Tda2030 amplifier circuit and datasheet

Tda2030 amplifier circuit diagram and datasheet detailed in this post, before that, we include general information’s about TDA2030 amplifier ICs.

TDA2030 amplifier ICs are the most generic audio amplifier IC, which is widely used at standard audio systems, TDA2030 ICs are categories as the class-AB type amplifier, TDA2030 IC datasheet explains different properties and wider possibilities to change the schematic for to provide output characteristics. 

tda2030 datasheet mentioned about different amplifier circuits in terms of its wattage output and Power supply usage.

When we consider different circuits with various output wattage ranges, 14 watts is the standard output power TDA2030 amplifier ICs can provide in a circuit, that is why we build circuits like single power supply based TDA203014w amplifier with PCB and then Dual power supply based TDA2030 14w amplifier with PCB. 

Both the circuit provides 14-watt power at the output, so we need to provide 24volt DC for TDA2030 IC and to get such an output power dependent on the output load.

Increasing the level of output power into double or triple than normal, using different alterations made at the circuit, when we apply TDA2030 IC Datasheet, output power doubling is done using bridging process, 35w TDA2030 based bridge amplifier is the circuit used to double the power, and here we need a 30Volt power supply. 

Next, we have two more circuits that are not available at the TDA2030 IC datasheet, named as, TDA2030 amplifier with output driving transistor with PCB board and also 120w TDA2030 bridge amplifier with PCB board. Both of these circuits are push-pull type amplifiers that are, using a transistor at the output and this combination is for doubling the power delivery, for these circuits, we need to provide a DC voltage of 28-36v.

tda2030 datasheet

tda2030 datasheet
tda2030 datasheet

I have added all details about the tda2030 datasheet, if you need more about the datasheet

tda2030 pinout

tda2030 pinout
tda2030 pinout

tda2030 Pin Configuration


tda2030 Pin Configuration
tda2030 Pin Configuration

The figure shows the pin diagram and symbolic pin connections of TDA2030 IC

Pin Number Pin Name Description
1 Non – Inverting Input Non-inverting end (+) of Amplifier
2 Inverting Input Inverting end (-) of Amplifier
3 Vs (Ground) Connect to the ground of the circuit
4 Output This pin outputs the amplified signal
5 Vs (Power) Supply voltage, Minimum 6V and Maximum 36V


  1. Pin1–non-inverting pin
  2. Pin2 – inverting pin
  3. Pin3 –Vs
  4. Pin04 – output
  5. Pin05 – + vs

TDA2030 amplifier IC is the most widely using amplifier IC, when we start explaining about TDA2030 IC with power supply ranges, they have a voltage capacity up to 36v i.e. + or – 18v variants.

Then, we consider about maximum voltage for the differential amplifier, it had a maximum of + or – 15 volts.

Peak current produced at the output will be measured as 3.5amps, now the voltage and current rating will give a tiny calculation of power delivering, an individual TDA2030 IC ensures a 14-watt power at the output.

In the case of power delivery, we explain in terms of RL load.

RL = 8 or 4ohm = 12 to 8w= d=0.5% = f = 40 to 15khz and RL = 4 or 8ohm = 12 to 8w = d= 10% = f = 1khz


Consider about TDA2030 amplifier ICs protection measures are short circuit protection to the ground and thermal shutdown.

In the case of a short circuit protection system, it will work automatically, when it limits the dissipated power, which is to keep the operating point within the limit, and also here we don’t have the possibility to rising in temperature at TDA 2030 IC due to special systems.

