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. 165-3363
Mfr. Part No.MCP1317T-29LE/OT
BrandMicrochip
HK$3.951
Each (On a Reel of 3000)
units
1 Active High, Push-Pull Yes - - - Surface Mount SOT-23 5 Yes - 2240ms 3.1 x 1.8 x 1.3mm 1.3mm
RS Stock No. 738-6297
Mfr. Part No.MCP1317T-29LE/OT
BrandMicrochip
HK$5.13
Each (In a Pack of 5)
units
1 Active High, Push-Pull Yes - - - Surface Mount SOT-23 5 Yes - 2240ms 3.1 x 1.8 x 1.3mm 1.3mm
RS Stock No. 162-4891
Mfr. Part No.TPS3828-50DBVT
HK$10.325
Each (On a Reel of 250)
units
1 Open Drain Yes - - - Surface Mount SOT-23 5 Yes - - 2.9 x 1.6 x 1.15mm 1.15mm
RS Stock No. 517-1141
Mfr. Part No.TPS3828-50DBVT
HK$13.884
Each (In a Pack of 5)
units
1 Open Drain Yes - - - Surface Mount SOT-23 5 Yes - - 2.9 x 1.6 x 1.15mm 1.15mm
RS Stock No. 168-6347
Mfr. Part No.STM6824RWY6F
HK$3.03
Each (On a Reel of 3000)
units
1 Active High, Active Low, Push-Pull Yes - - - Surface Mount SOT-23 5 - - 280ms 2.9 x 1.6 x 1.15mm 1.15mm
RS Stock No. 686-1561
Mfr. Part No.STM6824RWY6F
HK$6.788
Each (In a Pack of 5)
units
1 Active High, Active Low, Push-Pull Yes - - - Surface Mount SOT-23 5 - - 280ms 2.9 x 1.6 x 1.15mm 1.15mm
RS Stock No. 165-9266
Mfr. Part No.MAX706TCSA+
HK$60.69
Each (In a Tube of 100)
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. 732-6927
Mfr. Part No.MAX706TCSA+
HK$59.33
Each
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. 662-3387
Mfr. Part No.TPS3813I50DBVT
HK$16.26
Each (In a Pack of 5)
units
1 Open Drain Yes - - - Surface Mount SOT-23 6 - - - 2.9 x 1.6 x 1.15mm 1.15mm
RS Stock No. 122-0666
Mfr. Part No.APX809-26SAG-7
HK$0.729
Each (On a Reel of 3000)
units
1 Active Low, Push-Pull - - - - Surface Mount SOT-23 3 - - 280ms 3 x 1.4 x 1mm 1mm
RS Stock No. 144-5852
Mfr. Part No.TCM809JENB713
BrandMicrochip
HK$1.359
Each (On a Reel of 3000)
units
1 Active Low - - - - Surface Mount SOT-23B 3 - - 560ms 3.04 x 1.4 x 1.02mm 1.02mm
RS Stock No. 173-492
Mfr. Part No.MAX812LEUS+T
HK$24.408
Each (In a Pack of 5)
units
1 Active High, Push-Pull - - - - Surface Mount SOT-143 4 Yes - 560ms 2.92 x 1.3 x 0.94mm 0.94mm
RS Stock No. 121-8971
Mfr. Part No.TPS3808G01DBVT
HK$11.501
Each (On a Reel of 250)
units
1 Open Drain - - - Adjustable Surface Mount SOT-23 6 Yes - - 2.9 x 1.6 x 1.15mm 1.15mm
RS Stock No. 168-7321
Mfr. Part No.STM809TWX6F
HK$0.931
Each (On a Reel of 3000)
units
1 Active Low, Push-Pull - - - - Surface Mount SOT-23 3 - - 280ms 3.04 x 1.4 x 1.02mm 1.02mm
RS Stock No. 823-4311
Mfr. Part No.TCM809JENB713
BrandMicrochip
HK$2.337
Each (In a Pack of 50)
units
1 Active Low - - - - Surface Mount SOT-23B 3 - - 560ms 3.04 x 1.4 x 1.02mm 1.02mm
RS Stock No. 169-7378
Mfr. Part No.APX803-29SRG-7
HK$0.958
Each (On a Reel of 3000)
units
1 Active Low - - - - Surface Mount SOT-23R 3 - - 280ms 3 x 1.4 x 1mm 1mm
RS Stock No. 165-8986
Mfr. Part No.MAX695CWE+
HK$68.60
Each (In a Tube of 46)
units
1 Active High, Active Low, Push-Pull Yes Yes Yes - Surface Mount SOIC W 16 - Yes 280ms 10.5 x 7.6 x 2.35mm 2.35mm
RS Stock No. 146-0980
Mfr. Part No.MAX812LEUS+T
HK$18.654
Each (On a Reel of 2500)
units
1 Active High, Push-Pull - - - - Surface Mount SOT-143 4 Yes - 560ms 2.92 x 1.3 x 0.94mm 0.94mm
RS Stock No. 523-7392
Mfr. Part No.ADM705ANZ
HK$21.82
Each
units
1 Active Low, Push-Pull Yes Yes - - Through Hole PDIP 8 Yes - 280ms 9.27 x 7.24 x 3.43mm 3.43mm
RS Stock No. 667-4262
Mfr. Part No.TC1232CPA
BrandMicrochip
HK$11.44
Each (In a Pack of 5)
units
1 Active High, Active Low, Open Drain, Push-Pull Yes Yes - - Through Hole PDIP 8 Yes - 1000ms 10.16 x 6.6 x 4.06mm 4.06mm