X-NUCLEO-IHM14A1

October 2017
DocID031100 Rev 1
1/4
For further information contact your local STMicroelectronics sales
office
www.st.com
X-NUCLEO-IHM14A1
Stepper motor driver expansion board based on STSPIN820 for
STM32 Nucleo
Data brief
Features
Operating voltage: 7 to 45 V
Output current up to 1.5 A
rms
Fine tuning microstepping up to the 256
th
step
Current control with adjustable OFF time
Full protection set:
Overcurrent protection
Short-circuit protection
Under voltage lock out
Thermal shutdown
Compatible with Arduino UNO R3 connector
Compatible with STM32 Nucleo boards
RoHS compliant
Applications
3D printers
Medical equipment
Industrial 2D printers
Textile and sewing machines
CCTV, security and dome cameras
ATM and cash handling machines
Office and home automation
POS
Robotics
Description
The X-NUCLEO-IHM14A1 motor driver
expansion board is based on the STSPIN820
monolithic driver for stepper motors.
It represents an affordable, easy-to-use solution
for driving stepper motors in your STM32 Nucleo
project, implementing motor driving applications
such as 2D/3D printers, robotics and security
cameras.
The STSPIN820 implements a PWM current
control with constant OFF time adjustable via an
external resistor and a microstepping resolution
up to the 256
th
step.
The X-NUCLEO-IHM14A1 expansion board is
compatible with the Arduino UNO R3 connector
and the ST morpho connector, so it can be
plugged to the STM32 Nucleo development
board and stacked with additional X-NUCLEO
expansion boards.
Schematic diagram
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DocID031100 Rev 1
Schematic diagram
Figure 1: X-NUCLEO-IHM14A1 circuit schematic
Vs
GND
A-
A+
B+
B-
3.3V
GND
GND
EN
DIR
REF
CLK
DEC
GND
STBY
M1
M2
M3
.
.
.
.
Roff
C1: SMD
footprint
option
C2: Through
Hole footprint
option
OUTA1
OUTA2
OUTB1
OUTB2
OUTB1
OUTB2
OUTA2
OUTA1
EN_FAULT
EN_FAULT
VREF
REF_PWM
REF_PWM
STBY
MODE1
MODE2
MODE3
STCK
DIR
DECAY
MODE1
MODE2
MODE3
MODE1
MODE3
MODE2
STBY
STBY
DECAY
DECAY
STCK
DIR
OUTA1
OUTA2
OUTB2
OUTB1
TOFF
VS
VS
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VS
R24 10k
D3
YELLOW
2
1
TP8
GND
R3
39k
R14
0.68/0.5W
R13
0.68/0.5W
R12
10k/0.5W
S2
MODE2
1
2
3
+
C2
1
2
R20
18k
CN8
1
2
3
4
5
6
TP2
OUTA1
S3
MODE3
1
2
3
R6
47k
S4
DECAY
1
2
3
TP3
OUTA2
R11
10k/0.5W
R15
0.68/0.5W
C7
220n
Q2
1
2
3
R19
22k
TP4
OUTB1
R7
1k
1
3
2
R26 0
Q1
1
3
2
R10
10k/0.5W
R25 0
TP5
OUTB2
R18
47k
S1
MODE1
1
2
3
R29
0
CN10
CON-2x19
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
C5
220n
CN7
CON-2x19
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
R1
5k6
R4 NM
C3
TP7
VDD
D2
YELLOW
2
1
R27
NM
U1
STSPIN820
VREF
1
GND
2
GND
3
SNSA
4
SENSEA1
5
OUTA1
7
OUTA2
8
VS
9
VS
10
OUTB2
11
OUTB1
12
SENSEB2
13
SENSEB1
14
SNSB
15
STBY
16
EN_FAULT
17
DECAY
18
STCK
19
DIR
20
MODE1
21
MODE2
22
MODE3
23
TOFF
24
SENSEA2
6
EPAD
25
R5 22k
D4
YELLOW
2
1
+
33 µF/50 V
1
2
R22 10k
CN1
1
2
3
4
5
6
CN5
1
2
3
4
5
6
7
8
9
10
CN9
1
2
3
4
5
6
7
8
R23 10k
TP6
GND
R16
0.68/0.5W
R8
330
D5
RED
2
1
C6
1n
R9
10k/0.5W
TP1
VREF
R17
47k
TP9
VS
C4
10n
CN6
1
2
3
4
5
6
7
8
R2
1k
R28
NM
R21 10k
D1
YELLOW
2
1
Vref
C1
33 µF/50 V
330 n/50 V
CON-1x6
CON-1x10
CON-1x8
CON-1x8
X-NUCLEO-IHM14A1
DocID031100 Rev 1
3/4
Revision history
Table 1: Document revision history
Date
Version
Changes
17-Oct-2017
1
Initial release.

X-NUCLEO-IHM14A1

Mfr. #:
Manufacturer:
STMicroelectronics
Description:
Power Management IC Development Tools Stepper motor driver expansion board based on STSPIN820 for STM32 Nucleo
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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