Current feedback actuator driver
BA5954FP/FM
Description
Dimension (Units : mm)
Features
Applications
Absolute Maximum Ratings
(Ta=25C)
PCB (70mmx70mm, t=1.6mm) glass epoxy mounting.
1 Derating : 13.6mW/C for operation above Ta=25C
2 Derating : 17.6mW/C for operation above Ta=25C
HSOP28 / HSOP-M28
18.5 0.2
7
.
5
0
.
2
9
.
9
0
.
3
28
15
1
14
2
.
2
0
.
1
0.35 0.1
5.15 0.1
0
.
5
0
.
2
0.8
0.25 0.1
16.0 0.2
0
.
1
1
0.1 S
0.08
M
CD/CD-ROM
Supply voltage
Power dissipation
Operating temperature range
Storage temperature range
Parameter
Symbol
Limits
Unit
Vcc, PVcc1/2
Pd
Topr
Tstg
18
(BA5954FP)
1.7
(BA5954FM)
2.2
+
85
+
150
35
55
~
~
W
C
C
V
1
2
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.
1) Wide dynamic range
V
OM
4.0V(typ.) at PreVcc=12V,PVcc=5V,RL=8
2) Level shift circuit built in.
3) Thermal-shut-down circuit built in.
4) Stand-by mode built in.
Power supply voltage
V
CC
~
4.3
13.2
V
PV
CC
1
PV
CC
2
~
4.3
Vcc
V
~
4.3
Vcc
V
Parameter
Unit
Limits
Symbol
Recommended Operating Conditions
(Ta=25C)
Electrical characteristics
(Unless otherwise noted; Ta=25C, Vcc=12V, PVcc1=PVcc2=5V, BIAS=2.5V, RL=8, Rd=0.5, C=100pF)
Application Circuit
Quiescent current
I
cc
-
-
-
-6
3.6
1.3
2.0
-0.3
-
-
1
0.3
18
-
-
-
-
-
4.0
1.5
1.7
-
-
30
0.1
0.5
27
0.5
0.5
6
-
11.0
300
0.3
-
-
mA
mA
mV
V
A/V
V
V
V
IN
=BIAS0.2V
V
IN
=0.2V
V
V
V
dB
nA
Ist
V
STON
V
STOFF
I
OO
V
OM
gm
V
ICM
I
BOP
V
OLOP
I
SO
I
ST
Stand-by quiescent current
Voltage for stand-by ON
Voltage for stand-by OFF
Output offset voltage
Maximum output amplitude
Trans conductance
Common mode input range
Input bias current
Low level output voltage
Output source current
Output sink current
-100
7.5
18.0
0
9.0
20.0
22.0
100
-
mV
mA
mA
V
OOFSL
V
OMLD
G
VSL
Output offset voltage
Maximum output voltage
Closed loop voltage gain
<Actuator driver>
<Sled motor driver/Pre OP-amp>
Symbol
Min.
Max.
Unit
Conditions
Typ.
Parameter
<Sled motor driver>
V
IN
=BIAS0.2V
V
dB
-50
3.6
13.5
0
4.0
15.5
17.5
50
-
mV
V
OOFLD
V
OMLD
G
VLD
Output offset voltage
Maximum output voltage
Closed loop voltage gain
<Loading motor driver>
V
IN
=BIAS0.2V
dB
0
1
2
G
VLD
Gain error by polarity
This product is not designed for protection against radioactive rays.
DSP
-
COM
M
28
27
26
24
23
22
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
7
8
10
11
12
13
14
7.5K
20K
10K
Loading
Driver
25
26
9
Stand
-by
x2
Actuator
Driver
10K
15K
Thermal
Shut down
Sled
Driver
Actuator
Driver
x2
10K
20K
7.5K
7.5K
10K
25K
Det. Amp.
Det. Amp.
Vcc PVcc1 PGND
PVcc2
PGND
PerGND
7.5K
PVcc1
Vcc
PVcc2
12V
5Vor12V
Sled
Motor
Focus
Coil
Rd
M
Loading
Motor
Tracking
Coil
Rd
5Vor12V
S
l
e
d
F
o
c
u
s
T
r
a
c
k
i
n
g
V
c
e
n
t
e
r
S
t
a
n
d
-
b
y
L
o
a
d
i
n
g
Appendix
Appendix1-Rev1.0
The products listed in this document are designed to be used with ordinary electronic equipment or devices
(such as audio visual equipment, office-automation equipment, communications devices, electrical
appliances and electronic toys).
Should you intend to use these products with equipment or devices which require an extremely high level of
reliability and the malfunction of with would directly endanger human life (such as medical instruments,
transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other
safety devices), please be sure to consult with our sales representative in advance.
Notes
No technical content pages of this document may be reproduced in any form or transmitted by any
means without prior permission of ROHM CO.,LTD.
The contents described herein are subject to change without notice. The specifications for the
product described in this document are for reference only. Upon actual use, therefore, please request
that specifications to be separately delivered.
Application circuit diagrams and circuit constants contained herein are shown as examples of standard
use and operation. Please pay careful attention to the peripheral conditions when designing circuits
and deciding upon circuit constants in the set.
Any data, including, but not limited to application circuit diagrams information, described herein
are intended only as illustrations of such devices and not as the specifications for such devices. ROHM
CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any
third party's intellectual property rights or other proprietary rights, and further, assumes no liability of
whatsoever nature in the event of any such infringement, or arising from or connected with or related
to the use of such devices.
Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or
otherwise dispose of the same, no express or implied right or license to practice or commercially
exploit any intellectual property rights or other proprietary rights owned or controlled by
ROHM CO., LTD. is granted to any such buyer.
Products listed in this document use silicon as a basic material.
Products listed in this document are no antiradiation design.
About Export Control Order in Japan
Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control
Order in Japan.
In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause)
on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction.
PDF 
ZIP