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INA381 Datasheet(PDF) 3 Page - Texas Instruments

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Part # INA381
Description  INA381 26-V, High-Speed, Current Sense Amplifier With Integrated Comparator
PDF  43 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

INA381 Datasheet(HTML) 3 Page - Texas Instruments

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1
IN+
10
IN±
2
VS+
9
VOUT
3
ALERT
8
CMPIN
4
RESET
7
CMPREF
5
GND
6
NC
Not to scale
1
IN+
8
IN±
2
VS+
7
VOUT
3
ALERT
6
CMPIN
4
RESET
5
CMPREF
Not to scale
Thermal Pad
3
INA381
www.ti.com
SBOS848B – DECEMBER 2017 – REVISED OCTOBER 2019
Product Folder Links: INA381
Submit Documentation Feedback
Copyright © 2017–2019, Texas Instruments Incorporated
5 Pin Configuration and Functions
DGS Package
10-Pin VSSOP
Top View
DSG Package
8-Pin WSON
Top View
Pin Functions
PIN
TYPE
DESCRIPTION
NAME
DGS
DSG
ALERT
3
3
Digital output
Overlimit alert, active low, open-drain output
CMPIN
8
6
Analog input
Signal input to the comparator
CMPREF
7
5
Analog input
Input reference to the comparator
GND
5
—
Ground
Device ground. Connect the thermal pad to the system ground. See the layout
example in Figure 54.
IN–
10
8
Analog input
Connect this pin to the load side of the shunt resistor
IN+
1
1
Analog input
Connect this pin to the supply side of the shunt resistor
NC
6
—
—
Not internal connection to device. This pin can be left floating, grounded, or
connected to the supply.
RESET
4
4
Digital input
Transparent or latch mode selection input. See the Alert Modes section for a
detailed description on pin connections.
VOUT
9
7
Analog output
Current-sense amplifier output voltage
VS+
2
2
Supply
Power supply: 2.7 V to 5.5 V
Thermal
Pad
—
Thermal
Pad
—
Ground reference for the device that is also the thermal pad used to conduct heat
from the device. Tie this pad externally to ground.



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