Maxim Integrated DS1231-50N
- Part Number:
- DS1231-50N
- Manufacturer:
- Maxim Integrated
- Ventron No:
- 3279229-DS1231-50N
- Description:
- IC POWER MONITOR 50NS IND 8-DIP
- Datasheet:
- DS1231-50N
Description
The DS1231 Power Monitor Chip is a precise temperature-compensated reference circuit that provides an orderly shutdown and automatic restart of a processor-based system. It monitors high voltage inputs to power supply regulators to generate a warning signal of an impending power failure well before regulated DC voltages go out of specification. The time for processor shutdown is directly proportional to the available hold-up time of the power supply. Just before the hold-up time is exhausted, the Power Monitor unconditionally halts the processor to prevent spurious cycles by enabling Reset as Vcc falls below a selectable 5 or 10 percent threshold. When power returns, the processor is held inactive until well after power conditions have stabilized, safeguarding any nonvolatile memory in the system from inadvertent data changes.
Features
Warns processor of an impending power failure
Provides time for an orderly shutdown
Prevents processor from destroying nonvolatile memory during power transients
Automatically restarts processor after power is restored
Suitable for linear or switching power supplies
Accurate 5% or 10% Vcc monitoring
Replaces power-up reset circuitry
No external capacitors required
Optional 16-pin SOIC surface mount package
Applications
Processor-based systems
Power supply monitoring
Power failure detection
Nonvolatile memory protection
System reset
The DS1231 Power Monitor Chip is a precise temperature-compensated reference circuit that provides an orderly shutdown and automatic restart of a processor-based system. It monitors high voltage inputs to power supply regulators to generate a warning signal of an impending power failure well before regulated DC voltages go out of specification. The time for processor shutdown is directly proportional to the available hold-up time of the power supply. Just before the hold-up time is exhausted, the Power Monitor unconditionally halts the processor to prevent spurious cycles by enabling Reset as Vcc falls below a selectable 5 or 10 percent threshold. When power returns, the processor is held inactive until well after power conditions have stabilized, safeguarding any nonvolatile memory in the system from inadvertent data changes.
Features
Warns processor of an impending power failure
Provides time for an orderly shutdown
Prevents processor from destroying nonvolatile memory during power transients
Automatically restarts processor after power is restored
Suitable for linear or switching power supplies
Accurate 5% or 10% Vcc monitoring
Replaces power-up reset circuitry
No external capacitors required
Optional 16-pin SOIC surface mount package
Applications
Processor-based systems
Power supply monitoring
Power failure detection
Nonvolatile memory protection
System reset
Maxim Integrated DS1231-50N technical specifications, attributes, parameters and parts with similar specifications to Maxim Integrated DS1231-50N.
- MountThrough Hole
- Mounting TypeThrough Hole
- Package / Case8-DIP (0.300, 7.62mm)
- Operating Temperature-40°C~85°C TA
- PackagingTube
- Published1998
- JESD-609 Codee0
- Pbfree Codeno
- Part StatusObsolete
- Moisture Sensitivity Level (MSL)1 (Unlimited)
- Number of Terminations8
- ECCN CodeEAR99
- Terminal FinishTin/Lead (Sn/Pb)
- SubcategoryPower Management Circuits
- Terminal PositionDUAL
- Peak Reflow Temperature (Cel)240
- Number of Functions1
- Supply Voltage5V
- Terminal Pitch2.54mm
- Reflow Temperature-Max (s)20
- Base Part NumberDS1231
- OutputOpen Drain or Open Collector
- Pin Count8
- JESD-30 CodeR-PDIP-T8
- Operating Supply Voltage5V
- Power Supplies5V
- Number of Channels1
- Max Supply Voltage5.5V
- Min Supply Voltage4.5V
- Operating Supply Current2mA
- Max Supply Current2mA
- Adjustable ThresholdNO
- Watchdog TimerNo
- ResetActive High/Active Low
- Voltage - Threshold4.37V 4.62V
- Number of Voltages Monitored1
- Reset Timeout150ms Minimum
- Min Reset Threshold Voltage4.5V
- Max Reset Threshold Voltage4.74V
- Undervoltage Threshold4.5V
- Overvoltage Threshold4.74V
- Height Seated (Max)4.572mm
- Length9.375mm
- Width7.62mm
- RoHS StatusNon-RoHS Compliant
- Lead FreeContains Lead
The three parts on the right have similar specifications to DS1231-50N.
-
ImagePart NumberManufacturerMountMounting TypePackage / CaseOperating TemperaturePackagingPublishedJESD-609 CodePbfree CodePart StatusMoisture Sensitivity Level (MSL)Number of TerminationsECCN CodeTerminal FinishSubcategoryTerminal PositionPeak Reflow Temperature (Cel)Number of FunctionsSupply VoltageTerminal PitchReflow Temperature-Max (s)Base Part NumberOutputPin CountJESD-30 CodeOperating Supply VoltagePower SuppliesNumber of ChannelsMax Supply VoltageMin Supply VoltageOperating Supply CurrentMax Supply CurrentAdjustable ThresholdWatchdog TimerResetVoltage - ThresholdNumber of Voltages MonitoredReset TimeoutMin Reset Threshold VoltageMax Reset Threshold VoltageUndervoltage ThresholdOvervoltage ThresholdHeight Seated (Max)LengthWidthRoHS StatusLead FreeFactory Lead TimeSurface MountNumber of PinsTechnologyTime@Peak Reflow Temperature-Max (s)Qualification StatusSupply Voltage-Max (Vsup)Supply Voltage-Min (Vsup)Supply Current-Max (Isup)Reach Compliance CodeView Compare
-
DS1231-50NThrough HoleThrough Hole8-DIP (0.300, 7.62mm)-40°C~85°C TATube1998e0noObsolete1 (Unlimited)8EAR99Tin/Lead (Sn/Pb)Power Management CircuitsDUAL24015V2.54mm20DS1231Open Drain or Open Collector8R-PDIP-T85V5V15.5V4.5V2mA2mANONoActive High/Active Low4.37V 4.62V1150ms Minimum4.5V4.74V4.5V4.74V4.572mm9.375mm7.62mmNon-RoHS CompliantContains Lead-----------
-
-Through Hole8-DIP (0.300, 7.62mm)0°C~70°C TATube1998e3yesActive1 (Unlimited)8EAR99Matte Tin (Sn)Power Management CircuitsDUAL26015V2.54mm-DS1231Open Drain or Open Collector8--5V1----NO-Active High/Active Low4.37V 4.62V1150ms Minimum----4.572mm9.375mm7.62mmROHS3 CompliantLead Free6 WeeksNO8CMOS30Not Qualified5.5V4.5V2mA-
-
-Through Hole8-DIP (0.300, 7.62mm)0°C~70°C TATube-e0noObsolete1 (Unlimited)8-TIN LEAD-DUAL24015V2.54mm--Open Drain or Open Collector8R-PDIP-T8--1----NO-Active High/Active Low4.37V 4.62V1150ms Minimum----4.572mm9.375mm7.62mmNon-RoHS Compliant--NO--20COMMERCIAL5.5V4.5V--
-
-Through Hole8-DIP (0.300, 7.62mm)0°C~70°C TATube-e0noObsolete1 (Unlimited)8-TIN LEAD-DUAL24015V2.54mm--Open Drain or Open Collector8R-PDIP-T8--1----NO-Active High/Active Low4.37V 4.62V1150ms Minimum----4.572mm9.375mm7.62mmNon-RoHS Compliant--NO--20COMMERCIAL5.5V4.5V-unknown
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