Schematic

220
R7
IN2
1
INV
7
EN
10
D2
16
PGND
19
OUT2
28
VPWR
31
IN1
2
SLEW
3
VPWR
4
AGND
5
VPWR
6
OUT1
12
OUT1
13
FB
8
NC
9
VPWR
11
OUT1
14
OUT1
15
NC
17
PGND
18
PGND
20
SF
21
PGND
22
PGND
23
PGND
24
NC
25
D1
26
OUT2
27
OUT2
29
OUT2
30
PAD
33
CCP
32
MC33926
D1
12V
100k
R2
C2
47 uF
VOUT
33 nF
C5
VIN
0.47 uF
C6
M1B
M1A
1kR6
Lines that default high
D1, IN1, IN2 (!SF is open drain output)
FB provides 0.24% of the H-bridge high-side current
Lines that default low
EN, !D2, INV, SLEW
0.1 uF
C1
220
R15
IN2
1
INV
7
EN
10
D2
16
PGND
19
OUT2
28
VPWR
31
IN1
2
SLEW
3
VPWR
4
AGND
5
VPWR
6
OUT1
12
OUT1
13
FB
8
NC
9
VPWR
11
OUT1
14
OUT1
15
NC
17
PGND
18
PGND
20
SF
21
PGND
22
PGND
23
PGND
24
NC
25
D1
26
OUT2
27
OUT2
29
OUT2
30
PAD
33
CCP
32
MC33926
C8
47 uF
VOUT
33 nF
C9
0.47 uF
C10
1kR14
0.1 uF
C7
VIN
M1B
M1A
1 uF
C3
VIN
M2B
M2A
VOUT
1
2
4
3
5
6
7
8
9
10
11
12
JP4
1
2
J3
M2B
M2A
M1B
M1A
1 uF
C4
VOUT
1
2
J1
1
2
J2
D4
BLUE
4.7k
R9
VOUT
D2
RED
D3
GREEN
4.7k
R8
M2B
M2A
D5
GREEN
D6
RED
4.7k
R16
Q1
VOUT
VOUT
VOUT
VOUT
VOUT
EN/SLEW
EN/SLEW
M1PWM
M1DIR
10k
R1
Vdd
Vdd
M1nSF
M2nSF
M1nD2
M2nD2
M2FB
M1FB
M1FB
M1PWM
M1DIR
nSF
nD2
M2FB
M2PWM
M2DIR
VDD
M1PWM
M2PWM
M2FB
M1FB
1
2
JP7
ARD_VIN
VOUT
1 2
JP5
1 2
JP6
1 2
JP8
1 2
JP9
1 2
JP10
1 2
JP12
1 2
JP11
1 2
JP13
nSF
M1DIR
nD2
6
11
13
AREF
VOUT
Vdd
GND
1
2
4
3
5
JP2
VOUT
Vdd
1k
R17
Vdd
EN/SLEW
1kR20
4.7k
R18
Vdd
nSF
1 2
JP15
M2nSF
M1nSF
1kR19
nD2
1 2
JP14
M2nD2
M1nD2
JP16
Q2
100k
R4
100k
R5
M2PWM
M2DIR
10k
R10
Vdd
Q3
100k
R12
100k
R13
3
2
1
0
5
A5
A4
A3
A2
3V3
RESET
M1INV and M2INV should be NC
JP16 is default setting jumper for nD2
1
2
3
JP3
1
2
3
JP1
RX
0
TX
1
2
2
~3
3
4
4
~5
5
~6
6
7
7
8
8
~9
9
~10
10
~11
11
12
12
13
13
GND
20
AREF
21
A5
19
A4
18
A3
17
A2
16
A1
15
A0
14
VIN
24
GND
25
GND
26
5V
27
3.3V
28
RESET
29
IOREF
30
reserved
31
SCL
23
SDA
22
Arduino Uno R3
M2DIR
SCL
SDA
RESERVED
IOREF
Schematic Diagram for the Pololu Dual MC33926 Motor Driver Shield for Arduino
©2012 Pololu Corporation
www.pololu.com
Notes
PIC101
PIC102
COC1
PIC201
PIC202
COC2
PIC301
PIC302
