Stepper Motor Driver IC
MTD Series
MTD2017F
Features
Dual Full-bridge
Microstepping PWM Motor Driver
●Dual full bridge for a bipolar stepper motor driver
●Load supply voltage 35V , Output current 0.8A
●Constant current control (Fixed OFF time PWM control)
●2-bit selectable current level (Full step/Half step/Quarter step)
●Stand-by function
●Built-in flywheel and flyback diodes
●Under voltage lock out function
●Thermal shutdown with hysteresis
●Surface mount package with heat sink(HSOP28)
■Absolute maxmum ratings / Ta=25℃
Parameter
Output voltage
Output current
Logic supply
Logic input
Power dissipation
Storage temperature range
Maximum Junction temperature
Symbol
Vmm
I
OUT
Vcc
V
LOGIC
P
T
*1
Tstg
Tj
Rating
35
0.8
0∼6
0∼Vcc
3
-40∼150
150
Unit
V
A
V
V
W
℃
℃
HSOP28
*1 : 50.8×50.8×1mm
3
Glass Epoxy Board(FR4),250mm
2
Cupper Pattern
■Pin Assignment
MTD2017F
Vcc 1
Vmm 1
NC
OUT 1A
NC
SENSE 1
OUT 1B
1
2
3
4
5
6
7
■Truth table
TOP VIEW
28
27
26
25
24
23
22
PHA 1 or 2
L
H
OUT A
L
H
Output current
ratio[%]
100
67
33
0
Mode
stand by
active
OUT B
H
L
Vr[V]
(at VREF=5V)
0.500±5%
0.335±8%
0.165±10%
-
PHA 1
I0 1
I1 1
Vs 1
VREF 1
CR 1
STB
I0
L
H
L
H
I1
L
L
H
H
STB
L
H
GND
GND
OUT 2B
SENSE 2
NC
OUT 2A
NC
Vmm 2
Vcc 2
8
9
10
11
12
13
14
21
20
19
18
17
16
15
GND
CR 2
VREF 2
Vs 2
I1 2
I0 2
PHA 2
Shindengen Electric Mfg.Co.Ltd
W1002
SHINDENGEN [ SHINDENGEN ELECTRIC MFG.CO.LTD ]
