S3045 [KODENSHI]
4CH BTL Motor Drive IC; 4通道BTL马达驱动IC
| 型号： | S3045 |
| 厂家： | 
KODENSHI KOREA CORP. |
| 描述： | 4CH BTL Motor Drive IC |
| 文件： | 总14页 (文件大小：521K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
4CH BTL Motor Drive IC S3045
Semiconductor
http:// www.auk.co.kr
Description
The S3045 is a four-channels BTL motor driver for driving the
actuators and motors for products of DVD-P/R/RW.
It embrace a two channels of current feed-back BTL drivers.
those use current feed-back process to minimize the current phase
shift from the load inductance of actuators
It supports various applications with pb free and heat-sink package.
Application
◈CD-ROM
◈CD-RW
SSOPH-28N
With Heat-sink
◈DVD-PLAYER
◈DVD-ROM
◈DVD-RW
ORDERING INFORMATION
Features and Benefits
Product
S3045
Marking
S3045
Package
◈2 Channel are current feedback motor driver for actuators
◈2 Channels are voltage-type BTL drivers for sled and
loading motors.
SSOPH-28N
◈Separating power of SVcc and PVcc1,PVcc2 are to improve
power efficiency.
▲ Marking Detail Information
◈Built in Level shift circuit.
◈Built in Thermal shut down circuit.
◈Built in Standby mode.
S3045(①)
YYWW(②)
① Device Code
◈Dual Actuator drivers [ Current Feedback ]
The current feedback technique can reduce the current
phase shift caused By the load inductance of actuators
◈Sled motor driver
② Year & Week Code
A general OP-AMP connected to the input terminal helps
compute additions of differential inputs or signals.
◈Loading motor driver
Single input linear BTL driver. The output structure are two
power OP-AMPS in bridge configuration.
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SEPT., 2010 REV. 02
S3045
◈ Internal Block Diagram & Pin Assignment
Thermal
Shut down BY
STAND-
VI NFC
CFCerr 1
CFCerr 2
STBY
10k
20k
BI AS
7.5k
VI NTK
CTKerr 1
20k
10k
7.5k
VI NSL+
VI NSL-
V OSL
7.5k
CTKerr 2
7.5k
VI NL D
S GND
VNFFC
×2
10k
+ -
×2
10k
25k
SVcc
PVCC2
VNFTK
P GND
V OL D-
SVCC
PVCC1
P GND
- +
PVcc1
15k
V OSL-
V OSL+
SLED
DRIVER
LOADING
DRIVER
V OL D+
V OTK-
V OTK+
V OFC-
V OFC+
ACTUATOR
DRIVER
ACTUATOR
DRIVER
SVccPVcc2 PVcc1
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SEPT., 2010 REV. 02
S3045
◈ Pin Description
NO
SYMBOL
I/O
DESCRIPTION
1
VINFC
CFCerr1
CFCerr2
VINSL+
VINSL-
VOSL
I
Input for focus driver
2
I
Connect with capacitor for error amplifier.
Connect with capacitor for error amplifier.
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
3
I
4
I
5
I
6
O
7
VNFFC
SVCC
-
8
PWR
Supply voltage for pre-driver block and power block of sled
Supply voltage for power block of loading
GND for power block
9
PVcc1
PWR
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
PGND
-
VOSL-
VOSL+
VOFC-
VOFC+
VOTK+
VOTK-
VOLD+
VOLD-
PGND
O
Sled driver output (-)
O
Sled driver output (+)
O
Focus driver output (-)
O
Focus driver output (+)
O
Tracking driver output (+)
O
Tracking driver output (-)
O
Loading driver output (+)
O
Loading driver output (-)
-
GND for power block
VNFTK
PVcc2
I
Feedback for tracking driver
Supply voltage for power block of actuator
GND for pre-driver block
PWR
SGND
-
I
I
I
I
I
I
VINLD
CTKerr2
CTkerr1
VINTK
BIAS
Input for loading driver
Connect with capacitor for error amplifier.
Connect with capacitor for error amplifier.
Input for tracking driver
Input for reference voltage
STBY
Input for standby control
Symbol of + and – [ output of drives ] means polarity to input pin.
