High_supply_voltage_dump_circuit

Published:2009/7/24 5:21:00 Author:Jessie | From:SeekIC

These circuits remove the power supply when there is a high-voltage overload. For circuits consuming less than 5 mA, the ICL8211 can drive the load directly. For higher load currents, a pnp or Darlington pair is required as shown. Resistors R1 and R2 set up the disconnect voltage, and R3 provides optional voltage hysteresis.



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