BRUTUS170S Datasheet | Unknown Manufacturer

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 (.st.) that you can buy f Euros you can make a pact 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 20k Hz. 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....