This part is a kind of semiconductor called AN8473SA.

Function of this product has Spindle motor driver IC for optical disk.

Manufacturers : Panasonic Semiconductor

Image and pinout :

Some of the text within the PDF file :

ICs for Compact Disc/CD-ROM Player AN8473SA Spindle motor driver IC for optical disk s Overview The AN8473SA is an optical disk driver IC, featuring direct PWM drive, DMOS power drive, low ON resistance of output power MOS and 120° of duty-factor. 32 11.0±0.3 17 Unit: mm 6.1±0.3 s Features • RON = 0.5 Ω (for both upper and lower) • 5 V single power source • Circuit current 7 mA (including step-up circuit current) 0.65±0.10 8.1±0.3 1 16 0.2–0.05 1.5±0.2 +0.10 (0.625) 0.65 0.3 –0.05 +0.10 s Applications • Optical disk Seating plane 0.65±0.10 0.1±0.1 (0.5) SSOP032-P-0300 VDD 16 14 13 Start 11 FG 10 H1H 7 H1L 6 H2H 5 H2L 4 H3H 3 H3L 2 VH 1 EC 8 ECR 9 PWMSW 30 Start/ stop Step-up voltage circuit OSC Thermal protection 12 VPUMP s Block Diagram B [ ... ]

AN8473SA PDF Datasheet Download