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6 Schematics, PCB Layout, and Bill of Materials
Note
Board layouts are not to scale. These figures are intended to show how the board is laid out. The
figures are not intended to be used for manufacturing EVM PCBs.
6.1 Schematics
This section shows the schematics separately for the SENS063 and SENS064
6.1.1 SENS063 (INA228EVM, INA237EVM, INA238EVM)
Figure 6-1 and Figure 6-2 show the schematic of the EVM. Figure 6-1 shows the circuitry for the EVM. Figure
6-2 shows the mechanical components included with the EVM.
INA228AIDGSR/
A1
1
A0
2
ALERT
3
SDA
4
SCL
5
VS
6
GND
7
VBUS
8
IN-
9
IN+
10
U1
GND
0
R2
0
R3
100V
0.1uF
C3 DNP
GND
GND
1
2
3
4
5
6
J1
TP8
SDA
TP9
SCL
TP11
A1
TP10
A0
TP12
ALERT
PD2
TP5
GND
TP6
GND
TP2
IN-
TP4
IN+
TP1
VBUS
TP3
VS
0.1uF
C2
D2
10k
R7
+3V3
+3V3
1 µ F
C1
4.7k
R8
D1
10k
R4
4.7k
R5
4.7k
R6
+3V3
+3V3
PN5
PN4
PN5
PN4
GND +3V3
GND
PN5
PN4
GND
+3V3
GND
MNT_1
7
MNT_2
8
MNT_3
9
MNT_4
10
1
2
3
5
6
4
SW0
CUS-14TB
MNT_1
7
MNT_2
8
MNT_3
9
MNT_4
10
1
2
3
5
6
4
SW1
CUS-14TB
0.01
R1
DNP
+5V
+3V3
1
3
5
6
4
2
7
9
10
8
12 11
J2
1
3
5
7
9
11
J3A
2
4
6
8
10
12
J3B
GND
+5V
+3V3
GND
PN4
PN5
PD2
PP1
PP0
PQ3
PQ2
PQ0
PQ1
PD2
PN5
PN4
TP7
GND
INA237AIDGSR/
INA238AIDGSR
Figure 6-1. SENS063 Schematic
Schematics, PCB Layout, and Bill of Materials www.ti.com
22 INA228, INA229, INA237, INA238, and INA239 EVM User’s Guide SBOU241C – APRIL 2020 – REVISED JULY 2021
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