Schematic

TB67S279FTG/TB67S249FTG Stepper Motor Driver Carrier
©2018 Pololu Corporation
www.pololu.com
R
* 0 Ω resistor placed in C5 location for standard assembly
LO2
48
OUTA-
18
OUTB-
19
LO1
47
DMODE0
39
DMODE1
40
CLK
43
CW/CCW
42
MO
46
DMODE2
41
GND
29
OUTA+
14
OUTA+
13
VMB
27
OUTA-
17
OUTB-
20
OUTB+
23
OUTB+
24
VREFA
32
VREFB
31
GND
30
VCC
33
RSAGND
15
GND
8
RSAGND
16
RSBGND
21
RSBGND
22
VMA
10
VMA
11
VMB
26
VCC
34
RESET
45
ENABLE
44
PAD
53
CPAD
49
CPAD
50
CPAD
51
CPAD
52
OSCM
35
LTH
7
CLIM1
4
FLIM
5
CLIM0
3
AGC1
2
BOOST
6
AGC0
1
NC
9
NC
12
NC
25
NC
28
NC
36
NC
37
NC
38
U1TB67S2x9FTG
1
2
4
3
5
6
7
8
B+
A+
A-
B-
FLT
1
2
4
3
5
6
7
8
DMODE0
DMODE1
STEP
DIR
DMODE2
4.7 uF
C1
VMOT
0.1 uF
C2
0.1 uF
C3
VMOTVCC
B+
B-
A-
A+
FLT
VCC
100k
R10
VMOT
3k
R3
VCC
VREF
NP
R5
NP
R2
NP
R1
VCC
100k
R7
VCC
0.1 uF
C4
RESET
61
52
U2A
43
U2B
ENABLE
VCC
EN
RST RESET
RST
EN
20k
R8
100k
R6
LTH
AGC1
VCC
ENABLE
VCC
1.5k
R11
FLT_R
CLIM0
CLIM0
VCC
NP
R9
*
C5
clockwise
R4
10k
PIC101
PIC102
COC1
PIC201
PIC202
COC2
PIC301
PIC302
COC3
PIC401
PIC402
COC4
PIC501
PIC502
COC5
PIJP101
PIJP102
PIJP103
PIJP104
PIJP105
PIJP106
PIJP107
PIJP108
COJP1
PIJP201
PIJP202
PIJP203
PIJP204
PIJP205
PIJP206
PIJP207
PIJP208
COJP2
PIR101
PIR102
COR1
PIR201
PIR202
COR2
PIR301
PIR302
COR3
PIR401
PIR402
PIR403
COR4
PIR501
PIR502
COR5
PIR601
PIR602
COR6
PIR701
PIR702
COR7
PIR801
PIR802
COR8
PIR901
PIR902
COR9
PIR1001
PIR1002
COR10
PIR1101 PIR1102
COR11
PITP?01
COTP?
PIU101
PIU102
PIU103
PIU104
PIU105
PIU106
PIU107
PIU108
PIU109
PIU1010
PIU1011
PIU1012
PIU1013
PIU1014
PIU1015 PIU1016
PIU1017
PIU1018
PIU1019
PIU1020
PIU1021 PIU1022
PIU1023
PIU1024
PIU1025
PIU1026
PIU1027
PIU1028
PIU1029 PIU1030
PIU1031
PIU1032
PIU1033
PIU1034
PIU1035
PIU1036
PIU1037
PIU1038
PIU1039
PIU1040
PIU1041
PIU1042
PIU1043
PIU1044
PIU1045
PIU1046
PIU1047
PIU1048
PIU1049 PIU1050 PIU1051 PIU1052
PIU1053
COU1
PIU201
PIU202
PIU205
PIU206
COU2A
PIU203 PIU204
COU2B