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. 922-2149
Mfr. Part No.LM809M3-2.93/NOPB
$0.455
Each (On a Reel of 1000)
units
1 Active High, Active Low - - - - Surface Mount SOT-23 3 - - 840ms 3.048 x 1.194 x 0.94mm 0.94mm
RS Stock No. 761-6084
Mfr. Part No.LM809M3-2.93/NOPB
$0.864
Each (In a Pack of 10)
units
1 Active High, Active Low - - - - Surface Mount SOT-23 3 - - 840ms 3.048 x 1.194 x 0.94mm 0.94mm
RS Stock No. 162-9923
Mfr. Part No.UCD9081RHBT
$7.90
Each (On a Reel of 250)
units
8 Active High, Active Low - - - Adjustable Surface Mount VQFN 32 Yes - - 5.15 x 5.15 x 0.95mm 0.95mm
RS Stock No. 914-3143
Mfr. Part No.UCD9081RHBT
$11.84
Each
units
8 Active High, Active Low - - - Adjustable Surface Mount VQFN 32 Yes - - 5.15 x 5.15 x 0.95mm 0.95mm
RS Stock No. 124-6491
Mfr. Part No.BD87A29FVM-TR
BrandROHM
$1.504
Each (In a Pack of 5)
units
2 Active Low Yes - - 2.9V Surface Mount MSOP 8 - - 10.1ms 2.9 x 2.8 x 0.75mm 0.75mm
RS Stock No. 165-3589
Mfr. Part No.TC54VN4502ECB713
BrandMicrochip
$0.596
Each (On a Reel of 3000)
units
1 Active Low, Open Drain - - - - Surface Mount SOT-23A 3 - Yes - 3.1 x 1.8 x 1.3mm 1.3mm
RS Stock No. 163-0449
Mfr. Part No.MAX809SN160T1G
$0.252
Each (On a Reel of 3000)
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. 138-512
Mfr. Part No.DS1233-10+
BrandMaxim
$2.36
Each
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. 806-2481
Mfr. Part No.MAX809SN160T1G
$0.433
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. 628-3633
Mfr. Part No.TCM809LENB713
BrandMicrochip
$0.54
Each (In a Pack of 10)
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. 163-0448
Mfr. Part No.MAX809JTRG
$0.252
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. 806-2488
Mfr. Part No.MAX809JTRG
$0.612
Each (On a Tape of 25)
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. 165-9234
Mfr. Part No.DS1233Z-5+
BrandMaxim
$2.222
Each (In a Tube of 75)
units
1 Active Low, Open Drain - Yes - - Surface Mount SOT-223 3 + Tab Yes - 450ms 6.7 x 3.7 x 1.8mm 1.8mm
RS Stock No. 732-7292
Mfr. Part No.DS1233Z-5+
BrandMaxim
$3.48
Each
units
1 Active Low, Open Drain - Yes - - Surface Mount SOT-223 3 + Tab Yes - 450ms 6.7 x 3.7 x 1.8mm 1.8mm
RS Stock No. 169-308
Mfr. Part No.MAX809LEUR-T+
BrandMaxim
$5.002
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. 169-8249
Mfr. Part No.DS1233-10+
BrandMaxim
$1.967
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. 165-4879
Mfr. Part No.TCM809LENB713
BrandMicrochip
$0.388
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. 768-1533
Mfr. Part No.TC54VN4502ECB713
BrandMicrochip
$0.848
Each (On a Tape of 15)
units
1 Active Low, Open Drain - - - - Surface Mount SOT-23A 3 - Yes - 3.1 x 1.8 x 1.3mm 1.3mm
RS Stock No. 686-1785
Mfr. Part No.STM819LM6E
$3.132
Each (In a Pack of 5)
units
1 Active Low, Push-Pull - Yes - - Surface Mount SOIC 8 Yes Yes 280ms 5 x 4 x 1.5mm 1.5mm
RS Stock No. 412-412
Mfr. Part No.ADM690AARNZ
$6.34
Each
units
1 Active Low, Push-Pull Yes Yes - - Surface Mount SOIC 8 - Yes 280ms 5 x 4 x 1.5mm 1.5mm
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