5 Pin Configuration and Functions

1

CS

10

IN+

2

MOSI

9

IN–

3

ALERT

8

VBUS

4

MISO

7

GND

5

SCLK

6

VS

Not to scale

Figure 5-1. DGS Package 10-Pin VSSOP Top View

Table 5-1. Pin Functions

PIN

TYPE

DESCRIPTION

NO.

NAME

1

CS

Digital input

SPI chip select (Active Low).

2

MOSI

Digital input

SPI digital data input.

3

ALERT

Digital output

Open-drain alert output, default state is active low.

4

MISO

Digital output

SPI digital data output (push-pull).

5

SCLK

Digital input

SPI clock input.

6

VS

Power supply

Power supply, 2.7 V to 5.5 V.

7

GND

Ground

Ground.

8

VBUS

Analog input

Bus voltage input.

9

IN–

Analog input

Negative input to the device. For high-side applications, connect to load side of sense resistor. For

low-side applications, connect to ground side of sense resistor.

10

IN+

Analog input

Positive input to the device. For high-side applications, connect to power supply side of sense

resistor. For low-side applications, connect to load side of sense resistor.

6 Specifications

6.1 Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted)(1)

MIN

MAX

UNIT

Supply voltage

6

V

–40

40

V

Common-mode

–0.3

85

V

–0.3

85

V

MOSI, MISO, SCLK, ALERT

GND – 0.3

vs. + 0.3

V

Input current into any pin

5

mA

Digital output current

10

mA

Junction temperature

150

°C

Storage temperature

–65

150

°C

(1)

Stresses beyond those listed under Absolute Maximum Rating may cause permanent damage to the device. These are stress

ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated

under Recommended Operating Condition. Exposure to absolute-maximum-rated conditions for extended periods may affect device

reliability.

(2)

VIN+ and VIN– are the voltages at the IN+ and IN– pins, respectively.

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INA239-Q1

SLYS028A – MAY 2020 – REVISED JUNE 2021

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