TDA2030 amplifier IC-based information about power supplies that are voltage and current ranges, then schematic possibilities to change the circuit and also protection systems are explained with the help of the TDA2030 IC datasheet.

tda2030 FEATURES

  • Used as low-frequency class AB amplifier
  • 40-watt output power DELIVERING
  • (d=0.5%) at 14v, 14ohm, at 14v or 28v
  • The guaranteed output power of 12 Watt on 4ohm load and 8Watt on 8ohm load
  • High output current
  • Low harmonics
  • Crossover distortions
  • Short circuit protection
  • Auto limiting at dissipated power
  • Keep the operating point of the output transistor within the safe operating range
  • Conventional thermal shutdown system

Now, in this article, we explore more TDA2030 amplifier IC-based projects and additional information about each of these circuits

  • 14w single TDA2030 based amplifier with PCB
  • 14w Dual power TDA2030 based amplifier with PCB
  • 14w stereo amplifier using TDA2030 IC with PCB
  • TDA2030 based bridge amplifier 35w with PCB
  • TDA2030 amplifier with output driving transistor with    PCB board
  • TDA2030 120wbridge amplifier with PCB BOARD

These are the projects we included in this article, the first two projects, single power supply, and dual power supply are different due to its combinations of connection with TDA2030 ICs.

Then 35watt and 120watt TDA2030 based bridge amplifiers, the name indicates the properties that are combined two TDA2030 ICs. So bridge will be made double the output power delivering, this is true at, 35w TD2030 based bridge amplifier, but 120w bridge is much more different from normal bridge amplifier and they are similar to TD2030 amplifier with output driving a transistor with PCB board, these types are not available at TDA2030 IC datasheet, so output driving transistor type projects are explained in detailed. 

TDA 2030 amplifier IC with output driving transistor is our last project, specialty about this project is that it is not available at TDA2030 IC Datasheet, the development of this circuit is from outside.

tda2030 amplifier circuit single supply

Single power supply based TDA2030 14-watt amplifier with PCB, the name of the project makes a tiny idea about the schematic arrangement, which is the TDA2030 amplifier works under a single-stage power supply.

The schematic arrangement of a single power supply based TDA2030 amplifier circuit consists of two active components and very few passive components such as capacitors and resistors. 

TDA2030 ICs are our main component, property wise they are class AB amplifier packets; its main application is mostly related to amplification systems.

tda2030 amplifier circuit single supply
tda2030 amplifier circuit single supply

tda2030 amplifier circuit single supply working

Single power supply-based TDA2030 14 watt amplifier circuit, working concentrated on each individual component will be an explanation in this post as same as in the TDA2030 IC datasheet. 

TDA2030 amplifier IC contains 5 pins,1st,and2ndpins are the non-inverting and inverter pins, then 3rdand5th pin is +Vs positive supply and -Ve negative supply pins and the last 4th pins our output. 

Let us consider 1st pin, which is our non-inverting pin, it is our input section, so, first of all, we need a C1 Capacitor for DC coupling and filtering, combined with the resistor R3, this particular resistor has the main role to play in the circuit, which is to set an input impedance.

Next is our supply pins 3rd and 5thon this section, we spot the specialty about a single power supply circuit that is, power supply connections for this circuit only have positive and ground.

For this reason,5th pin connected to positive 24v and 3rdpin connected to ground, at this portion power supply apparatus and divergence of this particular circuit completed.

When we consider about specifics of class AB amplifier, cancellation of distortion is pop-top first, but there atTDA2030 IC, this duty is done by D1 and D2 IN4001 diodes connected across 5thand 3rd pin and also they protect whole amplifier device against output voltage strikes formation at the audio signal. 

Capacitor C3 used as the bypass capacitor which is connected across+ ve supplied to the ground will bypass the high-frequency noise signals and voltage spike cancellation towards the ground.

Next, we consider (R5&R6)resistors and C6 capacitor, combined action of these resistors results to form a non-inverting input biasing, which is for attenuate high-frequency entrance towards circuit and capacitors C6bypasses high power flow against R3 resistor.

Next is our most important zone at every amplifier project, feedback components and we all know amplifier need a negative feedback system,here to form a feedback loop we need a few passive components, they are R1and R2 resistor to form a voltage division network and that is connected from output to input.

This combination is generally known as a closed-loop gain setting network and also we can change the two resistors value for changing output gain, such schematic values are obviously mentioned in the TDA 2030 IC datasheet and such details will be certainly useful for amplifier board developers.

The output is our last section, 4th pin at TDA2030 IC indicates output, we have a capacitor of C5 for supply voltage bypassing and filtration process.

