Schematic

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1
2
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D D
C C
B B
A A
Stepper_Motor_Driver
Title:
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Date:
Revision:
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A4
Drawn:
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V1.1
Swanglei-SH
1 of 1
2014/11/4 10:48:37
CP1
1
CP2
2
VCP
3
VMA
4
AOUT1
5
ISENA
6
AOUT2
7
BOUT2
8
ISENB
9
BOUT1
10
VMB
11
AVREF
12
BVREF
13
GND
14
V3POUT
15
nRESET
16
nSLEEP
17
nFAULT
18
DECAY
19
DIR
20
nENBL
21
STEP
22
NC
23
MODE0
24
MODE1
25
MODE2
26
nHOME
27
GND
28
U1
DRV8825
0.47uF
C2
0.1R
RS1
0.1R
RS2
GND
Ry
Rx
3V3
10nF
C3
VMM
VMM
100nF
C1
1
2
3
4
5
6
7
8
P1
1
2
3
4
5
6
7
8
9
P2
VMM
GND
2A
2B
1A
1B
VDD
1.5K
RS3
VMM
GND
M0
M1
M2
DIR
STP
SLP
RST
EN
GND
10K
RS4
M0
M1
M2
DIR
STP
SLP
RST
EN
3V3
4.7uF
C4
100nF
C5
1
2
3
P3
DECAY
FAULT
DECAY
FAULT
RJ
0R
VREF
2A
2B
1A
1B
GND
VMM
VDD