S
ch
ema
tics an
d L
ayou
t
2020
Micr
ochip T
e
ch
nol
ogy
I
n
c.
DS
50002927A
-page 45
FIGURE A-2:
SCHEMATICS PAGE 2 OF 8
Internal Op Amp
OA2IN-
IB
OA2IN+
SHUNT_IB_N
SHUNT_IB_P
AGND
AGND
IB_EXT
VREF
OA3IN-
IBUS
OA3IN+
SHUNT_IBUS_N
SHUNT_IBUS_P
AGND
AGND
IBUS_EXT
VREF
OA1IN-
IA
OA1IN+
SHUNT_IA_N
VREF
+
-
+
-
+
-
0603
DNP
R137
0603
DNP
R129
IB
IBUS
OA2
OA3
OA1
The operational amplifiers, OA1, OA2 and OA3, are internal to dsPIC33CK256MP508
AGND
AGND
IA_EXT
0603
DNP
R121
SHUNT_IA_P
dsPIC33CK256MP508
MCLR
RP46/PWM1H/PMD5/RB14
1
AN20/RE0
2
RP47/PWM1L/PMD6/RB15
3
AN21/RE1
4
RP60/PWM8H/PMD7/RC12
5
RP61/PWM8L/PMA5/RC13
6
RP62/PWM6H/PMA4/RC14
7
RP63/PWM6L/PMA3/RC15
8
MCLR
9
RP79/PCI22/PMA2/RD15
10
V
ඌඌ
11
V
ൽൽ
12
RP78/PCI21/RD14
13
ANN2/RP77/RD13
14
AN12/ANN0/RP48/RC0
15
OA1OUT/AN0/CMP1A/IBIAS0/RA0
16
AN22/RE2
17
OA1IN-/ANA1/RA1
18
AN23/RE3
19
OA1IN+/AN9/PMA6/RA2
20
DACOUT1/AN3/CMP1C/RA3
21
RE4
22
OA3OUT/AN4/CMP3B/IBIAS3/RA4
23
RE5
24
AV
ൽൽ
25
AV
ඌඌ
26
RP76/RD12
27
OA3IN-/AN13/CMP1B/ISRC0/RP49/PMA7/RC1
28
OA3IN+/AN14/CMP2B/ISRC1/RP50/PMD13/PMA13/RC2
29
AN17/ANN1/IBIAS1/RP54/PMD12/PMA12/RC6
30
V
ൽൽ
31
V
ඌඌ
32
AN15/CMP2A/IBIAS2/RP51/PMD11/PMA11/RC3
33
OSCI/CLKI/AN5/RP32/PMD10/PMA10/RB0
34
OSCO/CLKO/AN6/RP33/PMA1/PMALH/PSA1/RB1
35
AN19/CMP2C/RP75/PMA0/PMALL/PSA0/RD11
36
RE6
37
AN18/CMP3C/ISRC3/RP74/PMD9/PMA9/RD10
38
RE7
39
AN16/ISRC2/RP55/PMD8/PMA8/RC7
40
OA2OUT/AN1/AN7/ANA0/CMP1D/CMP2D/CMP3D/RP34/SCL3/INT0/RB2
41
RE8
42
PGD2/OA2IN-/AN8/RP35/RB3
43
RE9
44
PGC2/OA2IN+/RP36/RB4
45
RP56/ASDA1/SCK2/RC8
46
RP57/ASCL1/SDI2/RC9
47
RP73/PCI20/RD9
48
RP72/SDO2/PCI19/RD8
49
V
ඌඌ
50
V
ൽൽ
51
RP71/PMD15/RD7
52
RP70/PMD14/RD6
53
RP69/PMA15/PMCS2/RD5
54
PGD3/RP37/SDA2/PMA14/PMCS1/PSCS/RB5
55
PGC3/RP38/SCL2/RB6
56
RE10
57
TDO/AN2/CMP3A/RP39/SDA3/RB7
58
RE11
59
PGD1/AN10/RP40/SCL1/RB8
60
PGC1/AN11/RP41/SDA1/RB9
61
RE12
62
