MAX6386XS25D6+中文资料

时间：2025-07-07 来源：未知

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字号：

19-1839; Rev 4; 4/07

SC70/µDFN, Single/Dual Low-Voltage,

Low-Power µP Reset Circuits

General Description

Features

The MAX6381–MAX6390 microprocessor (µP) supervisorycircuits monitor power-supply voltages from +1.8V to Factory-Set Reset Threshold Voltages Rangingfrom +1.58V to +4.63V in Approximately 100mV+5.0V while consuming only 3µA of supply current atIncrements

+1.8V. Whenever VCCfalls below the factory-set resetthresholds, the reset output asserts and remains assert- ±2.5% Reset Threshold Accuracy Overed for a minimum reset timeout period after VTemperature (-40°C to +125°C)above the reset threshold. Reset thresholds are availableCCrises Seven Reset Timeout Periods Available: 1ms,from +1.58V to +4.63V, in approximately 100mV incre-20ms, 140ms, 280ms, 560ms, 1120ms, ments. Seven minimum reset timeout delays ranging1200ms (min)from 1ms to 1200ms are available.

3 Reset Output Options

The MAX6381/MAX6384/MAX6387 have a push-pullActive-Low Push-Pullactive-low reset output. The MAX6382/MAX6385/Active-High Push-PullMAX6388 have a push-pull active-high reset output,Active-Low Open-Drain

and the MAX6383/MAX6386/MAX6389/MAX6390 have an open-drain active-low reset output. The Reset Output State Guaranteed Valid Down to VMAX6384/MAX6385/MAX6386 also feature aCC= 1V

debounced manual reset input (with internal pullup Manual Reset Input (MAX6384/MAX6385/MAX6386)resistor). The MAX6387/MAX6388/MAX6389 have an Auxiliary RESETauxiliary input for monitoring a second voltage. The(MAX6387/MAX6388/MAX6389)

IN

MAX6390 offers a manual reset input with a longer Vreset timeout period (1120ms or 1200ms) and a shorterCC VCCReset Timeout (1120ms or 1200ms)/ManualReset Timeout (140ms or 150ms) (MAX6390)manual reset timeout (140ms or 150ms).

The MAX6381/MAX6382/MAX6383 are available in Negative-Going VCCTransient Immunity3-pin SC70 and6-pinµDFNpackages and the Low Power Consumption of 6µA at +3.6V MAX6384–MAX6390 are available in 4-pin SC70 and

and 3µA at +1.8V Pin Compatible with

MAX809/MAX810/MAX803/MAX6326/MAX6327/MAX6328/MAX6346/MAX6347/MAX6348, ComputersCritical µP and µCand MAX6711/MAX6712/MAX6713

Controllers

Power Monitoring Tiny 3-Pin/4-Pin SC70 and 6-Pin µDFNPackages

Intelligent Instruments

Portable/Battery-Powered EquipmentOrdering Information

Dual Voltage Systems

Pin Configurations

after "XR", "XS", or "LT." Insert reset timeout delay (see ResetTimeout Delay table) after "D" to complete the part number.Sample stock 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 for availability of nonstandard versions.+Denotes a lead-free package.

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 Products

1

For pricing, delivery, and ordering information,please contact Maxim Direct at 1-888-629-4642,or visit Maxim’s website at http://.

MAX6381–MAX6390

SC70/µDFN, Single/Dual Low-Voltage, Low-Power µP Reset Circuits

MAX6381–MAX6390

ABSOLUTE MAXIMUM RATINGS

VCC to GND..........................................................-0.3V to +6.0VRESETOpen-Drain Output....................................-0.3V to +6.0VRESET, RESET (push-pull output)..............-0.3V to (VCC+ 0.3V)MR, RESET IN.............................................-0.3V to (VCC+ 0.3V)Input Current (VCC).............................................................20mAOutput Current (all pins).....................................................20mA

Continuous Power Dissipation (TA= +70°C)

3-Pin SC70 (derate 2.9mW/°C above +70°C)..............235mW4-Pin SC70 (derate 3.1mW/°C above +70°C)..............245mW6-Pin µDFN (derate 2.1mW/°C above +70°C)..........167.7mWOperating Temperature Range.........................-40°C to +125°CStorage Temperature Range.............................-65°C to +150°CLead Temperature (soldering, 10s).................................+300°C

Stresses 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 sections of the specifications is not implied. Exposure toabsolute maximum rating conditions for extended periods may affect device reliability.

ELECTRICAL CHARACTERISTICS

(VCC= full range, TA= -40°C to +125°C, unless otherwise specified. Typical values are at TA= +25°C.) (Note 1)

SC70/µDFN, Single/Dual Low-Voltage,

Low-Power µP Reset Circuits

_______________________________________________________________________________________3

MAX6381–MAX6390

SC70/µDFN, Single/Dual Low-Voltage, Low-Power µP Reset CircuitsMAX6381–MAX6390

(TA = +25°C, unless otherwise noted.)

SUPPLY CURRENT vs. TEMPERATURE

(NO LOAD)

POWER-DOWN RESET DELAY

vs. TEMPERATURE