This part is a kind of semiconductor called TDA7375AV.

Function of this product has 2 x 37W DUAL/QUAD POWER AMPLIFIER FOR CAR RADIO.

Manufacturers : ST Microelectronics

Image and pinout :

Some of the text within the PDF file :

® TDA7375A 2 x 37W DUAL/QUAD POWER AMPLIFIER FOR CAR RADIO HIGH OUTPUT POWER CAPABILITY 2 x 43W/4Ω MAX 2 x 37W/4Ω EIAJ 2 x 26W/4Ω @14.4V, 1KHz, 10% 4 x 7W/4Ω @14.4V, 1KHz, 10% 4 x 12W/2Ω @14.4V, 1KHz, 10% MINIMUM EXTERNAL COMPONENTS COUNT: – NO BOOTSTRAP CAPACITORS – NO BOUCHEROT CELLS – INTERNALLY FIXED GAIN (26dB BTL) ST-BY FUNCTION (CMOS COMPATIBLE) NO AUDIBLE POP DURING ST-BY OPERATIONS DIAGNOSTIC FACILITIES – CLIP DETECTOR – OUT TO GND SHORT – OUT TO VS SHORT – SOFT SHORT AT TURN-ON – THERMAL SHUTDOWN PROXIMITY Protections: OUPUT AC/DC SHORT CIRCUIT – TO GND BLOCK DIAGRAM Multiwatt15 V ORDERING NUMBERS: TDA7375AV TDA7375AH – TO VS – ACROSS THE LOAD SOFT SHORT AT TURN-ON OVERRATING CHIP TEMPERATURE WITH SOFT THERMAL LIMITER LOAD DUMP VOLTAGE SURGE V [ ... ]

TDA7375AV PDF Datasheet Download