This part is a kind of semiconductor called TDA7293.

Function of this product has DMOS audio amplifier.

Manufacturers : ST Microelectronics

Image and pinout :

Some of the text within the PDF file :

TDA7293 120-volt, 100-watt, DMOS audio amplifier with mute and standby Features „ Multipower BCD technology „ Very high operating voltage range (±50 V) „ DMOS power stage „ High output power (100 W into 8 Ω @ THD =10%, with VS = ±40 V) „ Muting and stand-by functions „ No switch on/off noise „ Very low distortion „ Very low noise „ Short-circuit protected (with no input signal applied) „ Thermal shutdown „ Clip detector „ Modularity (several devices can easily be connected in parallel to drive very low impedances) Description The TDA7293 is a monolithic integrated circuit in Multiwatt15 package, intended for use as audio Multiwatt15V Multiwatt15H class AB amplifier in Hi-Fi field applications, such as home stereo, self powered loudspeakers and Topclass TV. Thanks to the [ ... ]

TDA7293 PDF Datasheet Download