Processor Supervisors

Processor Supervisors are integrated circuits (ICs) which monitor microprocessors and microcontrollers (MCUs). It is essential that particular parameters are monitored by processor supervisors to ensure that these parameter boundaries are not exceeded. Exceeding some parameters can result in failure or even a dangerous result.


One of the primary things that a processor supervisor will monitor is voltage. For example, a supervisory circuit monitor may monitor voltages with a threshold of 1.6V to 5V. If the CPU’s circuit voltage falls outside of these limits, the supervisor would create an output signal, for example, a reset output.



What is the Microprocessor?


CPUs (central processing units) are computer processors which feature multiple functionalities within a single IC. Microprocessors are a type of CPU. They are a central processing unit which often forms the brains of a number of devices, such as computers. These are often crucial components within a circuit and therefore it is important to monitor them.



Types of Processor Supervisors:


  • Battery Monitors

  • Power Supply Monitors

  • Reset Circuit

  • Supervisory Circuit

  • Watchdog timer

Where are they used?


  • Computers

  • Laptops

  • Notebooks

  • Test & measurement instruments

  • Battery-powered devices

  • Power supplies

  • Automotive


...
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Description Price Number of Supervisors Output Driver Watchdog Timer Power Fail Detection Chip Enable Signals Nominal Monitored Voltage Mounting Type Package Type Pin Count Manual Reset Battery Backup Switching Maximum Reset Active Time Dimensions Height
RS Stock No. 767-3490
Mfr. Part No.MCP121T-240E/TT
BrandMicrochip
$0.81
Each (In a Pack of 10)
units
1 Active Low - Yes - - Surface Mount SOT-23B 3 - - 130ms 3.04 x 1.4 x 1.02mm 1.02mm
RS Stock No. 163-0445
Mfr. Part No.MAX708TESA-TG
$0.537
Each (On a Reel of 2500)
units
1 Active High, Active Low, Push-Pull - Yes - 3.08V Surface Mount SOIC 8 Yes Yes 200ms 5 x 4 x 1.5mm 1.5mm
RS Stock No. 923-5775
Mfr. Part No.DS1233AZ-10+
$2.42
Each (In a Tube of 75)
units
1 Active Low, Open Drain - Yes - - Surface Mount SOT-223 3 + Tab Yes - 450ms 6.5 x 3.5 x 1.8mm 1.8mm
RS Stock No. 168-5841
Mfr. Part No.STM811TW16F
$0.307
Each (On a Reel of 3000)
units
1 Active Low, Push-Pull - - - - Surface Mount SOT-143 4 Yes - 280ms 3.04 x 1.4 x 1.02mm 1.02mm
RS Stock No. 170-4333
Mfr. Part No.MCP101-450HI/TO
BrandMicrochip
$0.442
Each (In a Bag of 1000)
units
- - - - - - - - - - - - - -
RS Stock No. 662-3369
Mfr. Part No.TPS3808G15DBVT
$3.43
Each (In a Pack of 5)
units
1 Open Drain - - - - Surface Mount SOT-23 6 Yes - - 2.9 x 1.6 x 1.15mm 1.15mm
RS Stock No. 165-9050
Mfr. Part No.MAX708TCPA+
$5.54
Each (In a Tube of 50)
units
1 Active High, Active Low, Push-Pull - Yes - - Through Hole PDIP 8 Yes - 280ms 9.91 x 7.87 x 4.45mm 4.45mm
RS Stock No. 709-8114
Mfr. Part No.ADM708RARZ
$3.97
Each (In a Pack of 5)
units
1 Active High, Active Low, Push-Pull - Yes - - Surface Mount SOIC 8 Yes - 280ms 5 x 4 x 1.5mm 1.5mm
RS Stock No. 165-8983
Mfr. Part No.MAX691ACWE+
$10.17
Each (In a Tube of 46)
units
1 Active High, CMOS Yes Yes - - Surface Mount SOIC 16 - Yes 70ms 10.5 x 7.6 x 2.35mm 2.35mm
RS Stock No. 761-9664
Mfr. Part No.LTC690CS8#PBF
$15.43
Each
units
1 Active Low, CMOS Yes Yes Yes - Surface Mount SOIC 8 Yes Yes 70ms 5.004 x 3.988 x 1.5mm 1.5mm
RS Stock No. 169-308
Mfr. Part No.MAX809LEUR-T+
$5.19
Each (In a Pack of 5)
units
1 Active Low, Push-Pull - - - - Surface Mount SOT-23 3 - - 840ms 2.92 x 1.3 x 0.94mm 0.94mm
RS Stock No. 146-1161
Mfr. Part No.MAX690CPA+
$9.08
Each (In a Tube of 50)
units
1 Active Low, Push-Pull Yes Yes - - Through Hole PDIP 8 - Yes 70ms 9.91 x 7.87 x 4.45mm 4.45mm
RS Stock No. 732-6860
Mfr. Part No.MAX691AESE+
$18.22
Each
units
1 Active High, Active Low, Push-Pull Yes Yes Yes - Surface Mount SOIC 16 - Yes 280ms 10 x 4 x 1.5mm 1.5mm
RS Stock No. 660-5664
Mfr. Part No.TPS3306-18D
$4.99
Each
units
2 Active Low, Open Drain Yes Yes - - Surface Mount SOIC 8 - Yes 140ms 4.9 x 3.91 x 1.58mm 1.58mm
RS Stock No. 850-7916
Mfr. Part No.ADM6320CZ29ARJZ-R7
$2.59
Each (In a Pack of 5)
units
1 Active Low, Open Drain Yes - - - Surface Mount SOT-23 5 Yes - 280ms 3 x 1.7 x 1.3mm 1.3mm
RS Stock No. 923-5652
Mfr. Part No.MAX707CSA+
$6.52
Each (In a Tube of 100)
units
1 Active High, Active Low, Push-Pull - Yes - - Surface Mount SOIC 8 Yes - 280ms 5 x 4 x 1.5mm 1.5mm
RS Stock No. 806-2491
Mfr. Part No.MAX809SQ293T1G
$0.729
Each (On a Tape of 20)
units
1 Active Low, Push-Pull - - - 2.93V Surface Mount SC-70 3 - Yes 460ms 2.2 x 1.35 x 0.9mm 0.9mm
RS Stock No. 738-6477
Mfr. Part No.MCP130T-450I/TT
BrandMicrochip
$0.698
Each (In a Pack of 10)
units
1 Active Low, Open Drain - - - - Surface Mount SOT-23 3 - - 700ms 2.9 x 1.3 x 0.95mm 0.95mm
RS Stock No. 738-6465
Mfr. Part No.MCP130T-300I/TT
BrandMicrochip
$0.692
Each (In a Pack of 10)
units
1 Active Low, Open Drain - - - - Surface Mount SOT-23 3 - - 700ms 2.9 x 1.3 x 0.95mm 0.95mm
RS Stock No. 624-8236
Mfr. Part No.STM1001SWX6F
$0.821
Each (In a Pack of 10)
units
1 Active Low, Open Drain - - - - Surface Mount SOT-23 3 - - 280ms 3.04 x 1.4 x 1.02mm 1.02mm
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