ST1151A
Version
Issue Date
File Name
Total Pages
: A.004
: 2004/09/03
: SP-ST1151A-A.004.doc
:7
Low-saturation, Low-voltage
1.5 Channel Bi-directional Motor Driver
SILICON TOUCH TECHNOLOGY INC.
新竹市科學園區展業一路九號七樓之一
9-7F-1 Prosperity Road I Science-Based Industrial Park
Hsinchu, Taiwan 300, R.O.C.
Tel：886-3-5645656 Fax：886-3-5645626
點晶科技股份有限公司
ST1151A
SILICON TOUCH TECHNOLOGY INC.
ST1151A
Low-saturation, Low-voltage
1.5 Channel Bi-directional Motor Driver
General Specifications
The device is a 1.5-channel low-saturation bi-directional motor driver IC. The design is
optimal for motor applications, such as cameras, printers, FDDs, or other portable devices with
forward, reverse, bake and stand-by function.
Features and Benefits
z
Low voltage operation ( VDD Min = VSMin
z
Low saturation voltage ( Upper transistor + low transistor residual voltage; 0.4V typ. at
300mA , VDD = VS = 3V)
Low input current
Brake function
High output sinking and driving capability
Thin, highly reliable package (SOP-8, MSOP8)
z
z
z
z
= 1.5V )
Pin Assignment
VS
O2
O1
IN2
IN3
VDD
GND
IN1
Pin NO.
Pin Name
1
VS
Power supply pin for output driver
2
O1
Output sinking / driving pin
3
IN3
Input pin 3 that determines driving mode
4
GND
5
IN1
Input pin 1 that determines driving mode
6
VDD
Power supply pin for controller.
7
IN2
Input pin 2 that determines driving mode
8
O2
Output sinking / driving pin
SP-ST1151A-A.004
Description
Ground pin
Version：A.004
Page：1
點晶科技股份有限公司
ST1151A
SILICON TOUCH TECHNOLOGY INC.
Absolute Maximum Ratings ( Unless otherwise noted, TA= 25℃ )
Characteristic
Symbol
Rating
Unit
VDD
5.5
V
VS
5.5
V
VIN
VDD+0.4
V
IO Peak Current
IOPeak
2
A
IODC Current
IODC
0.75
A
Power Dissipation(SOP8)
PD-SOP
680
mW
Power Dissipation(MSOP8)
PD-MSOP
480
mW
Operating Temperature Range
TOPR
-40 ~ 125
°C
Storage Temperature Range
TSTG
-65 ~ 150
°C
Supply Voltage
Input Voltage
Electrical Characteristic
(Unless otherwise noted, TA= 25℃ & VDD = VS = 3V )
Characteristic
Supply Voltage
Sym.
Condition
Limit
Unit
Min.
Typ.
Max.
VDD
1.5
3
5.5
V
VS
1.5
3
5.5
V
Supply Current
IDD0
VIN1, IN2, IN3 = 0V
0.5
10
μA
( IDD + IS )
IDD1
VIN1, IN2, IN3 = 3V
1
10
μA
IN1 / IN2 / IN3 Input Terminal ( TJ = 25℃)
Input Voltage “H”
VIH
-
0.8*VDD
-
VDD+0.
4
V
Input Voltage “L”
VIL
-
-0.4
-
0.2*VDD
V
Input Current “H”
IIH
VIN = VDD
-
-
±5
μA
Input Current “L”
IIL
VIN = 0 V
-
-
±5
μA
O1 / O2 Output Terminal ( TJ = 25℃)
Output Voltage
(upper + lower)
Output Sustaining
Voltage
VOUT1
IOUT = 200 mA
-
0.3
0.45
V
VOUT2
IOUT = 300 mA
-
0.5
0.7
V
VOUT3
IOUT = 600 mA
-
0.9
1.0
V
VO(SUS) IOUT = 400 mA
-
-
VS
V
SP-ST1151A-A.004
Version：A.004
Page：2
點晶科技股份有限公司
ST1151A
SILICON TOUCH TECHNOLOGY INC.
Truth Table
Input Signal
Output Driver
Mode
IN1
IN2
IN3
O1
O2
H
L
L
H
L
M1Forward
L
H
L
L
H
M1Reverse
H
H
L
H
H
M1Brake
L
L
L
OFF
OFF
Standby
H
L
H
OFF
H
M2 Operation
L
H
H
OFF
L
M2 Operation
H
H
H
OFF
H
M2 Operation
Block Diagram & Application Circuit
VDD
6
IN1
1μF
VS
1
5
O1
2
IN2
7
IN3
3
Control
M1
8
O2
M2
GND
SP-ST1151A-A.004
4
Version：A.004
Note. To select M2 operating,
the external driver is
required.
