JAJSNR9B April 2016 – April 2022 INA301-Q1
PRODUCTION DATA
The device is set to transparent mode when the RESET pin is pulled low, thus allowing the output alert state to change and follow the input signal with respect to the programmed alert threshold. For example, when the differential input signal rises above the alert threshold, the ALERT output pin is pulled low. As soon as the differential input signal drops below the alert threshold, the output returns to the default high-output state. A common implementation using the device in transparent mode is to connect the ALERT pin to a hardware interrupt input on a microcontroller. As soon as an overcurrent condition is detected and the ALERT pin is pulled low, the hardware interrupt input detects the output-state change, and the microcontroller can begin to make changes to the system operation required to address the overcurrent condition. Under this configuration, the ALERT pin transition from high to low is captured by the microcontroller so that the output can return to the default high state when the overcurrent event is removed.