And also the output section completed with two more components R4 resistor and C7 capacitor, which is used for stabilization of frequency and also for bypassing higher frequency signals.

At last, we have capacitor C8 connected across +vesupply towards the ground, this is for upper frequency cut off purposes, that is when the signal will be limited at a particular frequency range higher than the value, will cause damage to the output signal, so capacitor C8 bypassing chopper-frequency variations. 

Quantity References Value
1 C1 1uF
1 C2 2uF
1 C3 100nF
1 C5 2200uF
1 C6 22uF
1 C7 220nF
1 C8 100uF
1 R1 150k
1 R2 4.7R
1 R3 100k
1 R4 1R
2 R5-R6 100k
1 U1 TDA2030
2 D1-D2 1N4007
1 INPUT Input
1 OUTPUT SIL-100-02
1 VOLUME 22k


PCB layout

tda2030 amplifier circuit single supply pcb
tda2030 amplifier circuit single supply pcb


tda2030 amplifier circuit single supply pcb top
tda2030 amplifier circuit single supply pcb top


tda2030 amplifier circuit single supply pcb top
tda2030 amplifier circuit single supply pcb top


 tda2030 dual power supply – 14-watt amplifier with PCB

Dual power supply based TDA2030 14-watt amplifier with PCB, this project is much different from a single power supply circuit because dual power supplies or split power supplies are the most reasonable model in terms of power supply variant.

Apart from single power supply TDA2030 based amplifiers; dual power supply based circuits have tiny difference connections.

In dual power supplies, +ve terminal portion, -ve negative terminal portion and ground are the supply connections, so naturally, we have questions pop up in our mind, what is the difference between Single power supply and dual power supplies?

Before that, we need to know about TDA2030 ICs, in terms of construction they are OP-amp-like devices, which having inverting and non-inverting terminals, dealing with positive and negative signal variations.

when we consider about single power supplies only have two connections namely +ve positive and the ground terminal, at this point we combine the working of TDA2030 single power supply with semiconductor diode now, we can spot more similarity because single power supply based TDA2030 amplifier dealing with alternative audio signal same as a half-wave rectifier. 

 TDA2030 IC produces an output only at +ve half cycle and at the same time it grounded the -ve portion, this is the exact working of a half-wave rectifier.

Such a property is labeled as a great advantage of dual power supply over single power supplies, which is the positive and negative portion of a signal that is equally amplified and exactly provides a sinusoidal output signal.

tda2030 dual power supply circuit
tda2030 dual power supply circuit

tda2030 dual power supply-Circuit explanation 

In terms of circuit, single power supply and dual power supplies are almost the same basic components that will use at it.

In order to make a circuit explanation with respect to the TDA2030 amplifier IC datasheet.

When we start with the input portion, the C1capacitor and R3 resistors are the input components, the C1 capacitor is for the DC coupling of filtering purposes.

R3 resistor is for non-inverting input biasing the signal, which will provide proper biasing for the incoming signal, adjusting the resistance value and capacitor value will cause changes in input impedance and frequency cut off.

Next, we have two 1N4001 diodes connected across 5thand 3rd pins and they are positive and negative supply ports so, naturally, diodes are for opposing output voltage strike formation and also for reducing distortion.

Next, we have two main sections of amplifier circuits, first feedback section, and output section, resistors R1 R2 and capacitor C2 combined to form feedback section, R1 R2 resistors are the gain setting components, increase in the resistance value of R1 will increases the gain of the circuit and vice versa.

When we consider about R2 resistor, its value increases because lowering the gain, this is because of the combination of resistors in series and we have a capacitor called C2, for inverting DC decoupling at the circuit.

The output section consists of resistor R4 and capacitor C7, both of them are for stabilizing the frequency of output signal, they oppose the danger of oscillation at high frequency.

And apart from the single power supplies, here we don’t have an output capacitor, it is because dual power supply having an alternative output signal.

