We are using the LTC1153 in a design that requires short circuit detection. Our consumer product is a customizable magnetic lamp design that the user might accidentally hook up backwards or in a short. We are using a microcontroller to detect the status pin on the LTC1153, and in the event of a short, shut down the output and sound an alarm.
We are also using the IN or Enable pin of the LTC1153 as a PWM input from the microcontroller to drive the LEDs.The datasheet didn't mention anything about this application so we thought we'd give it a go. Even though it's working just fine now, we are worried about the long term reliability of this setup, and wonder if the LTC1153 IC will fail if it's constantly being shut down and back up again in rapid succession using a PWM signal.
Datasheet: www.analog.com/.../lt1153.pdf
Thank you.
