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 CPUs 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. 806-2481
Mfr. Part No.MAX809SN160T1G
MYR1.58
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. 667-4253
Mfr. Part No.MCP809T-270I/TT
BrandMicrochip
MYR1.84
Each (In a Pack of 10)
units
1 Active Low, Push-Pull - - - - Surface Mount SOT-23 3 - - - 2.9 x 1.3 x 0.95mm 0.95mm
RS Stock No. 189-7795
Mfr. Part No.DS1813R-10+T&R
MYR5.588
Each (On a Reel of 3000)
units
1 Active Low, Open Drain - Yes - - Surface Mount SOT-23 3 Yes - 300ms 3.04 x 1.4 x 1.02mm 1.02mm
New
RS Stock No. 193-1528
Mfr. Part No.ISL88011IH523Z-T7A
MYR13.808
Each (In a Pack of 5)
units
1 Active High - - - 2.32V Surface Mount SOT-23 5 Yes - - 3 x 1.7 x 1.3mm 1.3mm
RS Stock No. 190-4829
Mfr. Part No.DS1233MS-5+
MYR7.405
Each (In a Tube of 100)
units
1 - - Yes - 3.3V Surface Mount SOIC 8 - - 450ms 5 x 4 x 1.5mm 1.5mm
RS Stock No. 412-876
Mfr. Part No.ADM707ARZ
MYR10.43
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. 825-0929
Mfr. Part No.MCP130-450FI/TO
BrandMicrochip
MYR1.60
Each (In a Pack of 25)
units
1 Active Low, Open Drain N N N - Through Hole TO-92 3 - - - 4.95 x 4.95 x 3.94mm 3.94mm
RS Stock No. 169-8403
Mfr. Part No.DS1233-5+
MYR4.87
Each (In a Tube of 10)
units
1 Active Low, Open Drain - Yes - - Through Hole TO-92 3 Yes - 450ms 4.95 x 3.94 x 4.95mm 4.95mm
RS Stock No. 686-1618
Mfr. Part No.STM811RW16F
MYR2.244
Each (In a Pack of 10)
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. 190-1619
Mfr. Part No.MAX700CPA+
MYR30.90
Each (In a Pack of 2)
units
1 Active High, Active Low, Push-Pull - - - Adjustable Through Hole PDIP 8 Yes - 500ms 9.91 x 7.87 x 4.45mm 4.45mm
RS Stock No. 163-0455
Mfr. Part No.MAX810RTRG
MYR0.785
Each (On a Reel of 3000)
units
1 Active High, Push-Pull - - - 2.63V Surface Mount SOT-23 3 - Yes 460ms 3.04 x 1.4 x 1.01mm 1.01mm
RS Stock No. 192-2560
Mfr. Part No.MAX692ACPA+
MYR43.90
Each
units
1 Active Low, Push-Pull Yes Yes - - Through Hole PDIP 8 - Yes 280ms 9.91 x 7.87 x 4.45mm 4.45mm
RS Stock No. 190-1620
Mfr. Part No.MAX706CSA+
MYR19.075
Each (In a Pack of 2)
units
1 Active Low, Push-Pull Yes Yes - - Surface Mount SOIC 8 Yes - 280ms 5 x 4 x 1.5mm 1.5mm
RS Stock No. 732-7012
Mfr. Part No.MAX803LEXR+T
MYR13.13
Each
units
1 Active Low, Open Drain - - - - Surface Mount SC-70 3 - - 840ms 2.2 x 1.35 x 1mm 1mm
RS Stock No. 190-4843
Mfr. Part No.MAX6371KA+T
MYR8.748
Each (On a Reel of 2500)
units
1 Active Low, Open Drain, Push-Pull Yes - - - Surface Mount SOT-23 8 - - - 3 x 1.75 x 1.3mm 1.3mm
RS Stock No. 186-9402
Mfr. Part No.MC33164P-5G
MYR2.85
Each (In a Pack of 25)
units
1 Open Collector - - - - Through Hole TO-92 3 - - - 5.2 x 4.19 x 5.33mm 5.33mm
RS Stock No. 732-7009
Mfr. Part No.MAX793SCSE+
MYR37.66
Each
units
1 Active High, Active Low, Open Drain, Push-Pull Yes Yes Yes - Surface Mount SOIC 16 Yes Yes 280ms 10 x 4 x 1.5mm 1.5mm
RS Stock No. 165-3307
Mfr. Part No.TCM809RENB713
BrandMicrochip
MYR1.06
Each (On a Reel of 3000)
units
1 Active Low, Push-Pull - - - - Surface Mount SOT-23B 3 - - 560ms 3.05 x 1.4 x 1.02mm 1.02mm
RS Stock No. 190-5649
Mfr. Part No.MAX690AESA+T
MYR33.90
Each (In a Pack of 2)
units
1 - - Yes - - Surface Mount SOIC 8 - - - 5 x 4 x 1.5mm 1.5mm
RS Stock No. 912-6952
Mfr. Part No.MCP809T-270I/TT
BrandMicrochip
MYR1.39
Each (On a Reel of 3000)
units
1 Active Low, Push-Pull - - - - Surface Mount SOT-23 3 - - - 2.9 x 1.3 x 0.95mm 0.95mm
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