VCEsat-monitoring makes use of the relationship between drain source current and forward voltage indicated in the FET datasheets (output characteristic).The drain source voltage is detected by a fast high-voltage diode and compared to a reference value. If the reference value is exceeded, the error memory will be set and the transistor will be turned off. The transistor switch has to turn off within 10µs to prevent damage. Hope you found this usefull if so dont forget to press the helpedme button below.
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