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1、MAX6387XS26D7-T中文资料 元器件交易网19-1839; Rev 1; 04/01SC70, Single/Dual Low-Voltage, Low-Power P Reset CircuitsGeneral DescriptionFeaturesThe MAX6381MAX6390 microprocessor (P) supervisorycircuits monitor power supply voltages from +1.8V tooFactory-Set Reset Threshold Voltages Ranging+5.0V while consuming o
2、nly 3A of supply current atfrom +1.58V to +4.63V in Approximately 100mV+1.8V. Whenever VCCfalls below the factory-set resetIncrementsthresholds, the reset output asserts and remains assert-o2.5% Reset Threshold Accuracy Overed for a minimum reset timeout period after VCCrisesTemperature (-40C to +12
3、5C)above the reset threshold. Reset thresholds are availablefrom +1.58V to +4.63V, in approximately 100mV incre-oSeven Reset Timeout Periods Available: 1ms,ments. Seven minimum reset timeout delays ranging20ms, 140ms, 280ms, 560ms, 1120ms, from 1ms to 1200ms are available.1200ms (min)The MAX6381/MAX
4、6384/MAX6387 have a push-pullo3 Reset Output Optionsactive-low reset output. The MAX6382/MAX6385/Active-Low Push-PullMAX6388 have a push-pull active-high reset output,Active-High Push-Pulland the MAX6383/MAX6386/MAX6389/MAX6390 have an open-drain active-low reset output. TheActive-Low Open-DrainMAX6
5、384/MAX6385/MAX6386 also feature aoReset Output State Guaranteed Valid debounced manual reset input (with internal pullupDown to VCC= 1Vresistor). The MAX6387/MAX6388/MAX6389 have anauxiliary input for monitoring a second voltage. TheoManual Reset Input (MAX6384/MAX6385/MAX6386)MAX6390 offers a manu
6、al reset input with a longer VoAuxiliary RESETINreset timeout period (1120ms or 1200ms) and a shorterCC(MAX6387/MAX6388/MAX6389)manual reset timeout (140ms or 150ms).oVCCReset Timeout (1120ms or 1200ms)/ManualThe MAX6381/MAX6382/MAX6383 are available in 3-pinReset Timeout (140ms or 150ms) (MAX6390)S
7、C70 packages and the MAX6384MAX6390 are avail-able in 4-pin SC70 packages.oNegative-Going VCCTransient Immunity_ApplicationsoLow Power Consumption of 6A at +3.6V and 3A at +1.8VComputersoPin Compatible withControllersMAX809/MAX810/MAX803/MAX6326/MAX6327/Intelligent InstrumentsMAX6328/MAX6346/MAX6347
8、/MAX6348, Critical P and C Power Monitoringand MAX6711/MAX6712/MAX6713Portable/Battery-Powered EquipmentoTiny 3-Pin SC70 and 4-Pin SC70 PackagesDual Voltage SystemsPin ConfigurationsNote:Insert reset threshold suffix (see Reset Threshold table)after XR or XS. Insert reset timeout delay (see Reset Ti
9、meoutDelay table) after D to complete the part number. Samplestock is generally held on standard versions only (seeStandard Versions table). Standard versions have an orderincrement requirement of 2500 pieces. Nonstandard versionshave an order increment requirement of 10,000 pieces.Contact factory f
10、or availability of nonstandard versions.*MAX6390 is available with D4 or D7 timing only.Ordering Information continuedat end of data sheet.Typical Operating Circuit appears at end of data sheet.Selector Guide appears at end of data sheet._Maxim Integrated Products1For pricing, delivery, and ordering
11、 information,please contact Maxim/Dallas Direct!at 1-888-629-4642, or visit Maxims website at .MAX6381MAX6390SC70, Single/Dual Low-Voltage, Low-Power P Reset CircuitsMAX6381MAX6390ABSOLUTE MAXIMUM RATINGSVCC to GND.-0.3V to +6.0VRESETOpen-Drain Output.-0.3V to +6.0VRESET, RESET (Push-Pull Output).-0
12、.3V to (VCC+ 0.3V)MR, RESET IN.-0.3V to (VCC+ 0.3V)Input Current (VCC).20mAOutput Current (All Pins).20mAContinuous Power Dissipation (TA= +70C)3-Pin SC70 (derate 2.9mW/C above +70C).235mW4-Pin SC70 (derate 3.1mW/C above +70C).245mWOperating Temperature Range.-40C to +125CStorage Temperature Range.-
13、65C to +150CLead Temperature (soldering, 10s).+300CStresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functionaloperation of the device at these or any other conditions beyond those indicated in the operational s
14、ections of the specifications is not implied. Exposure toabsolute maximum rating conditions for extended periods may affect device reliability.ELECTRICAL CHARACTERISTICSSC70, Single/Dual Low-Voltage, Low-Power P Reset Circuits_3MAX6381MAX6390SC70, Single/Dual Low-Voltage, Low-Power P Reset CircuitsMAX6381MAX6390Typical Operating Characteristics(TA = +25C, unless otherwise noted.)SUPPLY CURRENT vs. TEMPERATURE(NO LOAD)POWE
