electrical isolation between the package and the heat sink .


  1. Hello....
    I want to convert 1.28V 1200mA DC current into
    5V 800mA DC OR 110V 180mA AC.
    Is that Possible or not???????
    u can mail me too at

    Thank u.....

  2. Really Good Circuit

    Plz visit my blog:- MYCIRCUITS9