TDA7377 amplifier circuit

The circuit is a 60Watts (30X2) TDA7377 amplifier circuit. This Integrated Circuit (IC) TDA7377 is a quad amplifier IC i.e. it has four inputs and outputs channels with each channel 15W peak power output. However, this design uses bridges of two channels to umake it a stereo amplifier, thus (30X2 = 60W) peak RMS. Additionally, this IC is a ready amplifying IC which requires just few external components for its operation. The main amplifying components are already inbuilt. As a result of this, it is convenient for even a learner to build an audio amplifier using the IC.

The components you need for this TDA7377 amplifier circuit are:

  • TDA7377 IC
  • 10KΩ (1) Resistor
  • 1uF (2) Electrolytic Capacitors
  • 45uF (1) Electrolytic Capacitor
  • 10uF (1) Electrolytic Capacitor
  • 1000uF (1) Electrolytic Capacitor
  • 100nF (104) Ceramic Capacitor
  • Speakers
  • 9V or 12V Battery

When constructing this circuit, the integrated circuit should be mounted on a heat sink for cooling the IC. Meanwhile, if you want to power the circuit with a 12V adapter, if possible in cooperate a low power fan (something like a 5V fan is ok) to help in cooling the IC while operating.

When you connect the “standby” contact to the positive potential, it activates the amplifier.

TDA7377 amplifier circuit

2 thoughts on “TDA7377 amplifier circuit”

  1. This circuit is very good and simple quality sound also in it I have built it now but my equation is it possible to bridge it into one channel to get 120watts???

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