Table of Contents
TDA2040 amplifier circuit diagram 30W. 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 to keep the working point of the output transistors within their safe operating area. A thermal shut-down system is also included.
RATINGS TDA2040 amplifier circuit diagram 20W:
- 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 PCB amplifier circuit diagram tda2040
Equivalent use TDA2050, TDA2030, Lm1875, TDa2030A
BOM to assemble the power amplifier
Last Update: 10/08/2021 22:30
| Part | Valor | Descrição | Quantidade |
| Capacitors* | |||
| C1 | 2.2µf/63V | Polyester capacitor | 1 |
| C2, C4 | 22µF | Electrolytic capacitor | 2 |
| C3 | 220µF | Electrolytic capacitor | 1 |
| C5 | 100nF | Ceramic Capacitor | 1 |
| C6 | 220nF/63V | Polyester capacitor | 1 |
| C7 | 2.200µF | Electrolytic capacitor | 1 |
| Semiconductors | |||
| IC1 | TDA2040 | Audio amplifier integrated circuit | 1 |
| Resistors 1/4W 5% | |||
| R1, R2, R3, R5 | 22k | Red, red, orange, gold | 4 |
| R4 | 680 Ohms | Blue, gray, brown, gold | 1 |
| R6 | 4.7 Ohms 2W | Yellow, violet, gold, gold | 1 |
| Miscellaneous | |||
| CN1 | IN (Audio Input) | Terminal block 2 pin 5.08 mm | 1 |
| CN2 | DC (Power Supply) | Terminal block 2 pin 5.08 mm | 1 |
| CN3 | OUT (Audio Output) | Terminal block 2 pin 5.08 mm | 1 |
| Solder, Wires, PCB, case, power supply, heatsink for the IC, etc. | |||
*For power supplies up to 18V, use electrolytic capacitors with a voltage of 25V, power supply up to 28V, use 35V capacitors, power supply higher than 30V use 50V capacitors.
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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