Stepper Motor Driver IC
MTD Series
MTD2003S
Features
Dual Full-bridge
PWM Stepper Motor Driver
●Dual full bridge for a bipolar stepper motor driver
●Output current 1.2A , Output voltage 35V
●Constant current control(fixed frequency PWM control)
●2-bit digital current selection
●Noise cancellation function
●Built-in flywheel and flyback diodes
●Cross conduction protection
●Shrink-ZIP package （SZIP32）
SZIP32
■Absolute maxmum ratings / Ta=25℃
Parameter
Output voltage
Output current
Logic supply
Logic input
Allowable power disspation
Storage tmperature range
MaximumJunction temperature
Symbol
Vmm
I
OUT
Vcc
V
LOGIC
P
D
Tstg
Tj
Rating
35
1.2
0∼6
0∼Vcc
4.31
-40∼150
150
Unit
V
A
V
V
W
℃
℃
■Pin Assignment
MTD2003S
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
■Truth table
MARKING SIDE VIEW
GND
Vs B
I1
IN4
Vmm B
NC
NC
GND
GND
NC
NC
NC
Vmm A
IN1
I0
Vr
IN 1 or 4
L
L
H
H
IN 2 or 3
L
H
L
H
OUT 1 or 4
OFF
L
H
OFF
OUT 2 or 3
OFF
H
L
OFF
Vref[V]
(at Vr=5V)
0.50±5%
0.35±8%
0.17±10%
-
CR
NC
IN3
Vcc
OUT4
Rs B
OUT3
GND
GND
OUT2
Rs A
OUT1
Vcc
IN2
Vs A
GND
I0
L
H
L
H
I1
L
L
H
H
Output current
ratio[%]
100
70
33
0
Shindengen Electric Mfg.Co.Ltd
W1002
SHINDENGEN [ SHINDENGEN ELECTRIC MFG.CO.LTD ]
