TDA1514A Audio Amplifier 50W

TDA1514A general description:

Here the very simple but powerful amplifier kit which built based on TDA1514A amplifier chip. The circuit is for single channel only, you should build two similar circuit for stereo application. A heatsink is a must to be attached on the IC TDA1514A. This circuit can be used as well as stereoamplifiers Bass in a 5.1 system. TDA1514A Audio Amplifier 50W

TDA1514A features:

• Battery operation
• Minimum external parts
• Wide supply voltage range: 4V–12V or 5V–18V
• Low quiescent current drain: 4mA
• Voltage gains from 20 to 200
• Ground referenced input
• Self-centering output quiescent voltage
• Low distortion: 0.2% (AV = 20, VS = 6V, RL = 8Ω, PO =
• 125mW, f = 1kHz)
• Available in 8 pin MSOP package

TDA1514A circuit:

TDA1514A Audio Amplifier 50W

TDA1514A layout:

Printed Circuit Layout and placement for mono 40 W amplifier:

TDA1514A Audio Amplifier 50W pcb

TDA1514A Audio Amplifier 50W layout 

Printed Circuit Layout and placement for sterio 2 x 40 W amplifier.

stereo pcb

stereo layout

TDA7375 Audio Amplifier 2x35W

TDA7375 general description:

Circuit of quadruple audio amplifier using integrated circuit TDA7235 for systems surround. Circuit of quadruple amplifier for systems surround using the ci tda7375, for potency of 7 watts for channel in the version amplifying quad or 15 watts in the dual version (stereo). could arrive to 35 watts in the version.TDA7235 is a circuit integrated amplifier quadruple audio amplifier class AB capable to work in double bridge or simple quadruple amplifiers, circuit integrated with protection system of short, it requests the minimum of external components, available in multiwat 15H (TDA7375H) and multiwat 15V (TDA7375V). Although the first conception went to automotives pplications , to give him/it in a great variety of applications of low potency. That integrated circuit is ideal in the situation in that is wanted a reasonable potency and with a Power tension relatively low for your operation. That circuit drawn below it uses the basic configuration of quadruple amplifier, but using a configuration in bridge, it can be obtained about 4 times the maximum potency. In that configuration of quadruple amplifier it can be used as amplifier end of systems surround, when 7 watts for channel are already a good potency, using the minimum of components.Operation of the circuit of the audio amplifier with tda7375 The capacitor C8 uncouples the internal tension divisor. The capacitors C5 and C6 are the filter for Power supply. The capacitors of 2200µF / 25V are the exit capacitors. Vs is the Power supply that can be a car battery or a supply of 14 volts. Power supply for the circuit It can be with a transformer 12V/30VA, a rectifier bridge and a capacitor electrolytic of 4700µF or (larger). The maximum consumption of current with loads of 4Ohms is 2.1 A. You can use loads of 2 ohms, but he/she also remembers to increase the size of the of heat-sink, because the circuit integrated in Multiwat package it will heat up a little more. Suggestion of printed circuit board side of the copperSuggested PCB for mounting the amplifier tda7375, component side Information about mounting circuit audio amplifier. When assembling the circuit remember that this quad amplifier channels features two four inverted, then it should connect the speakers in reverse polarity at such times, attention to the polarity of electrolytic capacitors that should be of good quality. Before welding the tda7375 remember to solder the jumper, which will be underneath the integrated. TDA7375 Audio Amplifier 2x35W

TDA7375 features:

• HIGH OUTPUT POWER CAPABILITY:

– 2 x 40W max./4
– 2 x 35W/4 EIAJ
– 2 x 35W/4 EIAJ
– 2 x 25W/4 @14.4V, 1KHz, 10%
– 4 x 7W/4 @14.4V,1KHz, 10%
– 4 x 12W/2 @14.4V, 1KHz, 10%

• MINIMUM EXTERNAL COMPONENTS 

COUNT:
– NO BOOTSTRAP CAPACITORS
– NO BOUCHEROT CELLS
– INTERNALLY FIXED GAIN (26dB BTL)

• ST-BY FUNCTION (CMOS COMPATIBLE)
• NO AUDIBLE POP DURING ST-BY OPERATIONS

• DIAGNOSTICS FACILITY FOR:

– CLIPPING
– OUT TO GND SHORT
– OUT TO VS SHORT
– SOFT SHORT AT TURN-ON
– THERMAL SHUTDOWN PROXIMITY

TDA7375 circuit diagram:

Double Bridge TDA7375

Quad SterioTDA7375

SterioBridge TDA7375

TDA7375 layout:

pcb layout

pcb layout

TA8210AH Audio Amplifier 2x22W

TA8210AH general description:

     It's amizing circuit work beautiful. Is desination for audio amplification, for car. This is a circuit of 2 x 22 watt BTL amplifier using IC TA8210AH. It is not only an auto amplifier, ideal for a low-frequency auditory approach those hi-fi, with a very good linear feature. Can be fueled by a 12 volt car battery but shi from a 12 volt charger. The chip incorporates four bridge amplifiers available in two by two in order to ensure the output 22 watts per channel on 4 ohms. TA8210AH Audio Amplifier 2x22W

TA8210AH features:

• Peak supply voltage (0.2s): 50 V
• supply voltage VCC (DC): 25 V
• Operating supply voltage VCC (opr): 18 V
• Output current (peak): 9 A
• Power dissipation PD: 50 W
• Operating temperature: 30~85 °C
• Storage temperature: 55~150 °C

TA8210AH circuit diagram:

TA8210AH Audio Amplifier 2x22W

TA8210AH layout:

Layout TA8210AH Audio Amplifier 2x22W

PCB TA8210AH Audio Amplifier 2x22W

TDA2005 Audio Amplifier 2x10w

TDA2005 description:

The TDA2005 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  in stereo  applications) obtaining an output power of more than 20 W (bridge configuration). TDA2005 Audio Amplifier 2x10w

TDA2005 features:

High output power:
Po = 10 + 10 W @ RL = 2 , THD = 10 %
Po = 20 W @ RL = 4 , THD = 10 %.
Protection against:
Output DC and AC short circuit to ground
Overrating chip temperature
Load dump voltage surge
Fortuitous open ground
Very inductive loads
Loudspeaker protection during short circuit for one wire to ground

TDA2005 circuit diagram:

TDA2005 Audio Amplifier 2x10w

TDA2005 layout:

PCB TDA2005 Audio Amplifier 2x10w

Layout TDA2005 Audio Amplifier 2x10w

20W+20W+20W Amplifier Circuit diagram

Overview The STK400-030 is a 3-channel AF power amplifier IC supporting multichannel speakers. One package includes 20W×3ch for Lch, Rch and Cch. It is pin compatible with both 3-channel output devices (STK400-*00 series) and 2- channel output devices (STK401-*00 series). The output load impedance is 6/3Ω.

20W+20W+20W Amplifier Circuit diagram

Audio Amplifier for Car Radio TDA7374B

Description:

The TDA7374B is a new technology class AB Audio Dual Bridge Power Amplifier in Multiwatt package designed for car radio applications. Thanks to the fully complementary PNP/NPN output configuration the high power performances of the TDA7374B are obtained without bootstrap capacitors.

Circuit diagram:

Audio Amplifier for Car Radio TDA7374B

3-channel 80 Watt audio amplifier circuit diagram

3-channel 80 Watt audio amplifier circuit diagram