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TDA1562Q Audio Amplifier Circuit

TDA1562Q si a 70 W high efficiency power amplifier with diagnostic facility. The TDA1562Q contains a mono class-H BTL output power amplifier.

At low output power, up to 18 W, the device operates as a normal BTL amplifier. When a larger output voltage swing is required, the internal supply voltage is lifted by means of the external electrolytic capacitors. Due to this momentarily higher supply voltage the obtainable output power is 70 W.
The heatsink should be designed for use with music signals. If the case temperature exceeds 120 °C, the device will switch back from class-H to class-B operation. The high power supply voltage is then disabled and the output power is limited to 20 W. When the supply voltage drops below the minimum operating level, the amplifier will be muted immediately.

TDA1562q amplifier circuit schematic

TDA1562Q Audio Amplifier circuit schematic

8 Comments

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  • shyamal kar

    Please send one 5.1 total amplifire.

  • ede prosper

    Please sir what is the supply voltage. Thanx for ur good work.

  • Ron H

    A good rule of thumb, when it comes to certain IC’s , stick to
    the original specs on any chip. When you don’t stick with specs and you try to modify the circuit beyond the specs , your
    taking a risky gamble of the circuit not working the way it should.

    As a Hobby Electronics Technician ,I tried with several types
    of LM380 ,Lm384 and Lm386. I did burn one or two out as part
    of this experience. Because of this experience ,I finally
    found out for my self, that sticking to specs , as outline
    in the semiconductor sheets, it did finally work.

    This is what I will say: If you will modify the circuit ,
    YOU WILL DO SO AT YOUR OWN RISK. THIS IS MY WARNING.

    CONSIDER THIS YOUR WARNING. I WILL NOT BE HELD RESPONSIBLE
    FOR ANY ACTION THAT YOU DO.

    Do Not Pester The Author. It’s time to breadboard and see
    what gives on your own circuit.

    Ron H
    RONALDHAMMOND5 @aol.com

  • krokkenoster

    What is the supply voltage? All looks very impressive It appear to be 13v8 volts

  • alphaxard

    pls tell us how we can get this chip so that we try it out i am in nairobi kenya.

  • Furqan

    nice projects are availiable here please send me more projects related to this .
    i will be very thankful to you
    thanks

  • Phillip juma

    Hello! where can i get this chip? i have looked around for it but unale to get even one piece.
    Iam in Nairobi -kenya.
    thank you for the information.

  • arun

    tda1562 is a very good choice for those who searches for a distortion less amp.
    more over it has been used by some of the branded companies suchas creative……..

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