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INA190 Datasheet(PDF) 3 Page - Texas Instruments

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Part # INA190
Description  Bidirectional, Low-Power, Zero-Drift, Wide Dynamic Range, Precision Current-Sense Amplifier With Enable
PDF  41 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

INA190 Datasheet(HTML) 3 Page - Texas Instruments

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1
NC
2
NC
6
VS
7
ENABLE
Not to scale
1
REF
6
OUT
2
GND
5
IN±
3
VS
4
IN+
Not to scale
3
INA190
www.ti.com
SBOS863C – MARCH 2018 – REVISED APRIL 2019
Product Folder Links: INA190
Submit Documentation Feedback
Copyright © 2018–2019, Texas Instruments Incorporated
5 Pin Configuration and Functions
DCK Package
6-Pin SC70
Top View
RSW Package
10-Pin Thin UQFN
Top View
Pin Functions
PIN
TYPE
DESCRIPTION
NAME
DCK
RSW
ENABLE
—
7
Digital input
Enable Pin. When this pin is driven to VS, the device is on and functions as a
current sense amplifier. When this pin is driven to GND, the device is off, the supply
current is reduced, and the output is placed in a high-impedance state. This pin
must be driven externally, or connected to VS if not used.
GND
2
9
Analog
Ground
IN–
5
4
Analog input
Current-sense amplifier negative input. For high-side applications, connect to load
side of sense resistor. For low-side applications, connect to ground side of sense
resistor.
IN+
4
3
Analog input
Current-sense amplifier positive input. For high-side applications, connect to bus
voltage side of sense resistor. For low-side applications, connect to load side of
sense resistor.
NC
—
1, 2, 5
—
Not internally connected. Either float these pins or connect to any voltage between
GND and VS.
OUT
6
10
Analog output
OUT pin. This pin provides an analog voltage output that is the gained up voltage
difference from the IN+ to the IN– pins, and is offset by the voltage applied to the
REF pin.
REF
1
8
Analog input
Reference input. Enables bidirectional current sensing with an externally applied
voltage.
VS
3
6
Analog
Power supply, 1.7 V to 5.5 V



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