TDA2004 Stereo Amplifier: Circuit, Datasheet, Working

TDA2004 Symbol

TDA2004 Footprint

TDA2004 3D Model

The TDA2004 is a class B dual audio power amplifier in Multiwatt11 package specifically designed for car radio applications

Power booster amplifiers can be easily designed using this device that provides a high current capability (up to 3.5 A) and can drive very low impedance loads (down to 1.6 W).

■ Low distortion

■ Low noise

■ Protection against:

– Output AC short circuit to ground

– Overrating chip temperature

– Load dump voltage surge

– Fortuitous open ground

– Very inductive loads

TDA2004 Test and Application Circuit

TDA2004-Printed circuit board and components layout 

First and foremost, the circuit receives voltage. The voltage will then be charged to C5 via D1. The voltage increases at IC1/1's pin 10 (output). Until the voltage of the power supply is about identical.

Circuit diagram of step-up DC converter using TDA2004

D2 then transmits the electricity to C6 to charge it. It results in a voltage of roughly 0V at pin 10 of IC1/1. However, the voltage across C6 or the output is about equivalent to the power supply.

Following that, the voltage on the output (pin 8) of IC1/2 begins to climb. Because C5 has ceased to charge. As a result, C7 is charged via the power supply.

As a result, there is a current pass D3 to charge C6. And the voltage at pin 8 is around 0V.

The circuit's operation will thereafter be restarted in the same manner as before.

At C6, both the current get out of pin 8 and the current get out of pin 10 will be combined.

As a result, the output voltage rises to 2 times the input voltage. Because the input voltages of pins 8 and 10 are mixed together.

The capacitors C1 through C4 function as a 5 kHz square wave generator. To figure out how IC1 works.

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