BA5954FP Datasheet, PDF (1/3 Pages) Rohm – Current feedback actuator driver

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.
Features
1) Wide dynamic range
VOM4.0V(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.
Dimension (Units : mm)
18.5 ± 0.2
28
15
1
14
5.15 ± 0.1
0.25 ± 0.1
0.8 _{0.35 ± 0.1}
0.08 M
16.0 ± 0.2
0.1 S
HSOP28 / HSOP-M28
Applications
CD/CD-ROM
Absolute Maximum Ratings (Ta=25˚C)
Parameter
Supply voltage
Symbol
Vcc, PVcc1/2
Power dissipation
Pd
Operating temperature range
Topr
Storage temperature range
Tstg
∗ 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
Limits
18
(BA5954FP) ∗1
1.7
–35 ~
–55 ~
(BA5954FM) ^∗2
2.2
+85
+150
Unit
V
W
˚C
˚C
Recommended Operating Conditions (Ta=25˚C)
Parameter
Symbol
Limits
Unit
VCC
4.3 ~ 13.2
V
Power supply voltage
PVCC1
4.3 ^~ Vcc
V
PVCC2
4.3 ~ Vcc
V