11-MD141 - Silicon Touch Technology Inc.

11-MD141
Version
Issue Date
File Name
Total Pages
: A.002
: 2002/09/18
: SP-MD141-A.002.doc
:7
Low-saturation, Low-voltage
Bi-directional Motor Driver
新竹市科學園區展業一路 9 號 7 樓之 1
SILICON TOUCH TECHNOLOGY INC.
9-7F-1, Prosperity Road I, Science Based Industrial Park,
Hsin-Chu, Taiwan 300, R.O.C.
Fax：886-3-5645626
Tel：886-3-5645656
點晶科技股份有限公司
11-MD141
SILICON TOUCH TECHNOLOGY INC.
11-MD141
Low-saturation, Low-voltage
Bi-directional Motor Driver
General Specifications
The device is a four-channels low-saturation bi-directional motor driver IC. The design is
optimal for stepping-motor applications.
Features and Benefits
z
z
z
z
z
Low voltage operation ( VD1 min = VD2 min = 1.5V )
Low saturation voltage
Optimal for 2 stepping motors
High output sinking and driving capability
Thin, small, highly reliable package (SSOP-16)
Pin Assignment
SP-MD141-A.002
GND
1
16
EN1
IN2
2
15
EN2
IN1
3
14
O1
O2
4
13
VD1
O4
5
12
O3
O6
6
11
O5
GND
7
10
VD2
GND
8
9
GND
Version：A.002
- 1 -
點晶科技股份有限公司
11-MD141
SILICON TOUCH TECHNOLOGY INC.
PIN NO. PIN NAME
DESCRIPTION
1
GND
Ground pin
2
IN2
Input pin that determines driving mode.
3
IN1
Input pin that determines driving mode.
4
O2
Output sinking / driving pin.
5
O4
Output sinking / driving pin.
6
O6
Output sinking / driving pin.
7
GND
Ground pin
8
GND
Ground pin
9
GND
Ground pin
10
VD2
Power supply pin.
11
O5
Output sinking / driving pin.
12
O3
Output sinking / driving pin.
13
VD1
Power supply pin.
14
O1
Output sinking / driving pin.
15
EN2
Input pin that select active motor.
16
EN1
Input pin that select active motor.
Absolute Maximum Ratings ( Unless otherwise noted, TA= 25℃ )
Characteristic
Symbol
Rating
Unit
Supply Voltage
VDD
6.0
V
Input Voltage
VIN
VDD+0.4
V
IODC Current
IODC
400
mA
Power Dissipation
PD
600
mW
Operating Temperature Range
TOPR
-40 ~ 125
°C
Storage Temperature Range
TSTG
-65 ~ 150
°C
SP-MD141-A.002
Version：A.002
- 2 -
點晶科技股份有限公司
11-MD141
SILICON TOUCH TECHNOLOGY INC.
Electrical Characteristic
(Unless otherwise noted, TA= 25℃ & VD1 = VD2 = 3V )
Characteristic
Sym.
Supply Voltage
VD1,
VD2
Supply Current
( ID1 + ID2 )
IDD0
Limit
Condition
Unit
Min.
Typ.
Max.
1.5
3
6
V
0.1
0.5
μA
VEN1, EN2, IN1, IN2 = 0V
EN1 / EN2 / IN1 / IN2 Input Terminal ( TJ = 25℃)
Input Voltage “H”
VIH
-
0.5*VDD
-
VDD+0.
4
V
Input Voltage “L”
VIL
-
-0.4
-
0.2*VDD
V
Input Current “H”
IIH
VIN = VDD
-
-
±5
A
Input Current “L”
IIL
VIN = 0 V
-
-
±5
μA
IOUT = 400 mA
-
0.4
0.8
V
VO(SUS) IOUT = 400 mA
-
-
VDD
V
O1 / O2 / O3 / O4 Output Terminal ( TJ = 25℃)
Output Voltage
(upper + lower)
Output Sustaining
Voltage
SP-MD141-A.002
VOUT
Version：A.002
- 3 -
點晶科技股份有限公司
11-MD141
SILICON TOUCH TECHNOLOGY INC.
Truth Table
EN1
L
H
EN2
L
H
H
L
L
H
IN1
L
L
H
H
L
L
H
H
IN2
L
H
H
L
L
H
H
L
O1
OFF
OFF
H
H
L
L
H
L
L
H
O2
OFF
OFF
L
L
H
H
H
L
L
H
O3
OFF
OFF
H
L
L
H
H
H
L
L
O4
OFF
OFF
L
H
H
L
H
H
L
L
O5
OFF
OFF
L
H
H
L
L
L
H
H
O6
OFF
OFF
L
L
H
H
L
H
H
L
Notes
Standby
Motor 1
2-phase
excitation
Motor 2
2-phase
excitation
Block Diagram & Application Circuit
VD1
10μF
VD2
13
10
14
EN1
16
4
EN2
Stepping
Motor 1
O2
O3
15
MicroController
O1
Control
12
5 O4
IN2
2
11
IN1
O5
3
6
O6
Stepping
Motor 2
1
7
8
9
GND GND GND GND
SP-MD141-A.002
Version：A.002
- 4 -
點晶科技股份有限公司
11-MD141
SILICON TOUCH TECHNOLOGY INC.
Application Notes
…
…
The GND pin 1, pin 7, pin8 and pin9 must both connect to system ground. The VD1 pin 13
and VD2 pin 10 must both connect to system power.
In 2-stepping motors application, the driver IC drivers only one stepping-motor operating at
the same time.
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
900
Power Dissipation ( mW )
…
800
700
600
500
400
300
200
100
0
0
25
50
75
100
125
Ambient Temperature ( ℃ )
SP-MD141-A.002
Version：A.002
- 5 -
點晶科技股份有限公司
11-MD141
SILICON TOUCH TECHNOLOGY INC.
Package Specifications(SSOP-16)
Unit: mm
3.91
5.99
9
16
8
1
0.229
0.3Max
0.254
0.635
0.15
1.5
4.9
1.63MAX
0.635
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-MD141-A.002
Version：A.002
- 6 -