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BRUTUS170W

ETC
Part Number BRUTUS170W
Manufacturer ETC
Description stereo power amplifier
Published Jun 17, 2014
Detailed Description USER MANUAL AX ELEKTRONIKA d.o.o. BRUTUS 170W / S stereo power amplifier BRUTUS - 170W/S is stronger brother of the po...
Datasheet PDF File BRUTUS170W PDF File

BRUTUS170W
BRUTUS170W

Overview
USER MANUAL AX ELEKTRONIKA d.
o.
o.
BRUTUS 170W / S stereo power amplifier BRUTUS - 170W/S is stronger brother of the popular BRUTUS - 100W/S power amplifier.
BRUTUS - 170W/S is operating in the bridge configuration, which ensures such a high output.
Thanks to IC TD A7294 manuf actured b y SGS or few Thompson (www.
st.
com) that you can buy f Euros you can make a compact 170W power amplifier.
It’s PCB measures just 5,5 x 21 cm.
TDA7294 is housed in Multiwatt 1 5 package and is intended for audio power amplifiers operating in class AB.
It’s usable in wide area of applications, from Home Cinema speak er systems to active speak ers, high-end T V se ts and of cour se home brew am plifier projects.
Due to it’ s large power supply voltage range is this IC capable of delivering large power to 4, 8 and 1 6 Ohms speakers.
TDA7294 has 100W output power at RL = 8 Ohms; VS = ± 38V , and 100W at RL = 4 Ohms; VS = ± 29V .
THD is lower than 0,1% at PO = 0.
1 to 50W and f = 20Hz to 20kHz.
De tailed information on power output and THD can be seen in diagrams.
Let us f irstly list basic dat a about TD A7249 in table 1.
Special attention should be paid f or the max.
power supply voltage which should not ex- ceed ± 49V.
In case that v oltage exceeds ± 49V your TDA7294 will silently burn out.
In the amplifier circuit are f our pieces of TD A7294.
It means that we might find out that all f our ICs are dead as Dodo! Take a look also at table 2, where technical data for TDA7294 are listed.
Another important issue is speak er impedance.
Speaker should ha ve min.
8 Ohms impedance.
Just for illustration, with Vss of just ± 25V and 8 Ohms speakers output po wer reaches 1 50W, while at Vss = ± 35V and 1 6 Ohms speaker we can reach output po wer of respect able 170W! You may ask yourself what can happen if instead of 8 Ohms speakers 4 Ohms ones are used? W ell, not much if TD A7294 is concer ned.
Amplif ier will deliver max.
output po wer to 4 Ohms speak ers limited time until ICs overheat.
Due ...


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