At last, we consider about two capacitors namely C3and C4, both of them are connected at each power supply portions, C3 are at the positive side and C4 at the negative side, they are the supply voltage bypassing capacitor, in other words, C3 and C4 capacitors eliminate much lower frequency variation incoming towards our amplifier circuit network and they suppressing the mixing with the main audio signal.

Quantity References Value
1 C1 1uF
1 C2 22uF
2 C3-C4 100nF
1 C7 220nF
2 R1,R3 22k
1 R2 680R
1 R4 1R
1 U1 TDA2030
2 D1-D2 1N4007
1 J1 Input
1 J2 output
1 J3 +Vs
1 J4 -Vs
1 J5 GND


tda2030 dual power supply amplifier PCB

tda2030 dual power supply amplifier PCB
tda2030 dual power supply amplifier PCB
tda2030 dual power supply amplifier PCB top mirror
tda2030 dual power supply amplifier PCB top mirror
tda2030 dual power supply amplifier with PCB top
tda2030 dual power supply amplifier with PCB top
tda2030 dual power supply amplifier PCB top
tda2030 dual power supply amplifier PCB top

tda2030 stereo amplifier circuit with PCB

tda2030 stereo amplifier circuit using TDA2030 IC with PCBs are basically a doubling process, in normal case stereo means two amplifiers with the same audio output, but they recorded from different angles for a different sound experience.

At early stages amplifier devices are only used for enhancing the sound or strengthening the input audio signal, at that time they should not consider the quality and experience of the sound.

Modern-day users need a sound experience technology; this will increase the chances of making a stereo amplifiers, which will need two amplifier stages and audio output speakers.

They are a combination of two amplifiers and also two output speakers, for this reason, sound recording for the original stereo amplifier is done with two microphones on the same occasion.

tda2030 stereo amplifier circuit working 

tda2030 stereo amplifier circuit
tda2030 stereo amplifier circuit

The figure shows the circuit diagram of the 14watt stereo amplifier using TDA 2030 IC, stereo amplifier circuits are the combination of two circuits,here it is a combination of two dual power supply circuits, which combined to form two inputs at each circuit and two outputs speakers for both circuits. This will make the change over from the mono amplifier into a stereo amplifier.

Circuit working and explanation are the same as the dual power supply circuit, the only difference is two of such circuits combined.

Input signal separately is given into both amplifiers, at input stage we have C1 C5capacitors on both amplifiers, and they act as DC coupling components and R3 R5 resistors, which is for non-inverting input biasing and also for setting proper input impedance. 

Next, we have D1,D2, and D3,D4 diodes at both circuits, for opposing the voltage spike formation and they connected across 5thand 3rd pins of TDA 2030 IC.

Feedback loops at the circuit areR1,R2 resistors, and C2 capacitor in the right amplifier and R6, R7 resistors, and C6 resistor-capacitor at the left amplifier.

R1 R2 and R6, R7 resistors are for gain setting at both amplifier circuit, because resistance value setting will results in the output gain at both amplifiers then C2 and C6 capacitors are for inverting DC coupling processes.

The output section consists of R4,C7 network at right and R8, C9 network at left, they are the frequency stabilizing combination networks at each Circuit.

In the output of both amplifiers, these components act as the frequency stabilizer and they oppose the danger of oscillation at the high-frequency range.

Last but not least, we have two capacitors at both power supply connections, on right C3, C4 capacitors, and on left C10, C8 capacitors and they are used for elimination of lower frequency variation at both amplifier circuits.

Quantity References Value
2 C1,C5 1uF
2 C2,C6 22uF
4 C3-C4,C8,C10 100nF
2 C7,C9 220nF
4 R1,R3,R5,R7 22k
2 R2,R6 680R
2 R4,R8 1R
2 U1-U2 TDA2030
4 D1-D4 1N4007
2 J2,J7 output
1 J3 +Vs
1 J4 -Vs
1 J5 GND
1 J11 input


tda2030 stereo amplifier PCB

tda2030 stereo amplifier circuit pcb
tda2030 stereo amplifier circuit pcb
tda2030 stereo amplifier circuit pcb top mirror
tda2030 stereo amplifier circuit pcb top mirror
tda2030 stereo amplifier circuit pcb top
tda2030 stereo amplifier circuit PCB top
tda2030 stereo amplifier circuit with pcb top
tda2030 stereo amplifier circuit with PCB top

tda2030 bridge amplifier circuit 

tda2030 bridge amplifier circuit is the project that mainly contribute to the process wattage doubling, first of all, the circuits used for building a bridge amplifier is a mono output based circuit. Amplifier bridging had more applications in daily life,  mostly at a public presentation, then the circuit explained in this article is based on the TDA2030 IC datasheet. 