Page：3
點晶科技股份有限公司
ST1151A
SILICON TOUCH TECHNOLOGY INC.
Application Notes
In multiple power supply application, the voltage of VDD pin must lager than or equal to the
voltage of VS pin.
The power dissipated by the IC varies widely with the supply voltage, the output current, and
loading. It is important to ensure the application does not exceed the allowable power
dissipation of the IC package. The recommended motor driver power dissipation versus
temperature is depicted as follows:
Power Dissipation-Temperature
Power Dissipation ( mW )
800
750
700
650
600
550
500
450
400
350
300
250
200
150
100
50
0
SOP8
MSOP8
0
SP-ST1151A-A.004
25
50
75
100
Ambient Temperature ( ℃ )
Version：A.004
125
Page：4
點晶科技股份有限公司
ST1151A
SILICON TOUCH TECHNOLOGY INC.
Package Specifications
SOP8 : ST11151A_TSP1
( 8-pin SOP )
ST1151A
E
XXXXXX *
C
H
θ
L
D
7°(4X)
SYMBOL
A2
A
A1
A
A2
A1
y
e
B
Dim ensions in Millim eter
Dim ensions in Inches
MIN
NOM
MAX
MIN
NOM
MAX
1.35
0.10
1.60
－
1.75
0.25
0.053
0.004
0.063
－
0.069
0.010
－
1.45
－
0.057
B
0.33
－
0.51
0.013
－
0.020
C
0.19
－
0.25
0.007
－
0.010
D
4.80
－
5.00
0.189
－
0.197
E
3.80
－
4.00
0.150
－
0.157
－
－
e
－
1.27
－
－
1.27
－
H
5.80
－
6.20
0.228
－
0.244
L
0.40
－
1.27
0.016
－
0.050
Y
－
－
0.10
－
－
0.004
θ
0°
－
8°
0°
－
8°
* The package marking “XXXXXX” is a lot number and
therefore being subject to change.
MSOP8 : ST1151A_TMS1
(8-pin MSOP )
1151A
XXXX*
E1
E
C
θ
L
D
12°(4X)
Dimensions in Millimeter
A2
A
SYMBOL
A
A1
y
b
e
* The lot number “XXXX” in product code will also be
subject to change on the package marking.
SP-ST1151A-A.004
Dimensions in Inches
MIN
NOM
MAX
MIN
NOM
MAX
0.81
0.92
1.07
0.032
0.036
0.042
A1
0.00
－
0.10
0.000
－
0.004
A2
0.76
0.86
0.97
0.030
0.034
0.038
b
0.15
0.20
0.30
0.006
0.008
0.012
C
0.13
0.15
0.23
0.005
0.006
0.009
D
2.90
3.00
3.10
0.114
0.118
0.122
E
4.80
4.90
5.00
0.189
0.193
0.197
E1
2.90
3.00
3.10
0.114
0.118
0.122
e
－
0.65
－
－
0.026
－
L
0.40
0.53
0.66
0.016
0.021
0.026
Y
－
－
0.10
－
－
0.004
0°
－
6°
0°
－
6°
θ
Version：A.004
Page：5
點晶科技股份有限公司
ST1151A
SILICON TOUCH TECHNOLOGY INC.
The products listed herein are designed for ordinary electronic applications, such as
electrical appliances, audio-visual equipment, communications devices and so on.
Hence, it is advisable that the devices should not be used in medical instruments,
surgical implants, aerospace machinery, nuclear power control systems,
disaster/crime-prevention equipment and the like. Misusing those products may
directly or indirectly endanger human life, or cause injury and property loss.
Silicon Touch Technology, Inc. will not take any responsibilities regarding the
misusage of the products mentioned above. Anyone who purchases any products
described herein with the above-mentioned intention or with such misused applications
should accept full responsibility and indemnify. Silicon Touch Technology, Inc. and its
distributors and all their officers and employees shall defend jointly and severally
against any and all claims and litigation and all damages, cost and expenses associated
with such intention and manipulation.
SP-ST1151A-A.004
Version：A.004
Page：6