Stepper Motor Driver IC
MTD Series
MTD2003B
Features
Dual Full-bridge
PWM 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
●Low thermal resistance ZIP package(ZIP27)
SZIP27
■Absolute maxmum ratings / Ta=25℃
Parameter
Output voltage
Output current
Logic supply
Logic input
Allowable power dissipation
Storge temperature range
Maximum Junction temperature
Symbol
Vmm
I
OUT
Vcc
V
LOGIC
P
D
Tstg
Tj
Rating
35
1.2
0∼6
0∼Vcc
5
-40∼150
150
Unit
V
A
V
V
W
℃
℃
■Pin Assignment
Marking Area
■Truth table
IN 1 or 4
L
Pin
Pin
Pin
Pin
Pin
Pin
Pin
Pin
Pin
Pin
Pin
Pin
Pin
Pin
Pin
Pin
Pin
Pin
Pin
Pin
Pin
Pin
Pin
Pin
Pin
Pin
Pin
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
CR
Vs B
NC
I1
IN 3
IN 4
Vcc
Vmm B
OUT 4
Rs B
NC
NC
OUT 3
NC
PG
NC
Out 2
Rs A
OUT 1
Vmm A
Vcc
IN 1
IN 2
I0
Vs A
Vr
LG
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%
-
L
H
H
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 ]
