This part is a kind of semiconductor called BA5974FP.

Function of this product has BA5974FP / BTL.

Manufacturers : Rohm

Image and pinout :

Some of the text within the PDF file :

IC w w CD h S BA5974FP a at .D w BA5974FP CD 3ch ! CD/MD CD-ROM t e e 4U m o .c 4ch BTL 4ch LSI PWM 1 BTL BA5974FP ! 1) 4ch BTL 2) HSOP28 3) 3ch PWM 4) 5) 6) 1 RC PreVCC=8V PowVCC=8V RL=8Ω ! Ta=25°C ! w w w t a .D S a e h U 4 t e 5.6V Typ. .c m o w w w .D a S a t e e h U 4 t m o .c BA5974FP IC ! 28 27 26 25 24 23 22 21 20 19 18 17 16 15 10k Pre Vcc 100k F INTERFACE F LEVEL SHIFT Pow 50k Vcc Vref THERMAL SHUTDOWN 50k R R 190k MUTE 50k Pow 50k Vcc INTERFACE F R F R INTERFACE F R F R Pow Vcc 1 2 3 4 5 6 7 8 9 10 11 12 13 14 BA5974FP IC ! BA5974FP IC ! 7.3k ch1 3 2,5,24pin ch1 3 3,6,23pin 17k 17k 10k 9pin 20k 50k 11 18pin 50k 10k 20pin 50k 50k 1pin 26pin 17k 100k ch1 3 4,7,22pin 25pin 10k 27pin BA5974FP IC ! [ ... ]

BA5974FP PDF Datasheet Download