Datasheet

Data
Clock
CurrentRegister
Two-Wire
Interface
VoltageRegister
V
IN+
ADC
INA220
GND
A0
A1
V
S
SupplyVoltage)(
V
BUS
(BusVoltageInput)
V
I
Shunt
(40mVmax
for12-bit)
4.3k
1W
W
+3.3Vto+5V
1/4WZener
orshuntreg
HCPL2300
HCPL2300
HCPL2300
4.3kW
4.3kW
4.3kW
4.3kW
SDA
SCL
+5V
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
35.7kW
13.7kW
24V
Tranzorb
PowerRegister
-48V
Supply
-48V
toLoad
V
IN-
0.1 Fm
10 Fm
0.1 Fm
0.1 Fm
0.1 Fm
-48V
Supply
0.1 Fm
From
Supply
Load
10kW
Data
(SDA)
Clock
(SCL)
´
PowerRegister
CurrentRegister
Two-Wire
Interface
VoltageRegister
V
IN+
ADC
INA220
GND
A0
A1
V
IN-
V
S
SupplyVoltage)(
V
BUS
(BusVoltageInput)
R
G
10 Fm
0.1 Fm
+3.3Vto
+5V
V
I
OPA333
100W
35.7kW
13.7kW
Shunt
R
SHUNT
5.1V
Zener
24V
Tranzorb
R
L
100W
MOSFETratedto
standoffsupplyvoltage
suchasBSS84for
upto50V
INA220
www.ti.com SBOS459D –JUNE 2009–REVISED SEPTEMBER 2010
ADDITIONAL APPLICATION IDEAS
Figure 23, Figure 24, and Figure 25 show the INA220 in additional circuit configurations for current, voltage, and
power monitoring applications.
Figure 23. –48V Telecom Current/Voltage/Power Sense with Isolation
Figure 24. 48V Telecom Current/Voltage/Power Sense
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Product Folder Link(s): INA220