INA381A2IDSGR

The available amplifier gains for the INA381 device are as follows: - INA381A1: 20V/V - INA381A2: 50V/V - INA381A3: 100V/V - INA381A4: 200V/V [6]

The common-mode input range of the INA381 device is from -0.2V to 26V. [7]

The INA381 device is designed for detecting overcurrent conditions in an application. It is targeted towards unidirectional overcurrent detection of a single threshold, but can also be paired with additional devices and circuitry to create more complex monitoring functional blocks. The device can trigger a single GPIO pin on a microcontroller for device alert functions. The output of the AND gate is high if neither overcurrent limit thresholds are exceeded, and a low output state indicates that either the positive or negative overcurrent limit is surpassed. The device can be used in a bidirectional configuration by using two INA381 devices and an output control circuit to detect if one of the two alerts is exceeded. The maximum current expected through the shunt resistor is 20A in either the forward or reverse direction. [9]