App note: Power supply over-current and over-temperature protection

in app notes by DP | 0 comments

2378Fig01

Next up in our power supply theme is over-current and over-temperature protection for power supplies. The circuit cuts power in case one of these two events happen, it also has an external shutdown pin so the supply can be controlled by a switch or microcontroller.

When it is necessary to plug in a board into a system that is currently powered, it is critical to control the inrush current to prevent damage/system fault conditions. This application provides a simple circuit to achieve this function as well as an easy method for resetting the system and monitoring against temperature issues.

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