Originally posted by haenisch
I'm using a small heatsink (about 1x2x3 inch) for two TDA2030 without any
problems (doesn't even get warm with medium level output) so I suggest
that you (double) check your circuit (and layout). The 2030 tend to oscillate.
YEs HE is right check your circuit layout proper grounding is needed in case of 2030A else there is lot of oscillationa and ics becomes so hot.
IN general tda 2030a, tda2040a, tda 2050a tends to get hot easily and indeed they need a bulky heatsink
GUys dont compare them with other ic's these are different animals.