ICs for Motor
1
AN8481SB
Spindle motor driver IC for optical disk
n Overview
The AN8481SB is a high performance IC suited
for driving a spindle motor of an optical disk such
as CD-ROM, PD, DVD, CD-R, CD-RW, etc.
n Features
• Adopting the 3-phase full-wave soft switch sys-
tem
• With switching regulator control function
• With start and stop pin
• Reverse breaking by EC/ECR voltage
• With Hall bias pin
• Surface-mount small package
n Applications
• High speed CD-ROM drive
• PD, DVD, CD-R, CD-RW drives
Unit: mm
HSOP042-P-0400
17 814
(1.315)
0.65±0.20
28 22 21
(4.8)
(6.4)(1.2)
(5.15)
18.4±0.2
8.3±0.2
2.7±0.2
0.1±0.1
10.93±0.30
15
0.35
+0.10
–0.05
0.30
+0.10 –0.05
0.8 Seating plane
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