INA701 datasheet(14/47 Pages) TI2

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Shunt Current (A)

0.5

1.5

2.5

3.5

4.5

5.5

-0.25

0.25

0.5

0.75

1.25

1.5

1.75

2.25

2.5

2.75

3.25

Figure 6-3. Gain Error vs Shunt Current (Full Range)

6.3.2 Safe Operating Area

The power dissipated in the device limits the maximum current that can be safely handled by the device. The

current consumed to power the device is low, therefore the primary source of heating is due to the current flow

through the internal shunt resistor. The maximum safe-operating current level shown in Figure 6-4 is set so that

the heat generated in the package is limited and the internal junction temperature of the silicon does not exceed

125°C. This data is collected from an evaluation module that uses a 2-layer board with 1oz copper power planes

to the INA701 IN+ and IN– pins.

Ambient Temperature ( C)

-40

-20

100

120

140

2.5

7.5

12.5

Figure 6-4. Maximum Shunt Current vs Temperature

CAUTION

The INA701 has a maximum junction of 125°C which must not be exceeded. Operation above 125°C

can result in permanent damage to the device.

The current measurement capability is limited by ADC full scale range of 6.225A, even though the shunt can

withstand pulse currents greater than 6A.

In applications with overcurrent transients, the peak amplitude and duration of the overcurrent event is important

to determine the device heating. Figure 6-5 shows the peak pulse current versus pulse duration that the device

can withstand before the maximum junction temperature of 125°C is exceeded. The data shown in this curve is

collected at TA = 25°C, using the INA701 evaluation module.

INA701

SBOSAM2 – AUGUST 2025

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