RP52/PWM5H/ASDA2/RC4
63
RE13
64
RP53/PWM5L/ASCL2/PMWR/PMENB/PSWR/RC5
65
RP58/PWM7H/PMRD/PMWR/PSRD/RC10
66
RP59/PWM7L/RC11
67
RP68/ASDA3/RD4
68
RP67/ASCL3/RD3
69
V
ඌඌ
70
V
ൽൽ
71
RP66/RD2
72
RP65/PWM4H/RD1
73
RP64/PWM4L/PMD0/RD0
74
TMS/RP42/PWM3H/PMD1/RB10
75
TCK/RP43/PWM3L/PMD2/RB11
76
RE14
77
TDI/RP44/PWM2H/PMD3/RB12
78
RE15
79
RP45/PWM2L/PMD4/RB13
80
dsPIC33CK256MP508
U9
PWM_AL
OSCO
OSCI
OA2IN-
OA2IN+
IB
OA3IN-
OA3IN+
IBUS
OA1IN-
IA
OA1IN+
+3.3V
PWM_AH
PWM_BL
PWM_BH
PWM_CH
PWM_CL
CLICK_AN_B
CLICK_AN_A
QEI_A
QEI_B
QEI_INDEX
QEI_HOME
CLICK_INT_A
DEBUG_RX
DEBUG_TX
SPEED_REFERENCE
V_B
V_A
TEMP_EXT
CLICK_SCK_A
V_C
TEMP_LOCAL
CLICK_MOSI_A
LED1
CLICK_MISO_A
LED2
CLICK_TX_A
CLICK_SCK_B
CLICK_MOSI_B
CLICK_CS_B
CLICK_MISO_B
CLICK_RX_B
CLICK_TX_B
CLICK_RX_A
PGC
PGD
IBUS_FILT_EXT
BUTTON1
IC_EXT
V_BUS
BUTTON2
BUTTON3
CLICK_SDA_B
CLICK_SCL_B
CLICK_PWM_B
CLICK_INT_B
HALL_A
HALL_B
HALL_C
CLICK_RST_B
CLICK_RST_A
DNP
X2
OSCI
OSCO
PIN
12
PIN
51
PIN
71
PIN
31
+3.3V
+3.3V
+3.3V
+3.3V
PIN25
PGC
PGD
+3.3V
4.7
k
R142
+3.3V
1
4
2
3
PTS645SM43SMTR92 LFS
SW4
62R 1%
R144
1000 pF
50V
C96
470R 0.1%
R139
470R 0.1%
R145
62R 1%
R138
62R 1%
R134
1000 pF
50V
C87
470R 0.1%
R131
470R 0.1%
R135
62R 1%
R130
62R 1%
R126
1000 pF
50V
C80
470R 0.1%
R123
470R 0.1%
R127
62R 1%
R122
4.7 μF
10V
TANT-A
C77
0.1 μF
C78
0.1 μF
C81
0.1 μF
C85
0.1 μF
C89
0.1 μF
C92
0.1 μF
C99
0.1 μF
C97
DNP
C94
DNP
C95
IA
DNP
C76
DNP
C83
DNP
C84
DNP
C88
DNP
C91
DNP
C98
AGND
AGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
+3.3 VA
+3.3 VA
0R
R125
0R
R133
0R
R141
10000 pF
C79
10000 pF
C82
10000 pF
C86
10000 pF
C90
10000 pF
C93
100R
R143
MCLR
MCLR
CLICK_CS_A
CLICK_PWM_A
CLICK_SCL_A
CLICK_SDA_A
DNP
TP11
DNP
TP12
DNP
TP13
4.02
k
0.1%
R124
4.02
k
0.1%
R132
4.02
k
0.1%
R128
4.02
k
0.1%
R136
4.02
k
0.1%
R140
4.02
k
0.1%
R146
1
2
3
4
5
6
ICSP™
MCLR
V
ൽൽ
GND
PGD
PGC
AUX
DNP
J10
