1

NC

2

NC

6

VS

7

ENABLE

Not to scale

3

INA190

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SBOS863B – MARCH 2018 – REVISED SEPTEMBER 2018

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5 Pin Configuration and Functions

RSW Package

10-Pin Thin UQFN

Top View

Pin Functions

PIN

I/O

DESCRIPTION

NAME

NO.

ENABLE

7

Digital input

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

GND

9

Analog

Ground

IN–

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+

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

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

8

Analog input

Reference input. Enables bidirectional current sensing with an externally applied voltage.

VS

6

Analog

Power supply, 1.7 V to 5.5 V