AN8470NSA Datasheet, PDF (1/8 Pages) Panasonic Semiconductor – Spindle motor driver IC for optical disk

ICs for Compact Disc/CD-ROM Player
AN8470NSA
Spindle motor driver IC for optical disk
s Overview
The AN8470NSA 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.
s Features
• Low power consumption due to a direct PWM
system
• With start and stop pin
• Reverse breaking by EC/ECR voltage
• With Hall bias pin
• Surface-mount small package
s Applications
• High speed CD-ROM drive
PD, DVD, CD-R, CD-RW drives
s Block Diagram
11.0±0.3
32
17
1
16
(0.625)
0.65
0.3
+0.10
–0.05
Seating plane
SSOP032-P-0300
Unit: mm
0.2^{+–00..0150}
(0.5)
7
Start
Start/stop
24
FG
Step-up voltage circuit
OSC
Thermal
protection
23
H1H
22
H1L
21
H2H
19
H2L
18
H3H
17
H3L
VH ⁸
Hall amp.
matrix
Hall
bias
Distributor
circuit
Amp.
Amp.
Output
circuit
PWMOUT
27
EC
V_T
26
ECR
25
FC
Oscillator
SSET
FF
SRESET
PNFOUT _{× 5}
V_CL
32
VM2
3 _A1
1 _A2
31 _A3
2 _RNF2
30 _RNF1
10 _GND
1