MAX6381XR25D2-T

SC70单/双路低电压低功耗＆＃ 181.P复位电路 SC70 Single/Dual Low-Voltage Low-Power µ.P Reset Circuits

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