Home Circuits Amplifier Stereo Power audio amplifier with TDA7297 – 2 x 15 Watts

Stereo Power audio amplifier with TDA7297 – 2 x 15 Watts

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Power amplifier TDA7297 3D board
Power amplifier TDA7297 3D board

complete stereo amplifier circuit including printed circuit board to power of 2 X 15 Watts. Using minimum of components in the integrated circuit TDa7297 ST Microelectronics. This IC presents in its interior two bridge amplifiers, making it useful for use where a stereo amplifier need easy assembly. may operate with voltages 6-18 volts and has protection against excess temperature.

About the TDA7297 – 15+15w dual bridge amplifier

  • Wide supply voltage range (6v -18v)
  • minimum external components
  • no svr capacitor
  • no bootstrap
  • no boucherot cells
  • internally fixed gain
  • stand-by & mute functions
  • short circuit protection
  • thermal overload protection

tda7297 amplifier audio stereo assembly 595x440 Stereo Power audio amplifier with TDA7297   2 x 15 Watts power amplifier circuit power amplifier Audio amplifier tda AmplifierSchematic of the amplifier using TDA7297 or TDA7297SA

amplifier circuit tda7297 schematic 700x508 Stereo Power audio amplifier with TDA7297   2 x 15 Watts power amplifier circuit power amplifier Audio amplifier tda Amplifier
Power amplifier TDA7297 schematic

Suggested printed circuit board (PCB) for the power audio amplifier

amplifier circuit tda7297 tda7297 pcb 700x671 Stereo Power audio amplifier with TDA7297   2 x 15 Watts power amplifier circuit power amplifier Audio amplifier tda Amplifier
Power amplifier TDA7297 PCB
amplifier circuit tda7297 layout 700x744 Stereo Power audio amplifier with TDA7297   2 x 15 Watts power amplifier circuit power amplifier Audio amplifier tda Amplifier
Power amplifier TDA7297 PCB layout
Power amplifier TDA7297 PCB silk
Power amplifier TDA7297 PCB silk

 List of material for mounting the circuit TDA7297

Part Value
Resistor’s 1/4 W 5%
R1 1.5K – Brown, Green, Red, Gold
R2, R3 47K – Yellow, Violet, Orange, Gold
Capacitor’s
C1 2200µF/25V – Polarized Electrolytic Capacitor
C2 100nF/250V – capacitor polyester
C3 10µF/25V – Polarized Electrolytic Capacitor
C4 220nF /100V – capacitor polyester
C5 220nF /100V – capacitor polyester
Semiconductors
IC1 TDA7297 or TDA7297SA – Integrated circuit audio amplifier stereo bridge – ST Microelectronics
LED Red LED
Miscellaneous
VCC Connector power supply
IN Audio input connector
OUT1 Audio output 1 connector
OUT2 Audio output2  connector
J1 J12MM -Piece of wire 12mm
P1 50K – Double logarithmic potentiometer
Wire, PCB, Box, power supply 9-18 Volts / 2 Amps *, etc..

Download the PDF files to mount the amplifier – Datasheet Tda7297 the PCB, PCB layout components, PCB Silk and Schematic.
Download PDF      Mirror

Buy diy kit TDA7297 amplifier in Aliexpress

23 COMMENTS

  1. Hi,

    I have built the amp as per diagram and is working.
    The problem that I am having is the the heat sink is getting too hot, I am concerned burning the I.C.

    Do you have any pointers that I can look at to resolve this issue?

    Thank you

  2. Really nice circuit. I satisfied with it’s performance.
    My question is that, why 220nF capacitors are used to input of TDA7297?

  3. Ensamble uno pero Distorziona el amplificador
    Aunque a bajo volumen. Que puede ser?
    Prove con varios algunos alimentadores de 1.5 A 2A a 12 volst

  4. pl send me pcb ( with out components ) IAM IN INDIA IF IT IS POSIBLE .SO THAT ICAN GIVE YOU MY ADDRES

    THANKS

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