Even supplied with 12V the peaks will exceed 25V in any case.ĭriving the TDA2003 at it's maximum performance you should plan for a good heat sink (e.g. ![]() It must be able to stand peaks up to 40V. Special care must be taken of the output electronic capacitor (pin4 to speaker). This is extremely important to avoid oscillations of the amplifier and resultant overheating.Īlso planning the circuit layout please follow the exact trace routing as given in the data sheet (page 6/10) to avoid any complications concerning oscillations.Īnd, of course (as already pointed out by Torben) for a stereo amplifier you must have two identical boards. Your schematic omits an extra 100♟ electrolytic capacitor for supply bypass. ![]() Please refer to the ST TDA2003 datasheet. High cost an amplifier project if you want to go ahead kck87 our friend minding 2200w amp circuit Proteus ares with PCBs have drawn 56 IRFP250 Mosfets use. (1A is a bit low, but might suffice for room volume settings - repetitive peak current is 3.5A) This audio amplifier circuit using the TDA2003 integrated circuit which has the same configuration and pinouts of the TDA2002. ![]() Using 2X15V the rectified and smoothened DC must not exceed 18V. You might choose either 2X11V or 2X15V for the supply transformer.
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