1

2

3

A

B

Not to scale

IN+

VS

OUT

IN±

GND

ENABLE

3

INA191

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SLYS020A – FEBRUARY 2019 – REVISED APRIL 2019

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5 Pin Configuration and Functions

YFD Package

6-Pin DSBGA

Top View

Pin Functions

PIN

TYPE

DESCRIPTION

NAME

NO.

ENABLE

B3

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

GND

B2

Analog

Ground

IN+

A1

Analog input

Current-shunt monitor positive input. For high-side applications, connect this pin to the bus

voltage side of the sense resistor. For low-side applications, connect this pin to the load

side of the sense resistor.

IN–

B1

Analog input

Current-shunt monitor negative input. For high-side applications, connect this pin to the load

side of the sense resistor. For low-side applications, connect this pin to the ground side of

the sense resistor.

OUT

A3

Analog output

This pin provides an analog voltage output that is the amplified voltage difference from the

IN+ to the IN– pins.

VS

A2

Analog

Power supply, 1.7 V to 5.5 V