MIC1815U Datasheet PDF - Micrel

Description
The MIC1815 is an inexpensive microprocessor supervisory circuit that monitor 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 accomodate 10% or 20% drop in 3.3V powered systems.

FEATUREs
◾ RESET Remains Valid with VCC as Low as 1.4V
◾ Precision Voltage Monitor for 10% or 20% drop in 3.3V Power Supplies
◾ Available in 3-Pin SOT23 Package
◾ 9µA Supply Current
◾ 100ms Minimum Reset Pulse Width
◾ No External Components Required

Typical Applications
◾ Portable Equipment
◾ Intelligent Instruments
◾ Critical Microprocessor Power Monitoring
◾ Printers/Computers
◾ Controllers