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DescriptionThe TDA2003A is capable of providing a high output current (up to 3.5 A) with very low harmonic and crossover distortion. Completely safe operation is guaranteed due to DC and AC short-circuit protection between all pins and ground, a thermal limiting circuit, load dump voltage surge protection up to 40 V and protection diodes in case of accidental open ground.Pin DescriptionPin NumberPin NameDescription1Non – Inverting InputNon inverting end ( ) of Amplifier2Inverting InputInverting end (-) of Amplifier3GroundConnect to the ground of the circuit4OutputThis pin outputs the amplified signal5Supply VoltageSupply voltage, Minimum 6V and Maximum 36V FeaturesLow-frequency class AB amplifier most suited for audio amplificationCan provide up to 20 Watts as output powerOperating Voltage: 8V to 18VMaximum output power 12V (at 1.6Ω RL)Voltage Gain: 80dBSupply Voltage rejection: 36dBShort circuit and thermal protection is availableBreadboard friendlyAvailable in 5-pin TO220 packageNote: Complete Technical Details can be found at the datasheet give at the end of this page.Introduction to TDA2003TDA2003 is a general-purpose 10W amplifier IC that can be used in stereo or mono audio design circuits.   The amplifier can output up to 3.5A current to drive speakers and can also handle high current up to 5A for shorter duration without any damage. It can also handle short circuits in both AC and DC rail without killing itself. It has an operating voltage of 18V but can handle high voltage up to 28V. This makes it robust to be used in automotive audio designs.The TDA2030 is breadboard friendly and hence can be easily tested using a breadboard. A sample application circuit for TDA2030 is given below. The datasheet given at the bottom of this page consists of more details on this design.TDA2003 is a 5-pin Amplifier IC. The pin 5 and 3 are used to power the Amplifier IC, and the audio signal to be amplified is given in through pin 1 which is the non-inverting input. The amplified audio output can be obtained through pin 4. The values of the components given above are the values recommended by manufactures. The two important components are the Cx and Rx which sets the bandwidth for the amplifier using the formulae shown above. Also the Resistors R1 and R2 are used doe setting the gain of the amplifier.ApplicationsUsed for Audio signal AmplificationSuitable for high power amplificationCapable of operating on dual/split power supplyCan be used to cascade audio speakersDocument:Datasheet