This part is a kind of semiconductor called BA6219BFP-Y.
Function of this product has 2.0A or More Reversible Motor Drivers.
Manufacturers : Rohm
Image and pinout :

Some of the text within the PDF file :
Reversible Motor Drivers for Brush Motors 2.0A or More Reversible Motor Drivers (Single Motor) BA6219BFP-Y,BA6222 No.11008EBT03 ●Description These motor drivers are full bridge drivers for brush motor applications, supporting output currents of up to 2A. The output modes are available in four modes, normal, reverse, stop (idling), and braking in accordance with input logic (2 inputs). The output voltage can be optionally set by reference voltage setting pin. ●Features 1) Large output current (lOMAX=2.2A) 2) Built-in thermal shutdown circuit 3) Output voltage can be optionally set by reference voltage setting pin 4) High output voltage can be set by low voltage input because of it has 11.4dB gain (BA6222) 5) Low standby current ●Applications Audio-visual equipment; PC peripherals; [ ... ]
BA6219BFP-Y PDF Datasheet Download
