Datasheet

VBUS
VIN-
VIN+
DVDD
GND
SCL
SDA
TERMINAL BLOCKS
ADDRESS SELECT PULLUP RESISTORS
POWER JUMPER Test Points
LEDS
GND
GND
1
2
3
J4
JUMP3
1
2
3
J3
JUMP3
1
2
3
T1
TBLOCK3X_SMALL
+
C2
4.7uF
1
I2C_SCK
2
CTL/MEAS4
3
I2C_SDA
4
CTL/MEAS5
5
SPI_DOUT
6
VDUT
7
SPI_CLK
8
GND
9
SPI_CS
10
SPI_DN
J1
SM_DIG
1
2
3
J6
JUMP3
1
2
3
J5
JUMP3
1
2
R3
10k
1
2
R4
10k
1
2
3
J2
JUMP3
1
2
T2
TBLOCK2X_SMALL
C3
.1uF
1
TP1
1
TP2
1
TP3
1
TP4
1
TP5
1
TP6
1
TP7
1
TP8
1
TP9
D1
D2
1
2
R5
300
1
2
R6
600
1
TP10
1
2
T4
TBLOCK2X_SMALL
1
2
T3
TBLOCK2X_SMALL
1
2
R1
0
1
2
R2
0
C1
.1uF
A1
SCL
A2
SDA
A3
ALERT
B1
VS
C1
GND
B3
A0
D3
IN+
D2
IN-
D1
BUS
C3
A1
C2
NC
B2
NC
U1
INA231
SCL
DVDD_INT
SDA
VS
SCL
SDA
A0
VS
SCL
SDA
A1
VS VS
DVDD_INT
DVDD_EXT
VS
SCL
SDA
VS
A0
A1
VBUS
VIN-
VIN+
SDA
SCL
VS
ALERT
VS
ALERT
SCL
SDA
VBUS
VS
VIN-
VIN+
DVDD_EXT
ALERT
SDA
SCL A0
VIN+
VIN-
VBUS
A1
www.ti.com INA231EVM Documentation
6 INA231EVM Documentation
This section contains the complete bill of materials, schematic diagram, and PCB layout for the
INA231EVM.
NOTE: The board layout is not to scale. This image is intended to show how the board is laid out; it
is not intended to be used for manufacturing INA231EVM PCBs.
6.1 Schematic
Figure 27 shows the schematic for the INA231EVM.
Figure 27. INA231EVM Schematic
21
SBOU128–February 2013 INA231EVM Evaluation Board and Software Tutorial
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