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. 145-5265
Mfr. Part No.MAX809SQ293T1G
HK$1.606
Each (On a Reel of 3000)
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. 163-0451
Mfr. Part No.MAX809SQ263T1G
HK$1.821
Each (On a Reel of 3000)
units
1 Active Low, Push-Pull - - - 2.63V Surface Mount SC-70 3 - Yes 460ms 2.2 x 1.35 x 0.9mm 0.9mm
RS Stock No. 145-4243
Mfr. Part No.MAX803SQ438T1G
HK$1.606
Each (On a Reel of 3000)
units
1 Active Low, Open Drain - - - 4.38V Surface Mount SC-70 3 - Yes 460ms 2.2 x 1.35 x 0.9mm 0.9mm
RS Stock No. 806-2481
Mfr. Part No.MAX809SN160T1G
HK$2.699
Each (In a Pack of 25)
units
1 Active Low, Push-Pull - - - 1.6V Surface Mount SOT-23 3 - Yes 460ms 3.04 x 1.4 x 1.01mm 1.01mm
RS Stock No. 163-0448
Mfr. Part No.MAX809JTRG
HK$1.518
Each (On a Reel of 3000)
units
1 Active Low, Push-Pull N N N 4V Surface Mount SOT-23 3 - Yes 460ms 3.04 x 1.4 x 1.01mm 1.01mm
RS Stock No. 122-0073
Mfr. Part No.MC33064P-5G
HK$2.136
Each (In a Bag of 2000)
units
1 - - - - - Through Hole TO-92 3 - - - 5.2 x 4.19 x 5.33mm 5.33mm
RS Stock No. 789-3777
Mfr. Part No.CAT1021WI-30-GT3
HK$6.604
Each (In a Pack of 5)
units
1 Active High, Active Low Yes - - - Surface Mount SOIC 8 Yes - 270ms 5 x 4 x 1.5mm 1.5mm
RS Stock No. 163-2442
Mfr. Part No.MAX809STRG
HK$0.911
Each (On a Reel of 3000)
units
1 Active Low, Push-Pull - - - - Surface Mount SOT-23 3 - - 460ms 2.9 x 1.3 x 0.94mm 0.94mm
RS Stock No. 806-2514
Mfr. Part No.MAX810SQ438T1G
HK$2.794
Each (In a Pack of 20)
units
1 Active High, Push-Pull - - - 4.38V Surface Mount SC-70 3 - Yes 460ms 2.2 x 1.35 x 0.9mm 0.9mm
RS Stock No. 163-0446
Mfr. Part No.MAX803SQ293D3T1G
HK$1.561
Each (On a Reel of 3000)
units
1 Active Low, Open Drain - - - 2.93V Surface Mount SC-70 3 - Yes 300ms 2.2 x 1.35 x 0.9mm 0.9mm
RS Stock No. 806-2466
Mfr. Part No.MAX708TESA-TG
HK$4.457
Each (On a Tape of 20)
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. 463-230
Mfr. Part No.NCP803SN160T1G
HK$3.177
Each (In a Pack of 10)
units
1 Active Low, Open Drain - - - - Surface Mount SOT-23 3 - - 460ms 2.9 x 1.3 x 0.94mm 0.94mm
RS Stock No. 145-3227
Mfr. Part No.MAX708TCUA-TG
HK$2.433
Each (On a Reel of 4000)
units
1 Active High, Active Low, Push-Pull - Yes - 3.08V Surface Mount MSOP 8 Yes Yes 200ms 3.1 x 3.1 x 0.95mm 0.95mm
RS Stock No. 806-2491
Mfr. Part No.MAX809SQ293T1G
HK$2.906
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. 163-2440
Mfr. Part No.MAX809LTRG
HK$1.54
Each (On a Reel of 3000)
units
1 Active Low, Push-Pull - - - - Surface Mount SOT-23 3 - - 460ms 2.9 x 1.3 x 0.94mm 0.94mm
RS Stock No. 163-0444
Mfr. Part No.MAX708SESA-TG
HK$2.774
Each (On a Reel of 2500)
units
1 Active High, Active Low, Push-Pull - Yes - 2.93V Surface Mount SOIC 8 Yes Yes 200ms 5 x 4 x 1.5mm 1.5mm
RS Stock No. 806-2475
Mfr. Part No.MAX803SQ438T1G
HK$3.244
Each (In a Pack of 20)
units
1 Active Low, Open Drain - - - 4.38V Surface Mount SC-70 3 - Yes 460ms 2.2 x 1.35 x 0.9mm 0.9mm
RS Stock No. 789-3786
Mfr. Part No.CAT1021WI-42-GT3
HK$6.632
Each (In a Pack of 5)
units
1 Active High, Active Low Yes - - - Surface Mount SOIC 8 Yes - 270ms 5 x 4 x 1.5mm 1.5mm
RS Stock No. 789-3950
Mfr. Part No.CAT872-30ULGT3
HK$3.629
Each (In a Pack of 10)
units
1 Active Low - - - - Surface Mount ULLGA 6 Yes - 83ms 1.45 x 1 x 0.35mm 0.35mm
RS Stock No. 163-0452
Mfr. Part No.MAX809SQ293D1T1G
HK$1.795
Each (On a Reel of 3000)
units
1 Active Low, Push-Pull - - - 2.93V Surface Mount SC-70 3 - Yes 3.3ms 2.2 x 1.35 x 0.9mm 0.9mm