Circuit power audio amplifier TDA2040 20 watts integrate circuit with pcb and power supply circuit

The TDA2040 is a monolithic integrated circuit in Pentawatt  package, intended for use as an audio class AB amplifier. Typically it provides 22W output power (d = 0.5%) at Vs = 32V/4Ω. The TDA2040 provides high output current and has very low harmonic and cross-over distortion. Further the device incorporates a patented short circuit protection system comprising an arrangement for automatically limiting the dissipated power so as to keep the working point of the output transistors within their safe operating area. A thermal shut-down system is also included.

tda2040 audio amplifier circuit 450x360 Circuit power audio amplifier TDA2040 20 watts integrate circuit with pcb and power supply circuit

ABSOLUTE MAXIMUM RATINGS:

Vs – Supply Voltage: ± 20 V
Vi – Differential Input Voltage: ± 15 V
Io- Output Peak Current (internally limited) 4 A
Ptot – Power Dissipation at Tcase = 75 °C: 25 W
Tstg, Tj – Storage and Junction Temp. -40 to 150°C

Schematic diagram of the audio power amplifier tda2040

tda2040 audio amplifier schematic Circuit power audio amplifier TDA2040 20 watts integrate circuit with pcb and power supply circuit

Suggestion for PCB amplifier circuit tda 2040 – 200% zoom

tda2040 audio amplifier pcb eagle Circuit power audio amplifier TDA2040 20 watts integrate circuit with pcb and power supply circuit

Layout component side pcb tda2040 click to zoom

tda2040 audio amplifier componentes eagle 450x272 Circuit power audio amplifier TDA2040 20 watts integrate circuit with pcb and power supply circuit

Silk screen pcb click 200%  zoom

tda2040 audio amplifier silk screen Circuit power audio amplifier TDA2040 20 watts integrate circuit with pcb and power supply circuit

List of components for the amplifier

Parts Value
Capacitors
C1 1µF/35v – Electrolytic Capacitor
C2,C4 22µF/35v – Electrolytic Capacitor
C3 220µF/35V – Electrolytic Capacitor
C5 100nF polyester film Capacitor
C6 220nF polyester film Capacitor
C7 2200µF/35v Electrolytic Capacitor
Semiconductors
IC1 TDA2040
Connectors
IN Audio input
VCC Power supply
OUT Audio output
Resistors 1/4 Watts 5%
R1, R2, R3, R5 22k Red, Red, Orange, Gold
R4 680 blue, Gray, Brown, Gold
R6 4.7 Yellow, violet, Gold, Gold
Miscellaneous
Power supply, heat-sink to the IC, printed circuit board, solder, Box, Speakers 30 watts 4 Ohms

Circuit power supply for use with tda2002 –  15 volts / 1.2 amps

tda2xxx powersupply 2 450x337 Circuit power audio amplifier TDA2040 20 watts integrate circuit with pcb and power supply circuit

Schematic circuit of power supply for tda

tda2xxx powersupply SCHEMATIC 450x174 Circuit power audio amplifier TDA2040 20 watts integrate circuit with pcb and power supply circuit

Suggested pci for mounting the power for the circuit with tda – 1:1 scale

tda2xxx powersupply pcb v1 Circuit power audio amplifier TDA2040 20 watts integrate circuit with pcb and power supply circuit
Pcb option 1
tda2xxx powersupply pcb v2 Circuit power audio amplifier TDA2040 20 watts integrate circuit with pcb and power supply circuit
Pcb option 2

Layout component side

tda2xxx powersupply layout Circuit power audio amplifier TDA2040 20 watts integrate circuit with pcb and power supply circuit

List of components for assembly of the power supply
Parts Value
Capacitors
C1 100nF 100 nF Polyester Capacitor – 100n, 0.1, .1, or 104
C2 4700µF 35V Polyester Capacitor
C3 ,C4, C5, C6 10nF Polyester or ceramic capacitor – 10n, 0,01, or 103
Semiconductors
D1, D2, D3, D4 1N4004
LED1 Led 5mm any color
Resistor 1/4 watt 5%
R1 10k Brown, Black, Orange, Gold
Miscellaneous
T1 Transformer – Primary according to the network and secondary 12-volt / 2.5 amps
AC Connector for transformer
VCC Output Connector VCC
Other Wire, Plugs, box, pcb, etc.

For more information on the integrated circuit tda 2040 datasheet!

Download the PDF for the pcb for  circuit and power amplifier

Users electronic tags:

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Filed Under: AmplifierAudioCircuits

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About the Author: Xtronic.org blog author. Electronics technician for the technical school of Brasilia - Brazil. Interested in electronics, circuits and technology in general.

RSSComments (7)

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  1. RaMs Navarro says:

    Hey Toni i like your pictures, which software did you use 2 make them?

  2. yasir says:

    some componant in partlist is difer from schematic diagram.[R2 is 20K and C6 is 100nF in schematic diagram, but in the part list R2 is 22K and C6 is 220nF].which is reyal

  3. JAKUV says:

    can i use speaker 8 ohm??

  4. JAKUV says:

    which watt or ohm for speaker can i use other from 30 watts 4 ohm??

  5. Jakuv says:

    4700µF 35V == Polyester or Capacitor??

  6. Prem says:

    Does TDA 2040 need a pre amp ,I want to connect to DTH audio output {sattelite reciever }.I have build a circuit ,but there is no sound yet .Do i need 2200 or 220micro F to my speaker ,pls reply

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