Datasheet

GND
V
S+
V
BUS
SCL
1
2
3
4
5
10
9
8
7
6
A1
A0
SDA
Alert
VIN+
VIN-
ADC
´
´
Shunt Voltage
Channel
Bus Voltage
Channel
Shunt Voltage
(1)
Data Registers
Calibration
(2)
Current
(1)
Bus Voltage
(1)
Power
(1)
INA226
www.ti.com SBOS547 –JUNE 2011
PIN CONFIGURATIONS
DGS PACKAGE
MSOP-10
(Top View)
PIN DESCRIPTIONS
MSOP-10
(DGS)
PIN NO NAME DESCRIPTION
1 A1 Address pin. Connect to GND, SCL, SDA, or V
S
. Table 7 shows pin settings and corresponding addresses.
2 A0 Address pin. Connect to GND, SCL, SDA, or V
S
. Table 7 shows pin settings and corresponding addresses.
3 Alert Multi-functional alert, open-drain output.
4 SDA Serial bus data line, open-drain input/output.
5 SCL Serial bus clock line, open-drain input.
6 V
S+
Power supply, 2.7V to 5.5V.
7 GND Ground.
8 V
BUS
Bus voltage input.
9 VIN– Negative differential shunt voltage. Connect to negative side of shunt resistor.
10 VIN+ Positive differential shunt voltage. Connect to positive side of shunt resistor.
REGISTER BLOCK DIAGRAM
(1) Read-only
(2) Read/write
Figure 1. INA226 Register Block Diagram
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