COC3
PIC401
PIC402
COC4
PIC501
PIC502
COC5
PIC601
PIC602
COC6
PIC701
PIC702
COC7
PIC801
PIC802
COC8
PIC901
PIC902
COC9
PIC1001
PIC1002
COC10
PID101 PID102
COD1
PID201
PID202
COD2
PID301
PID302
COD3
PID401
PID402
COD4
PID501
PID502
COD5
PID601
PID602
COD6
PIJ101
PIJ102
COJ1
PIJ201
PIJ202
COJ2
PIJ301
PIJ302
COJ3
PIJP101
PIJP102
PIJP103
COJP1
PIJP201
PIJP202
PIJP203
PIJP204
PIJP205
COJP2
PIJP301
PIJP302
PIJP303
COJP3
PIJP401
PIJP402
PIJP403
PIJP404
PIJP405
PIJP406
PIJP407
PIJP408
PIJP409
PIJP4010
PIJP4011
PIJP4012
COJP4
PIJP501 PIJP502
COJP5
PIJP601 PIJP602
COJP6
PIJP701
PIJP702
COJP7
PIJP801 PIJP802
COJP8
PIJP901 PIJP902
COJP9
PIJP1001 PIJP1002
COJP10
PIJP1101PIJP1102
COJP11
PIJP1201 PIJP1202
COJP12
PIJP1301PIJP1302
COJP13
PIJP1401 PIJP1402
COJP14
PIJP1501 PIJP1502
COJP15
PIJP1601
COJP16
PIQ101
PIQ103PIQ104
COQ1
PIQ201
PIQ202
PIQ203
COQ2
PIQ301
PIQ302
PIQ303
COQ3
PIR101
PIR102
COR1
PIR201
PIR202
COR2
PIR401
PIR402
COR4
PIR501
PIR502
COR5
PIR601PIR602
COR6
PIR701
PIR702
COR7
PIR801
PIR802
COR8
PIR901
PIR902
COR9
PIR1001
PIR1002
COR10
PIR1201
PIR1202
COR12
PIR1301
PIR1302
COR13
PIR1401PIR1402
COR14
PIR1501
PIR1502
COR15
PIR1601
PIR1602
COR16
PIR1701
PIR1702
COR17
PIR1801
PIR1802
COR18
PIR1901 PIR1902
COR19
PIR2001 PIR2002
COR20
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
COU1
PIU201
PIU202
PIU203
PIU207
PIU2014
COU2A
PIU204
PIU205
PIU206
COU2B
PIU208
PIU209
PIU2010
COU2C
PIU2011
PIU2012
PIU2013
COU2D
PIU301
PIU302
PIU303
PIU304
PIU305
PIU306
PIU307
PIU308
PIU309
PIU3010
PIU3011
PIU3012
PIU3013
PIU3014
PIU3015
PIU3016
PIU3017
PIU3018
PIU3019
PIU3020
PIU3021
PIU3022
PIU3023
PIU3024
PIU3025
PIU3026
PIU3027
PIU3028
PIU3029
PIU3030
PIU3031
PIU3032
PIU3033
COU3
PIU400
PIU401
PIU402
PIU403
PIU404
PIU405
PIU406
PIU407
PIU408
PIU409
PIU4010
PIU4011
PIU4012
PIU4013
PIU4014
PIU4015
PIU4016
PIU4017
PIU4018
PIU4019
PIU4020
PIU4021
PIU4022
PIU4023
PIU4024
PIU4025
PIU4026
PIU4027
PIU4028
PIU4029
PIU4030
PIU4031
COU4
PIU400
NL0
PIU401
NL1
PIU402
NL2
PIU403
NL3
PIU4028
NL3V3
PIU405
NL5
PIU406
