The MIC1815 is an inexpensive microprocessor supervisory circuit that monitors power supplies in microprocessor based systems.

The function of these devices is to assert a reset if the power supply drops below a designated reset threshold level. Several different reset threshold levels are available to accommodate 10% or 20% drop in 3.3V powered systems.

The MIC1815 has an active low /RESET output. The reset output is guaranteed to remain asserted for a minimum of 100ms after VCC has risen above the designated reset threshold level. The MIC1815 comes in a 3-pin SOT-23 package.

   Precision voltage monitor for 10% or 20% drop in 3.3V power supplies

   /RESET remains valid with VCC as low as 1V

   5µA supply current

   100ms minimum reset pulse width

   No external components required

   Available in 3-pin SOT-23 package