INA191 datasheet(3/42 Pages) TI2

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5 Pin Configuration and Functions

Not to scale

IN+

OUT

IN±

GND

ENABLE

Figure 5-1. INA191 YFD Package 6-Pin DSBGA Top View

Table 5-1. Pin Functions (INA191)

TYPE

DESCRIPTION

NAME

NO.

ENABLE

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

Analog

Ground.

IN+

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–

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

Analog output

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

IN+ to the IN– pins.

Analog

Power supply, 1.7 V to 5.5 V.

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INA191, INA2191

SLYS020C – FEBRUARY 2019 – REVISED AUGUST 2021

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