11-MD111
Version
Issue Date
File Name
Total Pages
:
A.001
:
2008/07/23
:
SP-MD111-A.001.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½有限公司
SILICON TOUCH TECHNOLOGY INC.
MD111
MD111
Low-saturation, Low-voltage
1 Channel Bi-directional Toy Motor Driver
General Specifications
The device is a 1-channel low-saturation bi-directional H-bridge driver IC. The design is
optimal for DC motor in toy application with forward, reverse, brake and stand-by function.
Features and Benefits
Low voltage operation ( V
DD Min
= V
SMin
= 1.5V )
Low saturation voltage ( Upper transistor + low transistor residual voltage; 0.4V typ. at
300mA , V
DD
= V
S
= 3V)
Low input current
Brake function
High output sinking and driving capability
Thin, highly reliable package (SOP-8, MSOP8)
Pin Assignment
VS
O1
IN3
GND
O2
IN2
VDD
IN1
Pin NO.
1
2
3
4
5
6
7
8
Pin Name
VS
O1
IN3
GND
IN1
VDD
IN2
O2
Description
Power supply pin for output driver
Output sinking / driving pin
Input pin 3 that determines driving mode
Ground pin
Input pin 1 that determines driving mode
Power supply pin for controller.
Input pin 2 that determines driving mode
Output sinking / driving pin
SP-MD111-A.001(Only For Toy Driver)
Page
：
1
Version
：
A.001
點晶科技股½有限公司
SILICON TOUCH TECHNOLOGY INC.
MD111
Absolute Maximum Ratings
( Unless otherwise noted, T
A
= 25
℃
)
Characteristic
Supply Voltage
Input Voltage
I
O
Peak Current
I
ODC
Current
Power Dissipation(SOP8)
Power Dissipation(MSOP8)
Operating Temperature Range
Storage Temperature Range
Symbol
V
DD
V
S
V
IN
I
OPeak
I
ODC
P
D-SOP
P
D-MSOP
T
OPR
T
STG
Rating
6.5
6.5
V
DD
+0.4
2
0.80
680
480
-40 ~ 125
-65 ~ 150
Unit
V
V
V
A
A
mW
mW
°C
°C
Electrical Characteristic
(Unless otherwise noted, T
A
= 25
℃
& V
DD
= V
S
= 3V )
Characteristic
Sym.
V
DD
V
S
I
DD0
I
DD1
V
IN1, IN2, IN3
= 0V
V
IN1, IN2, IN3
= 3V
Condition
Limit
Min.
1.5
1.5
Typ.
3
3
0.5
1
Max.
6.5
6.5
10
10
Unit
V
V
μA
μA
Supply Voltage
Supply Current
( I
DD
+ I
S
)
IN1 / IN2 / IN3 Input Terminal ( T
J
= 25℃)
Input Voltage “H”
Input Voltage “L”
Input Current “H”
Input Current “L”
V
IH
V
IL
I
IH
I
IL
-
-
V
IN
= V
DD
V
IN
= 0 V
0.8*V
DD
-0.4
-
-
-
-
-
-
V
DD
+0.
4
0.2*V
DD
±5
±5
V
V
μA
μA
O1 / O2 Output Terminal ( T
J
= 25℃)
Output Voltage
(upper + lower)
Output Sustaining
Voltage
V
OUT1
V
OUT2
V
OUT3
I
OUT
= 200 mA
I
OUT
= 300 mA
I
OUT
= 600 mA
-
-
-
-
0.3
0.5
0.9
-
0.45
0.7
1.0
V
S
V
V
V
V
V
O(SUS)
I
OUT
= 400 mA
SP-MD111-A.001(Only For Toy Driver)
Page
：
2
Version
：
A.001
點晶科技股½有限公司
SILICON TOUCH TECHNOLOGY INC.
MD111
Truth Table
Input Signal
IN1
H
L
H
L
H
L
H
IN2
L
H
H
L
L
H
H
IN3
L
L
L
L
H
H
H
Output Driver
O1
H
L
H
OFF
OFF
OFF
OFF
O2
L
H
H
OFF
H
L
H
Mode
M1Forward
M1Reverse
M1Brake
Standby
M2 Operation
M2 Operation
M2 Operation
Block Diagram & Application Circuit
VDD
6
VS
1
1μF
IN1
5
O1
2
7
IN2
Control
8
O2
M1
IN3
3
M2
GND
4
Note. To select M2 operating,
the external driver is
required.
SP-MD111-A.001(Only For Toy Driver)
Page
：
3
Version
：
A.001
點晶科技股½有限公司
SILICON TOUCH TECHNOLOGY INC.
MD111
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
800
750
700
650
600
550
500
450
400
350
300
250
200
150
100
50
0
0
Power Dissipation ( mW )
SOP8
MSOP8
Ambient Temperature (
℃
)
25
50
75
100
125
SP-MD111-A.001(Only For Toy Driver)
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：
4
Version
：
A.001