tda2030 bridge amplifier Circuit 

tda2030 bridge amplifier circuit 

In normal cases setting a bridge between two amplifier boards is not a simple process, because of the TDA2030 IC properties, they all have to be satisfied to build a good amplifier bridge circuit.

A combination of two dual power supply amplifiers combined in a manner to form abridge, so here IC1 and IC2 will be divided as a master amplifier and slave amplifier.

Input section

Then after the master amplifier says, IC1 will be our input amplifier and we set a C1 Capacitor for reducing the noise of the signal and R1 resistor are for to set an input impedance and, at the same time IC2 that is our slave amplifier input pin1 will be grounded with R8 resistor. 

Input signal

We mentioned earlier audio signal will be mono type, that’s like a sinusoidal signal, so the signal has positive and negative half-cycles.

The positive portion of the signal is amplified by IC1 and the negative portion of the signal is amplified by IC2.

Output load ( speaker or woofer)

Speakers have two connections positive terminal and ground, in normal condition amplifier circuit outputs, will be connected to the speaker in that manner, but here both amplifier outputs are directly connected to the speaker.

This is the reason why power is multiplied in bridge amplifier, so speakers preferable here will be double than normal value, for the smooth operation (4 ohm speakers replace with 8 ohm speaker)


TDA2030 IC-based projects already have a feedback network, so both IC1 amplifier and IC2 amplifier have a feedback element, but a common feedback network is needed here for correct operation, IC1 output is connected to IC2 inverting input through R9 resistor.

Feedback is termed as the must thing at amplifier because of the property called the clipping effect, but the resistance value setting for feedback dependson input impedance.

Then the C3 capacitor and R4 resistor are the components to eliminate back EMF  incoming from the speaker, C7 capacitor is the supply voltage filter component, and C8 capacitor is the supply voltage biasing element and C6 capacitors are the frequency cut off component.

tda2030 bridge amplifier circuit components list

Quantity References Value
2 C1,C5 22uF
2 C2,C6 100uF
2 C3,C7 100nF
1 C4 0.22nF
1 C8 0.22uF
1 C9 2.2uF
5 R1-R2,R5-R6,R9 22k
2 R3,R7 680R
2 R4,R8 2R2
2 U1-U2 TDA2030
1 J1 output
1 J2 input
1 J3 +15
1 J4 -15
1 J5 GND

tda2030 bridge amplifier circuit PCB

tda2030 bridge amplifier circuit PCB
tda2030 bridge amplifier circuit PCB


tda2030 bridge amplifier circuit PCB
tda2030 bridge amplifier circuit PCB
tda2030 bridge amplifier circuit PCB
tda2030 bridge amplifier circuit PCB

TDA2030 amplifier with output driving transistor with PCB board project is a variant from the TDA2030 datasheet because at datasheet, we have different combination circuits using TDA2030 amplifier IC.

tda2030 with transistor  amplifier circuit diagram

When we consider this particular TDA2030 IC-based amplifier with an output transistor circuit, output wattage gets multiplied.

tda2030 with transistor Circuit operation

tda2030 with transistor Circuit
tda2030 with transistor Circuit

When we consider this type of circuits, it is a single power supply based and they have positive supply and ground terminal.

And transistor used at this circuit is basically PNP and NPN in combined to make a push-pull type amplifier. 

Moving on to the circuit operation, first, we have an input capacitor C1, it is for prevention of DC incoming towards TDA2030 IC through input that is pin1.

