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.
RATINGS:
Vs – Supply Voltage: 12 at 32 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
Suggestion for PCB amplifier circuit tda 2040
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 | |
Download the PDF for the pcb for circuit and power amplifier
the best circuit
Hello ENG/osama ahmed ali
Thanks your feedback!
What are the characteristics of the speaker?
Hello Gabriel
20 to 50W – 4 at 16 ohms.
In what size should I need print the PCB layout????
can you provide pcb for the same for tda 2040
Hey Toni i like your pictures, which software did you use 2 make them?
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
can i use speaker 8 ohm??
which watt or ohm for speaker can i use other from 30 watts 4 ohm??
4700µF 35V == Polyester or Capacitor??
Electrolytic
Electrolytic
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