NL6
PIU4011
NL11
PIU4013
NL13
PIU4016
NLA2
PIU4017
NLA3
PIU4018
NLA4
PIU4019
NLA5
PIJP701 PIU4024
NLARD0VIN
PIU4021
NLAREF
PIR1701
PIU103
PIU109
PIU1010
PIU303
PIU309
PIU3010
NLEN0SLEW
PIC101 PIC201
PIC301 PIC401
PIC601
PIC701 PIC801
PIC1001
PIJ302
PIJP202
PIJP405
PIJP406
PIQ202
PIQ302
PIR201
PIR402 PIR502
PIR702
PIR901
PIR1202 PIR1302
PIR1502
PIU105
PIU1017
PIU1018
PIU1019
PIU1020
PIU1022
PIU1023
PIU1024
PIU1025
PIU1026
PIU1033
PIU207
PIU305
PIU3017
PIU3018
PIU3019
PIU3020
PIU3022
PIU3023
PIU3024
PIU3025
PIU3026
PIU3033
PIU4020
PIU4025
PIU4026
NLGND
PIU4030
NLIOREF
PID202PID301
PIJ102
PIJP401
PIJP402
PIU1027
PIU1028
PIU1029
PIU1030
NLM1A
PIJ101
PIJP403
PIJP404
PIR802
PIU1012
PIU1013
PIU1014
PIU1015
NLM1B
PIJP102
PIJP1001 PIJP1002
PIQ201
PIR401
PIU202
PIU407
NLM1DIR
PIC602
PIJP101
PIJP1101PIJP1102
PIR602
PIU4014
NLM1FB
PIJP1501 PIJP1502 PIR1801
PIR2002
PIU1021
PIU3021
NLM1nSF
NLM2nSF
PIJP103
PIJP801 PIJP802
PIR501
PIU201
PIU204
PIU409
NLM1PWM
PIJ202 PIJP409
PIJP4010
PIR1601
PIU3027
PIU3028
PIU3029
PIU3030
NLM2A
PID502PID601
PIJ201
PIJP4011
PIJP4012
PIU3012
PIU3013
PIU3014
PIU3015
NLM2B
PIJP302
PIJP901 PIJP902
PIQ301
PIR1201
PIU209
PIU408
NLM2DIR
PIC1002
PIJP301
PIJP1301PIJP1302
PIR1402
PIU4015
NLM2FB
PIJP1401 PIJP1402
PIR1902
PIU1016
PIU3016
NLM1nD2
NLM2nD2
PIJP303
PIJP601 PIJP602
PIR1301
PIU2010
PIU2013
PIU4010
NLM2PWM
PIJP205
PIJP1201 PIJP1202
PIR1901
PIU404
NLnD2
PIC501
PIU1032
PIC901
PIU3032
PID101
PIQ101
PIR202
PID201PID302
PIR801
PID402
PIR902
PID501PID602
PIR1602
PIQ203
PIR102
PIU205
PIQ303
PIR1002
PIU2012
PIR601
PIR701
PIU108
PIR1401
PIR1501
PIU308
PIU101
PIU206
PIU102
PIU203
PIU107
PIU208
PIU302
PIU2011
PIU301
PIU307
PIJP204
PIJP501 PIJP502
PIR2001
PIU4012
NLnSF
PIU4031
NLRESERVED
PIU4029
NLRESET
PIU4023
NLSCL
PIU4022
NLSDA
PIJP201
PIJP1601
PIR101
PIR1001
PIR1702
PIR1802
PIU2014
PIU4027
NLVdd
PIJ301
PIJP407
PIJP408
PIQ104
PIC102 PIC202
PIC302 PIC402
PIC502
PIC702 PIC802
PIC902
PID102
PID401
PIJP203
PIJP702
PIQ103
PIU104
PIU106
PIU1011
PIU1031
PIU304
PIU306
PIU3011
PIU3031
NLVOUT