´

PowerRegister

CurrentRegister

Two-Wire

Interface

VoltageRegister

V

S

(SupplyVoltage)

ADC

INA220

GND

V

I

V

IN+

V

IN-

A0

A1

SDA

DATA

SCL

CLK

C

0.1 F

BYPASS

m

+3.3Vto

+5V

BusVoltageInput

R1

F

R2

F

C

F

Load

Address

Select

Shunt

(40mV

max

for

12-bit)

Battery

INA220

SBOS459D – JUNE 2009 – REVISED SEPTEMBER 2010

www.ti.com

Figure 25. General Source Low-Side Sensing

space

REVISION HISTORY

NOTE: Page numbers for previous revisions may differ from page numbers in the current version.

Changes from Revision C (September, 2009) to Revision D

Page

•

Changed High Accuracy feature bullet from 1% to 0.5% for B-grade device ....................................................................... 1

•

Added new paragraph to Description section regarding A- and B-grade versions of the device ......................................... 1

•

Added new row to Packaging Information table to show new B-grade device ..................................................................... 2

•

Added B-grade columns in the Electrical Characteristics for min, typ and max values ....................................................... 3

•

Changed Current Sense Gain Error over temperature value and unit from "10 ppm/°C" to "1m%/°C" ............................... 3

•

Added new section ............................................................................................................................................................. 22

Changes from Revision B (June, 2009) to Revision C

Page

•

Changed specified temperature range from –25°C to –40°C ............................................................................................... 3

•

Changed Offset voltage (RTI) vs Temperature min specification from 0.1mV/°C to 0.16mV/°C ........................................... 3

•

Changed specified temperature range from –25°C to –40°C ............................................................................................... 4

•

Changed specified temperature range from –25°C to –40°C ............................................................................................... 4

•

Updated Typical Characterstics: Figure 2, Figure 3, Figure 4, Figure 5 .............................................................................. 6

•

Updated Typical Characterstics: Figure 8, Figure 9 ............................................................................................................. 7

32

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