Next, we had a voltage divider arrangement, which consists of resistors R1, R2, and C2 capacitor they split the voltages into half then R3 resistor matches them.

We know, TDA2030 amplifier ICs produce a 14watt power, the output signal flow towards output terminal pin4.

At the same time transistor connected across pin5 and pin3 to form the push-pull arrangement, so R7, and R6 resistors pass current towards both positive and negative terminals, this will cause a strong current flow at the base of the transistors Q1 and Q2, then cutoff reaches and they work as the second stage amplifier, and at this point, power becomes higher.

R4 resistors are for closed-loop gain setting purpose, and C4 capacitors are for inverting decoupling and also R5 is our feedback element.

The C5, C3 capacitors are for the upper cut-off frequency that is, they fix a bandwidth frequency. C5 capacitors are the supply voltage bypassing element. 

Then D1, D2 diodes functional as the protection device against output voltage spikes.

Last we have R8 resistors and C7 capacitor combined to form a network for frequency stability, then C8 capacitor is the output capacitor, which is for noise reduction.

tda2030 with transistor Circuit components list

Quantity References Value
1 C1 10uF
1 C2 47uF
1 C3 2.2uF
1 C4 0.22uf
1 C5 1000uF
2 C6-C7 0.22uF
1 C8 2200uF
2 R1-R2 1R5
1 R3 30k
1 R4 3k3
3 R5-R7 56k
1 R8 1R
1 U1 TDA2030
1 Q1 TIP42
1 Q2 TIP41
2 D1-D2 1N4001
1 J1 input

tda2030 with transistor Circuit PCB

tda2030 with transistor Circuit with pcb
tda2030 with transistor Circuit with pcb
tda2030 with transistor Circuit pcb top mirror
tda2030 with transistor Circuit pcb top mirror
tda2030 with transistor Circuit pcb top
tda2030 with transistor Circuit pcb top
tda2030 with transistor Circuit with pcb top
tda2030 with transistor Circuit with pcb top


TDA2030 120 watt amplifier with PCB board

TDA2030 120watt bridge amplifier with PCB board is the project which produces 4 times than the usual output given from TDA2030 IC, this higher amount of power output is happened by two TDA2030 IC combined with the push-pull amplifier setup.

Circuit explanation

TDA2030 120 watt amplifier circuit
TDA2030 120 watt amplifier circuit

Consider 120watt bridge amplifier circuit, it is very complex in size, Compare to other TDA2030 amplifier projects, the power supply section works under dual power, so positive supply range starts from+6v to-6v and has a maximum of +18v to -18v, with the current input of 7amps.

TDA2030 IC section

When we start explaining circuit operation, IC1 is our input section at this portion we set an input impedance usingR3 resistor and pass into pin1 of IC1 and at the same time IC2,pin1 is grounded and directly.

AndPin2 of IC1 and R2 resistor combined to form the feedback unit, pin2 input connected to pin4 output, and the same at IC2, which here R12 is a feedback element to form a network.

Transistor section

Transistor section work as same as the full-bridge network at the inverter, Q1, Q3 transistors combined to form push-pull the arrangement, they control +ve part of the input signal and Q2, Q4 push-pull network control -ve portion of the signal.

Next, we have D1, D2, and D3, D4 diodes connected across each transistor, which is for protection against the output voltage spikes. 

Then R7, R11, and R1, R13 resistors are for setting a biasing voltage at each transistor and IC provide current flow towards positive and negative sides, then the voltage reaches the transistor network, it becomes ON and OFF to get proper output.

And last R5, R6 resistors leading towards C1 capacitor, they form a voltage divider circuit and thus C1 capacitor grounded the unwanted signals and C6 capacitors act as the decoupling component, which is for separation between two ICs.

How to signal

This particular Circuit amplify positive and negative half cycles of the input signal, that’s the reason why Circuits divided into two portions using both push-pull amplifier schematics.

TDA2030 120 watt amplifier circuit with pcb
TDA2030 120 watt amplifier circuit with pcb
TDA2030 120 watt amplifier circuit with pcb top
TDA2030 120 watt amplifier circuit with pcb top

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