For example : if voltage level of pin1 is high, pin14 is high
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SEPT., 2010 REV. 02
S3045
◈ Absolute Maximum Ratings ( Ta = 25℃ )
Parameter
Symbol
Limits
Unit
Supply Voltage
SVCC/PVCC
15
V
Power Dissipation
Pd
1.7
W
℃
℃
Operate Temperature Range
Storage Temperature Range
Topr
Tstg
-35 ~ +85
-55 ~ +150
[ Note ] 1) When mounted on a 50mm×50mm×1mm PCB
2) Power dissipation reduces 20mW/℃for using above Ta=25℃
3) Do not exceed pd and SOA
◈ Guaranteed Operating Conditions ( Ta = 25℃ )
Parameter
Symbol
Limits
Unit
SVCC
4.5 ~ 13.2
4.5 ~ SVCC
V
V
Power Supply Voltage
PVCC1/ PVCC2
◈ Power Dissipation Curve [ Pd ]
◈50mm×50mm×1mm PCB
◈Power dissipation reduces 20mW/℃for using above Ta=25℃
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SEPT., 2010 REV. 02
S3045
◈ Electrical characteristics
( Unless otherwise specified Ta=25℃, SVcc=12V, PVcc1= PVcc2=5V, BIAS=2.5V,
RL1=RL2=RL3=RL4=12Ω, RD=0.5Ω, CFC=CTK=100pF)
Specification
NO
Characteristics
Symbol
Condition
Unit
MIN.
TYP.
MAX.
1
2
3
4
Quiescent Current
IQC
IST
-
15
27
mA
mA
V
Standby Circuit Current
Standby ON Voltage
Standby OFF Voltage
-
0
-
-
-
0.5
0.5
-
VSTON
VSTOFF
2.0
V
< Actuator Driver: Focus, Tracking >
5
Output Offset Current
Maximum Output Voltage
Transmission Gain
IOO
VOM
Gm
-15
3.6
1.3
-
4
15
-
mA
V
6
7
VIN=BIAS+0.1Vpp ac @1khz
1.5
1.7
dB
< Sled Motor Driver / Pre Op Amp >
OP AMP Input Common
Mode Voltage Range
8
VICM
IBOP
-0.3
-
11.0
300
0.3
V
nA
V
9
OP AMP Input Bias Current
30
0.1
OP AMP Low Saturation
Voltage
Maximum Output Source
Current
Maximum Output Sink
Current
10
VOLOP
-
0.3
1
11
12
ISO
ISI
0.5
-
-
-
mA
mA
< Sled Motor driver >
SVCC=5V
13 Output Offset Voltage
14 Maximum Output Voltage
15 Closed-loop Voltage Gain
< Loading Motor Driver>
16 Output Offset Voltage
17 Maximum Output Voltage
18 Closed-loop Voltage Gain
19 Gain Error by Polarity
VOOFSL
VOMSL
GVSL
-100
7.5
-
100
-
mV
V
9.0
20.0
VIN=BIAS+0.1Vpp ac @1khz
18.0
22.0
dB
VOOFLD
VOMLD
GVLD
-50
3.6
13.5
0
0
4.0
15.5
1
50
-
mV
V
VIN=BIAS+0.1Vpp ac @1khz
VIN=BIAS+0.1Vpp ac @1khz
17.5
2
dB
dB
ΔGVLD
KSD-I7A001-002
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SEPT., 2010 REV. 02
S3045
Equivalent Circuits
▣ Signal Input Stage
▣ OP-AMP Input Stage
BIAS
VINSL+
VINSL-
10K
VINFC
VINTK
VINLD
▣ Sense AMP Input Stage
▣ Error AMP Input Stage
SVcc
VNFFC
7.5K
CFCerr1
CTKerr1
VNFTK
10K
7.5K
20K
▣ BIAS Input Stage
▣ Stand-by Input Stage
All OFF
Stand-By
Power Amp
OFF
50K
BIAS
20K
50K
80K
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SEPT., 2010 REV. 02
S3045
Application Information
1. Thermal Shut Down Circuit
Actuators, Sled and
Loading motor
Bandgap Voltage
[ 1.25V ]
R2
R3
R4
R1
IHys
The built-in thermal shutdown circuit mutes turn off the output current when the chip temperature
reaches 175℃(typ.). The hysteresis is set to 25℃(typ.) by IHys,
so the circuit will start up again when the chip temperature falling down to 150℃(typ.)
