IC TDA2002 amplifier circuit diagram 8W, this is a class AB audio power amplifier circuit which built using a TDA2002 or TDA2003 power amplifier IC module. These are replacements for the original LM383, which is no longer available. It is easy to build and has a minimum of external components. The module has both short circuit protection and thermal protection. It can drive loads as low as 1.6 ohms and is capable of delivering over 10 watts from a 16 V supply.

The TDA2002 and TDA2002A are integrated circuit amplifiers specially designed for use in car radios, where the adverse electrical environment places great demands upon the reliability of circuits.

The supply voltage may be anywhere between +8 and +18V, and the IC will accept transient voltage peaks of up to 28V without damage. The IC can supply a short-circuit output current of 3.5 A and 15W of power at a case temperature of 90 °C. At a supply voltage of 14.4V (fully charged battery) the maximum output power is at least 4.8W, and typically 5.2W into a 4 Ω load.

The IC will, in fact, drive load impedance’s as low as 2 Ω, in which case the maximum output power is at least 7W and typically 8W. The above power are all measured at 10% distortion, but obviously at lower output powers the distortion is much less (Typically 0.2%).

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Specifications:

• C. Input: 8 – 18V, 10 – 20 VA min.
• Power output:
  • > 10 W RMS, 2 ohm load, 16V DC supply.
  • > 6W RMS, 4 ohm load, 16V DC supply.
  • > 4W RMS, 4 ohm load, 12V DC supply.
• THD: < 0.2% (1W, 4 ohm load) Gain: 40 dB maximum. S/N ratio : > 80 dBA. (G = 20 dB) > 60 dBA (G = 40 dB)
• Frequency response: < 20 Hz to > 40 kHz (-3dB, 4 ohm load)
• Input level:
  • < 100 mV for full output (G = 40 dB)
  • < 1V for full output(G = 20 dB)

Schematic diagram of the audio power amplifier tda2002

Suggestion for PCB amplifier circuit TDA2002

List of material to assemble the mono power amplifier

Last update: 09/08/2021 20:13

Part	Value	Description	Quantity
Capacitors
C1, C5	470uF/25V	Electrolytic capacitor	2
C2	100nF	Ceramic Capacitor	1
C3	10uF/16V	Electrolytic capacitor	1
C4	39nF	Polyester Capacitor	1
C6	1000uF/25V	Electrolytic capacitor	1
C7	100nF	Polyester Capacitor	1
Semiconductors
IC1	TDA2002	Audio amplifier integrated circuit.	1
Resistors 1/4W
R1	39 ohms	Orange, white, black, gold	1
R2	220 ohms	Red, red, brown, gold	1
R3	2.2 ohms	Red, red, brown, gold	1
R4	1 ohm 1W	Brown, black, gold, gold	1
Miscellaneous
P1	10K (103)	Potentiometer	1
CN1	IN	Jst Xh 2-Way Connector 2.54 mm pitch	1
CN2	DC	Terminal block 2 pin 5.08 mm	1
CN3	OUT	Terminal block 2 pin 5.08 mm	1
Solder, Wires, PCB, Box, Power Supply, etc.

For more information about the tda2002 integrated circuit, see the datasheet!

Download the PDF, PNG, postscript and Gerber plates for the Amplifier Circuit.

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Mirror

Download the PDF Datasheet of IC TDA2002

This IC can be found as TDA2002H, TDA2002V, UPC2002

 

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About the author

Toni

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