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Intelligent Power Switches Slide 9

Even in the event of a short circuit between the output of the IPS and the ground, the current will be limited without damaging the silicon. This is maybe the most important feature and differentiation with automotive IPS. If the current limit is too high, this can destroy the load and even burn the board. Typically, for a standard current of 0.7 A, the current limit will be slightly more than 1 A. In addition, for a standard current of 1 A, the current limit is roughly 1.5 A. An optimized current limit is also very important for good thermal management. Indeed, a high current will increase the temperature in the package and the thermal shut down will be reached faster.

PTM Published on: 2011-09-07