2. Reference Input & Stand-by Function
•Reference input [ BIAS PIN : PIN 27 ]
The applied voltage at the reference input pin must be between 0.8V and 6.5V
( when SVcc=8.5V )
•Standby input [ PIN28 ]
The following input conditions must be satisfied for the standby function
Stand-by input voltage
Below 0.5V [ or Open ]
Above 2.0V
OPERATION
The stand-by function is activated so the bias block and power
block are disabled
Recover the normal operation
KSD-I7A001-002
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SEPT., 2010 REV. 02
S3045
3. Separation of Power Supply
■ SVCC
SVCC supplies power to the sled motor driver and the signal logic part ( SVCC ≥ PVCC1/PVCC2
)
■ PVCC1
PVCC1 is the power supply for the loading motor driver.
The recommend operating voltage range is between 4.3V~13.2V
■ PVCC2
PVCC2 is the power supply for the actuators that include focus and tracking motor drivers
The range is between 4.3V~13.2V
4. Current Feedback Channel [ Actuators ]
Current feedback AMP
Power AMP
20K
Actuator
10K
VIN
-
+
-
+
+
7.5K
Sensing resistor
-
+
-
ref
7.5K
×2
R
C
External
• The reference voltage is supplied externally through pin 27.
• The input OP-AMP output signal is amplified by (20K/10K) times and then fed to the current
feedback amplifier.
• The current feedback amplifier compares the output current sensed input and command input and
then makes the controlled output to eliminate delay effect of the load.
• The DC gain of current feedback amplifier and power amplifier is unity, which is 1 [A/V].
Users can change the gain by adding external resistor at the command input.
KSD-I7A001-002
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SEPT., 2010 REV. 02
S3045
5. Sled Driver Circuits [ with input OPAMP ]
Power AMP
25K
-
-
+
10K
-
+
M
+
+
-
ref
• The reference voltage is given externally through pin 27.
• The input OP-AMP can be used for several purpose, for example low pass filter, differential input
coordinator, gain scaler and so on.
6. Loading Driver Circuits [ BTL Motor Driver ]
15K
Power AMP
10K
-
+
-
+
M
+
-
ref
• The reference voltage is given externally through pin 27.
• The input OP-AMP output signal is amplified by (15K/10K) times and then fed to the power
Amplifier. The gain of power amplifier is 4; therefore, the total max gain of Loading driver is 6.
• Users must check input command range to use max output voltage because the total gain is
relatively smaller than other drivers.
KSD-I7A001-002
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SEPT., 2010 REV. 02
S3045
`
Characteristic Diagrams
Fig. 2 Temperature - IQC
Fig. 1 VCC - IQC
Fig. 3 VOM - IO
1
Fig.4 VOM - IO 2
Fig. 5 VOM - IO
3
Fig.6 OP VIN – OP VO (Buffer)
OP IN
OP OUT
V
(
)
KSD-I7A001-002
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SEPT., 2010 REV. 02
S3045
◈ Application Circuit
PVCC2
S3045
SVCC
PVCC1
KSD-I7A001-002
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SEPT., 2010 REV. 02
S3045
◈ Testing Circuit
100uH
R
D
R
L2
-
100pF
V
A
R
V
L4
I
O2
PVCC2
100uF
+
V
BIAS
V
ST
IN4
V
IN2
O4
V
O2
+
+
-
-
28
27
26
25
24
23
22
21
20
19
18
17
16
15
VOLD- VOLD+ VOTK- VOTK+
S3045
VOSL- VOSL+ VOFC-VOFC+
1
2
10
11
-
12
13
14
3
4
5
6
7
8
9
+
V
O3
V
O1
A
I
CC
V
IN3
I
O1
V
IN1
PVCC1
V
SVCC
100uF
VOP
100pF
R
D
R
L1
R
L3
100uH
KSD-I7A001-002
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SEPT., 2010 REV. 02
S3045
◈ Outline Dimension (Unit : mm)
SSOPH-28N
With Heat-sink
※ Recommend PCB solder land (Unit : mm)
KSD-I7A001-002
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SEPT., 2010 REV. 02
S3045
The AUK Corp. products are intended for the use as components in general electronic
equipment (Office and communication equipment, measuring equipment, home
appliance, etc.).
Please make sure that you consult with us before you use these AUK Corp. products
in equipments which require high quality and / or reliability, and in equipments which
could have major impact to the welfare of human life(atomic energy control, airplane,
spaceship, transportation, combustion control, all types of safety device, etc.). AUK
Corp. cannot accept liability to any damage which may occur in case these AUK Corp.
products were used in the mentioned equipments without prior consultation with AUK
Corp..
Specifications mentioned in this publication are subject to change without notice.
KSD-I7A001-002
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SEPT., 2010 REV. 02
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