Texas Instruments DRV8834EVM, User Manual

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1
1
2
2
3
3
4
4
5
5
6
6
D D
C C
B B
A A
Scale Sheet
Size FCSMNo. DWGNo. Rev
B
B
Texas Instruments
1 of 2
DRV8834DC and SteppingMotor Drive EVM
1
TP24
GND
GND
1
TP23
VDD
VDD
nSLEEP
1
BDECAY
2
ADECAY
3
AOUT1
4
AISEN
5
AOUT2
6
BOUT2
7
BISEN
8
BOUT1
9
nENBL/AENBL
10
STEP/BENBL
11
DIR/BPHASE
12
VREFO
24
BVREF
23
AVREF
22
GND
21
VINT
20
VM
19
VM
18
VCP
17
nFAULT
16
CONFIG
15
M1
14
M0/APHASE
13
P
W
R
_
P
A
D
0
U1
DRV8834PWP
GND
nFAULT
CONFIG
M1
M0/APHASE
nSLEEP
BDECAY
ADECAY
nENBL/AENBL
STEP/BENBL
DIR/BPHASE
VREFO
EXT_AVREF
MSP_AVREF
AVREF
AVREF
BVREF
AVREF
EXT_BVREF
MSP_BVREF
BVREF
VINT
VCP
VM
1
2
3
4
5
6
7
8
9
10
11
12
13
14
J3
Input
VDD
GND
nFAULT
EXT_AVREF
EXT_BVREF
nSLEEP
EXT_BDECAY
EXT_ADECAY
nENBL/AENBL
STEP/BENBL
DIR/BPHASE
M0/APHASE
M1
CONFIG
AOUT1
AISEN
AOUT2
BOUT2
BISEN
BOUT1
AOUT1
AOUT2
BOUT2
BOUT1
1
2
3
4
J4
OUT
AOUT1
AOUT2
BOUT2
BOUT1
1
TP10
nENBL/AENBL
n
E
N
B
L
/A
E
N
B
L
1
TP11
STEP/BENBL
S
T
E
P
/B
E
N
B
L
1
TP1
nSLEEP
n
S
L
E
E
P
1
TP2
BDECAY
B
D
E
C
A
Y
1
TP3
ADECAY
A
D
E
C
A
Y
1
TP4
AOUT1
A
O
U
T
1
1
TP5
AOUT2
A
O
U
T
2
1
TP6
AISEN
A
IS
E
N
1
TP7
BOUT2
B
O
U
T
2
1
TP8
BOUT1
B
O
U
T
1
1
TP9
BISEN
B
IS
E
N
1
TP12
DIR/BPHASE
D
IR
/B
P
H
A
S
E
1
TP13
VREFO
V
R
E
F
O
1
TP14
BVREF
B
V
R
E
F
1
TP15
AVREF
A
V
R
E
F
1
TP16
VINT
V
IN
T
1
TP22
VM
V
M
1
TP17
VCP
V
C
P
1
TP18
nFAULT
n
F
A
U
L
T
1
TP19
CONFIG
C
O
N
F
IG
1
TP20
M1
M
1
1
TP21
M0/APHASE
M
0
/A
P
H
A
S
E
GND
250K
R1
BDECAY
MSP_BDECAY
100uF
C1
10uF
C2
.1uF
C3
VREFO
C
C
1
1
2
2
3
3
4
4
S3
BVREF SEL
C
C
1
1
2
2
3
3
S4
AVREF SEL
GND
50K
R6
VREFO
GND
EXT_BDECAY
GND
1
TP25
GND
GND
1
TP26
GND
GND
1
TP27
GND
GND
C
C
1
1
2
2
3
3
S1
BDECAY SEL
250K
R2
ADECAY
MSP_ADECAY
EXT_ADECAY
GND
C
C
1
1
2
2
3
3
S2
ADECAY SEL
50K
R7
1
2
3
4
J2
Header4
0.2
R4
2.2uF C4
.1uF C5
1
1
2
2
J1
PWR
VM
nFAULT
D1
nFAULT
274
R5
VDD
0.2
R3
Schematics and Bill of Materials
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24 SLVU701B – March 2012 – Revised July 2019
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Copyright © 2012–2019, Texas Instruments Incorporated
DRV8834 Evaluation Module
5 Schematics and Bill of Materials
5.1 Schematics
The following pages contain the schematics for the DRV8834EVM.
The DRV8834EVM schematics are also available in the form of a PDF file (SCH.pdf) inside the
EVM_Related folder on the downloadable EVM software package.