This part is a kind of semiconductor called TDA7073AT.

Function of this product has Dual BTL power driver.

Manufacturers : NXP

Image and pinout :

Some of the text within the PDF file :

INTEGRATED CIRCUITS DATA SHEET TDA7073A; TDA7073AT Dual BTL power driver Product specification Supersedes data of 1994 July File under Integrated Circuits, IC01 1999 Aug 30 Philips Semiconductors Product specification Dual BTL power driver FEATURES • No external components • Very high slew rate • Single power supply • Short-circuit proof • High output current (0.6 A) • Wide supply voltage range • Low output offset voltage • Suited for handling PWM signals up to 176 kHz • ESD protected on all pins. TDA7073A; TDA7073AT GENERAL DESCRIPTION The TDA7073A/AT are dual power driver circuits in a BTL configuration, intended for use as a power driver for servo systems with a single supply. They are specially designed for compact disc players and are capable of driving focus [ ... ]

TDA7073AT PDF Datasheet Download