Current feedback actuator driver
BA5954FP/FM
Description
BA5954FP/FM is an actuator driver IC for CD-ROM
and DVD players. This actuator driver adopts current
feedback system. This IC incorporates 2 channel
actuator drivers and 2 channel motor drivers.
Current phase lag influenced load inductance is little,
because this type is current feedback.
Dimension (Units : mm)
28
18.5
±
0.2
15
9.9
±
0.3
7.5
±
0.2
1
5.15
±
0.1
0.8 0.35
±
0.1
0.08
M
16.0
±
0.2
14
0.25
±
0.1
2.2
±
0.1
Features
1) Wide dynamic range
V
OM
4.0V(typ.) at PreVcc=12V,PVcc=5V,RL=8Ω
2) Level shift circuit built in.
3) Thermal-shut-down circuit built in.
4) Stand-by mode built in.
0.11
0.1 S
HSOP28 / HSOP-M28
Applications
CD/CD-ROM
Absolute Maximum Ratings
(Ta=25˚C)
Parameter
Supply voltage
Power dissipation
Operating temperature range
Storage temperature range
∗
PCB (70mmx70mm, t=1.6mm) glass epoxy mounting.
∗1
Derating : 13.6mW/˚C for operation above Ta=25˚C
∗2
Derating : 17.6mW/˚C for operation above Ta=25˚C
Symbol
Vcc, PVcc1/2
Pd
Topr
Tstg
1.7
Limits
18
(BA5954FP)
∗1
(BA5954FM)
∗2
Unit
V
W
2.2
+
85
–
35
–
55
~
~
+
150
˚C
˚C
Recommended Operating Conditions
(Ta=25˚C)
Parameter
Symbol
V
CC
Power supply voltage
PV
CC
1
PV
CC
2
4.3
4.3
4.3
Limits
~
~
~
Unit
13.2
Vcc
Vcc
V
V
V
0.5
±
0.2
ROHM [ ROHM ]
