4-Channel BTL Motor Driver for CD-ROM
Features
˙CMD5954
is a 4 channel driver for cptical disc
motor driver. Dual channel current feedback
type drivers are built in, in addition to dual
channel motor driver.
˙Separating
Vcc into Pre-power of sled motor,
Power of loading motor and Power of actuator,
can make batter power efficiency, by low
supply voltage drive.
˙Stand-by
mode built in.
˙Thermal
shutdown circuit on chip.
CMD5954
Description
The CMD5954 is a 4-channel BTL driver IC for
driving the motors and actuators in products
such as CD-ROM/DVD-ROM/DVD-Player
drives. Two of the channels use current feedback
to minimize the current phase shift caused by the
influence of load inductance.
Applications
CD-ROM drives, DVD drives, DVD-ROM
drives.
Block Diagram
* All specs and applications shown above subject to change without prior notice.
1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN, R.O.C
Email: server@ceramate.com.tw
Tel:886-3-3214525
Http: www.ceramate.com.tw
Page 1 of
9
Rev 1.1 Aug. 5,2002
Fax:886-3-3521052
4-Channel BTL Motor Driver for CD-ROM
Pin Descriptions
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Pin name
VINFC
CFCerr1
CFCerr2
VINSL +
VINSL -
VOSL
VNFFC
Vcc
PVcc1
PGND
VOSL -
VOSL +
VOFC -
VOFC +
VOTK +
VOTK -
VOLD +
VOLD -
PGND
VNFTK
PVcc2
GND
VINTK
CTKerr2
CTKerr1
VINTK
BIAS
MUTE
Function
Focus drive input
For connection of capacitor for the error amp filter
For connection of capacitor for the error amp filter
Op-amp input (+) for the sled driver
Op-amp input (-) for the sled driver
Op-amp output for the sled driver
Focus driver feedback pin
Vcc
Power Vcc for sled driver block
Ground for Sled driver block
sled driver output (-)
sled driver output (+)
Focus driver output (-)
Focus driver output (+)
Tracking driver output (+)
Tracking driver output (-)
Loading driver output (+)
Loading driver output (-)
Ground for Actuator driver block
Tracking driver feedback pin
Power Vcc for Actuator driver block
Ground
Loading driver input
For connection of capacitor for the error amp filter
For connection of capacitor for the error amp filter
Tracking driver input
Bias input
Mute control
CMD5954
Notes: The indicated polarities for the output pins are for when all inputs are (+).
The output H bridge supply pins are PVcc1 for the loading channel, PVcc2 for the focus, tracking
channels, and Vcc for the pre-block and sled channel. Always ensure that Vcc≧PVcc1,2.
PinOut
CMD5954
* All specs and applications shown above subject to change without prior notice.
1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN, R.O.C
Email: server@ceramate.com.tw
Tel:886-3-3214525
Http: www.ceramate.com.tw
Page 2 of
9
Rev 1.1 Aug. 5,2002
Fax:886-3-3521052
4-Channel BTL Motor Driver for CD-ROM
Absolute maximum ratings (Ta = 25
o
C)
Parameter
Power supply voltage
Power dissipation
Operating temperature
Storage temperature
Symbol
V
CC
、PVcc1,2
P
d
T
opr
T
stg
Limits
13.5
1.7
*
-35~+85
-55~+150
unit
V
W
o
C
o
C
CMD5954
﹡Reduce
by 13.6 mW for each increase in T
a
of 1
o
C over 25
o
C.
When mounted on a 70mm
×
70mm
×
1.6 mm glass epoxy board.
Recommended operating conditions (Ta = 25
o
C)
Parameter
Power supply voltage
Symbol
Vcc
PVcc1
PVcc2
Limits
4.5~13.2
4.5~Vcc
4.5~Vcc
unit
V
V
V
Electrical characteristics
(
unless otherwise noted, Ta = 25
o
C, V
CC
= PV
CC1
=12V, PV
CC2
=5V, VBIAS=2.5V, R
L1
= R
L2
=8Ω, R
L3
= R
L4
=15Ω
)
Parameter
Symbol Min.
Quiescent current
I
CC
-
Stand-by quiescent current
I
ST
-
Voltage for Stand-by ON
V
STON
0
Voltage for Stand-by OFF
V
STOFF
2.0
<Actuator driver>
Output offset current
I
O1,2
-6
Maximum output amplitude
V
O1,2
3.6
Trans conductance
Gm
1.3
<Sled motor driver/Pre OP-amp>
Common mode input range
V
ICM
-0.3
V
ICM
-0.3
Input bias current
I
BOP
-
Low level output voltage
V
OLOP
-
Output source current
I
SO
0.3
Output sink current
I
SI
1
<Sled motor driver>
Output offset voltage
V
OFFSL
-100
Maximum output voltage
V
O3
7.5
Closed loop voltage gain
G
VSL
18.0
<Loading motor driver>
Output offset voltage
V
OFFLD
-50
Maximum output voltage
V
O4-1
7.5
Maximum output voltage
V
O4-2
3.6
Closed loop voltage gain
Gain error by polarity
G
VLD
ΔG
VLD
13.5
0
Typ.
18
-
-
-
-
4.0
1.5
-
-
30
0.1
0.5
-
0
9.0
20.0
0
9.0
4.0
15.5
1
Max.
27
0.5
0.5
-
6
-
1.7
11.0
4.0
300
0.3
-
-
100
-
22.0
50
-
-
17.5
2
Unit
mA
mA
V
V
Conditions
mA
V V
IN
= VBIAS
±
1.5V
A/V V
IN
= VBIAS
±
0.2V
V
V
nA
V
mA
mA
mV
V
dB
mV
V
V
dB
dB
VBIAS =6 V
Vcc=PVcc1=5V
V
IN
= VBIAS
±
1.5V
V
IN
= VBIAS
±
0.2V
V
IN
= VBIAS
±
1.5V
V
IN
= VBIAS
±
1.5V
Vcc=PVcc1=5V
V
IN
= BIAS
±
0.2V
V
IN
= BIAS
±
0.2V
*This product is not designed for protection against radioactive rays.
* All specs and applications shown above subject to change without prior notice.
1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN, R.O.C
Email: server@ceramate.com.tw
Tel:886-3-3214525
Http: www.ceramate.com.tw
Page 3 of
9
Rev 1.1 Aug. 5,2002
Fax:886-3-3521052
4-Channel BTL Motor Driver for CD-ROM
Typical Curve
CMD5954
* All specs and applications shown above subject to change without prior notice.
1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN, R.O.C
Email: server@ceramate.com.tw
Tel:886-3-3214525
Http: www.ceramate.com.tw
Page 4 of
9
Rev 1.1 Aug. 5,2002
Fax:886-3-3521052
4-Channel BTL Motor Driver for CD-ROM
CMD5954
* All specs and applications shown above subject to change without prior notice.
1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN, R.O.C
Email: server@ceramate.com.tw
Tel:886-3-3214525
Http: www.ceramate.com.tw
Page 5 of
9
Rev 1.1 Aug. 5,2002
Fax:886-3-3521052
FPGA/CPLD
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