General Description
●The MAX6381–MAX6390 microprocessor (µP) supervisory circuits monitor power-supply voltages from +1.8V to
●+5.0V while consuming only 3µA of supply current at +1.8V. Whenever VCC falls below the factory-set reset thresholds, the reset output asserts and remains assert ed for a minimum reset timeout period after VCC rises
●above the reset threshold. Reset thresholds are available from +1.58V to +4.63V, in approximately 100mV incre
●ments. Seven minimum reset timeout delays ranging from 1ms to 1200ms are available.
●Features
●♦ Factory-Set Reset Threshold Voltages Ranging from +1.58V to +4.63V in Approximately 100mV Increments
●♦ ±2.5% Reset Threshold Accuracy Over Temperature (-40°C to +125°C)
●♦ Seven Reset Timeout Periods Available: 1ms,20ms, 140ms, 280ms, 560ms, 1120ms,1200ms (min)
●♦ 3 Reset Output Options
● Active-Low Push-Pull
● Active-High Push-Pull
● Active-Low Open-Drain
●♦ Reset Output State Guaranteed Valid Down to VCC = 1V
●♦ Manual Reset Input (MAX6384/MAX6385/MAX6386)
●♦ Auxiliary RESET IN
●(MAX6387/MAX6388/MAX6389)
●♦ VCC Reset Timeout (1120ms or 1200ms)/Manual Reset Timeout (140ms or 150ms) (MAX6390)
●♦ Negative-Going VCC Transient Immunity
●♦ Low Power Consumption of 6µA at +3.6V and 3µA at +1.8V
●♦ Pin Compatible with
●MAX809/MAX810/MAX803/MAX6326/MAX6327/ MAX6328/MAX6346/MAX6347/MAX6348, and MAX6711/MAX6712/MAX6713
●♦ Tiny 3-Pin/4-Pin SC70 and 6-Pin µDFN Packages
●Applications
●Computers
●Controllers
●Intelligent Instruments
●Critical µP and µC
●Power Monitoring
●Portable/Battery
●Powered Equipment
●Dual Voltage Systems
