Automotive Surge Protection Circuit

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The circuit of this SPICE simulation, based on LTC4365, protects application devices, as 12 Volt automotive system, from too high, too low, or negative input voltages. It can withstand voltages from –40V and 60V. The overvoltage and undervoltage can be set simply by using an external resistive divider. The integrated controls two external N-channel mosfets gate voltages to mantain the output within the operating range.


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