11-MD142
Version
Issue Date
File Name
Total Page
: A.003
: 2005/11/7
: SP-MD142-A.003.doc
: 11
Multi-Channels
Motor Driver For DSC
新竹市展業一路 9 號 7 樓之 1
SILICON TOUCH TECHNOLOGY INC.
9-7F-1, Prosperity Rd I, Science-Based Industrial Park
Hsinchu, Taiwan, 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.
11-MD142
11-MD142
Motor Driver For DSC
General Specifications
The 11-MD142 is a 4-channels motor driver for Digital Still Camera. It contains
constant current control for M-shutter and saturation voltage control channels for AF
stepping motor and Iris. It is optimal for DSC Lens module in M-shutter, Iris and Auto
Focus motor.
Features and Benefits
Low voltage operation
Low saturation voltage
Low input current
Easy constant current control
Ultra low standby current
Reference Voltage inside (Vref=1.23V)
Thermal shutdown protection
Thin, highly reliable package :QFN-32(4.75mm X 4.75mm) and TSSOP-20
Pin Assignment
Pin Assignment of QFN-32
OUT1
GND
VDD
NC
NC
NC
NC
IM
Pin Assignment of TSSOP-20
32
31
30
29
28
27
26
25
24
VDD
OUT1
GND
IM
OUT2
OUT3
OUT4
OUT5
OUT6
GND
VREF
PIM
EN1
EN2
IAD
IN1
IN2
IN3
IN4
1
NC
PIM
2
23
GND
EN1
3
22
OUT2
EN2
4
21
OUT3
OUT4
OUT5
OUT6
NC
IAD
IN1
IN2
IN3
IN4
VB
5
20
6
19
7
18
8
9
10
11
12
13
14
15
16
17
VREF
GND
NC
NC
NC
NC
NC
VB
SP-MD142-A.003
Version
：
A.003
Page
：
1
點晶科技股½有限公司
SILICON TOUCH TECHNOLOGY INC.
11-MD142
Pin Descriptions of QFN-32
Pin NO. Pin Name
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
PIM
EN1
EN2
IAD
IN1
IN2
IN3
IN4
NC
NC
NC
VB
VREF
GND
NC
NC
Power supply pin for motor driver
Reference voltage output pin
Motor driver ground
Description
Current sense resistor
Mode Selected Input pin
Mode Selected Input pin
AMP positive input pin
Motor control input pin
Motor control input pin
Motor control input pin
Motor control input pin
Pin NO. Pin Name
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
OUT1
NC
NC
NC
VDD
Power supply pin for controller.
Motor output pin
NC
OUT6
OUT5
OUT4
OUT3
OUT2
GND
NC
IM
GND
Current sense resistor
Controller and driver ground
Motor output pin
Motor output pin
Motor output pin
Motor output pin
Motor output pin
Controller and driver ground
Description
Pin Descriptions of TSSOP-20
Pin NO. Pin Name
1
2
3
4
5
6
7
8
9
10
VDD
PIM
EN1
EN2
IAD
IN1
IN2
IN3
IN4
VB
Description
Power supply pin for controller.
Current sense resistor
Mode selected Input pin
Mode selected Input pin
AMP positive input pin
Motor control input pin
Motor control input pin
Motor control input pin
Motor control input pin
Power supply pin for motor driver
Pin NO. Pin Name
11
12
13
14
15
16
17
18
19
20
VREF
GND
OUT6
OUT5
OUT4
OUT3
OUT2
IM
GND
OUT1
Description
Reference voltage output pin
Motor driver ground
Motor output pin
Motor output pin
Motor output pin
Motor output pin
Motor output pin
Current sense resistor
Controller and driver ground
Motor output pin
SP-MD142-A.003
Version
：
A.003
Page
：
2
點晶科技股½有限公司
SILICON TOUCH TECHNOLOGY INC.
11-MD142
Absolute Maximum Ratings
( Unless otherwise noted, T
A
= 25
℃
)
Characteristic
Supply Voltage
Input Voltage
I
O
Peak Current
I
ODC
Current
Power Dissipation
Operating Temperature Range
Storage Temperature Range
Symbol
V
DD
V
B
V
IN
I
OPeak
I
ODC
P
D
T
OPR
T
STG
Rating
5.5
5.5
V
DD
+0.4
1.5
550
800
-40 ~ 125
-65 ~ 150
Unit
V
V
V
A
mA
mW
°C
°C
Electrical Characteristic
(Unless otherwise noted, T
A
= 25
℃
, Ra + Rb = 10 k
Ω
& V
DD
= V
B
= 3V )
Characteristic
Sym.
V
DD
V
B
I
STB
Supply Current
( I
DD
)
I
DD1
I
DD2
I
DD3
Reference Voltage Circuit
Reference Voltage
Vref
VDD = 3V ; Iref = -1mA
1.19
1.23
1.27
V
V
EN1~ EN2
=L; V
IN1~ IN4
=L
V
EN1~ EN2
= LH
V
EN1~ EN2
= HL
V
EN1~ EN2
= HH
Condition
Min.
Supply Voltage
2.2
-
-
-
-
-
Limit
Typ.
3
3
0.1
0.8
0.6
0.6
Max.
5.5
5.5
1
1.5
1.0
1.0
V
V
μA
mA
mA
mA
Unit
EN1~2 / IN1~4 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
AF Output Terminal (OUT2-3，OUT5-6)
Saturation Voltage
(upper + lower)
V
SAT1
I
OUT
= 200 mA
-
0.25
0.4
V
AE Output Terminal (OUT4-5)
Saturation Voltage
(upper + lower)
V
SAT2
I
OUT
= 200 mA
-
0.25
0.4
V
SP-MD142-A.003
Version
：
A.003
Page
：
3
點晶科技股½有限公司
SILICON TOUCH TECHNOLOGY INC.
11-MD142
SH Output Terminal (OUT1-2)
Output Current1
I
O1
O2-> O1, R
IM
= 1Ω
V
IAD
=0.3V
O1-> O2, R
PIM
= 0.9Ω
V
IAD
=0.3V
I
OUT
= 200 mA
-
0.25
0.4
V
220
248
275
mA
255
270
285
mA
Output Current1
Saturation Voltage
(upper + lower)
I
O2
V
SAT3
Thermal Protection Circuit
Protection Temperature T
TSD
V
EN1
or V
EN2
=H
-
160
-
℃
Truth Table
EN1
L
INPUT
EN2 IN1 IN2 IN3 IN4
— — — —
L
L
L
L
H
H
L
H
H
H
L
L
L
H
H
L
H
H
L
L
L
H
H
L
H
H
L
L
L
L
H
H
L
H
H
L
L
L
H
H
L
H
H
H
L
L
L
H
H
L
H
H
O1
—
—
L
H
—
O2
—
—
H
L
—
OUPUT
O3
O4
—
—
—
—
—
—
—
—
—
L
—
H
—
—
—
L
H
—
—
L
H
—
—
—
—
H
—
L
—
—
—
—
—
—
O5
—
O6
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
MODE
STB
L
SH
—
H
L
—
H
H
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
H
L
—
AE
(VCM)
—
L
H
—
—
L
H
—
—
H
L
—
AF
(STM)
Note: “*”: Don’t care;
“—“: High Impedance
SP-MD142-A.003
Version
：
A.003
Page
：
4
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