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. 471-370
Mfr. Part No.LTC1326CS8-2.5#PBF
PHP284.89
Each
units
3 - - - - - Surface Mount SOIC 8 - - - 5 x 3.99 x 1.48mm 1.48mm
RS Stock No. 183-1820
Mfr. Part No.ADM693ANZ
PHP169.209
Each (In a Tube of 25)
units
1 Active High, Active Low Yes Yes Yes 5V Through Hole PDIP 16 - Yes 70ms 21.33 x 7.11 x 4.95mm 4.95mm
RS Stock No. 923-5722
Mfr. Part No.MAX824MEUK+T
PHP117.81
Each (On a Reel of 2500)
units
1 Active High, Active Low, Push-Pull Yes - - - Surface Mount SOT-23 5 - - 280ms 3 x 1.75 x 1.3mm 1.3mm
RS Stock No. 158-2368
Mfr. Part No.ADM810MARTZ-REEL7
PHP53.556
Each (On a Reel of 3000)
units
1 Active High, Push-Pull - - - - Surface Mount SOT-23 3 - - 840ms 2.9 x 1.3 x 1.02mm 1.02mm
RS Stock No. 190-1590
Mfr. Part No.MAX705CSA+
PHP417.00
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. 662-3230
Mfr. Part No.TPS3613-01DGS
PHP205.28
Each
units
1 Active High, Active Low - - Yes Adjustable Surface Mount MSOP 10 Yes Yes 140ms 3 x 3 x 1.02mm 1.02mm
RS Stock No. 686-1491
Mfr. Part No.STM6322SWY6F
PHP46.594
Each (In a Pack of 5)
units
1 Active High, Active Low, Open Drain, Push-Pull - - - - Surface Mount SOT-23 5 Yes - 280ms 2.9 x 1.6 x 1.15mm 1.15mm
RS Stock No. 686-1595
Mfr. Part No.STM1818TWX7F
PHP34.55
Each (In a Pack of 10)
units
1 Active Low, Open Drain - - - - Surface Mount SOT-23 3 Yes - - 3.04 x 1.4 x 1.02mm 1.02mm
RS Stock No. 192-2271
Mfr. Part No.MAX692ACPA+
PHP369.017
Each (In a Tube of 50)
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. 190-5879
Mfr. Part No.MAX6818EAP+T
PHP275.79
Each (In a Pack of 2)
units
1 Active Low - - - - Surface Mount SSOP 20 - - - 7.33 x 5.38 x 1.78mm 1.78mm
RS Stock No. 412-876
Mfr. Part No.ADM707ARZ
PHP133.88
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. 622-8636
Mfr. Part No.MAX791CSE+
PHP670.43
Each
units
1 Active Low, Open Drain Yes Yes Yes - Surface Mount SOIC 16 Yes Yes 280ms 10 x 4 x 1.5mm 1.5mm
RS Stock No. 190-4820
Mfr. Part No.DS1231-20+
PHP282.744
Each (In a Tube of 50)
units
1 Active High, Active Low, Open Drain - Yes - 5V Through Hole PDIP 8 - - - 9.91 x 7.87 x 4.45mm 4.45mm
RS Stock No. 190-4831
Mfr. Part No.DS1233Z-15+
PHP86.417
Each (In a Tube of 75)
units
1 - - Yes - 3.3V Surface Mount SOT-223 3 + Tab - - 450ms 6.7 x 3.7 x 1.8mm 1.8mm
RS Stock No. 190-5698
Mfr. Part No.MAX811TEUS+T
PHP164.998
Each (In a Pack of 5)
units
1 - - - - - Surface Mount SOT-23 4 Yes - 560ms 3.04 x 1.4 x 1.07mm 1.07mm
RS Stock No. 162-4891
Mfr. Part No.TPS3828-50DBVT
PHP69.30
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. 165-9049
Mfr. Part No.MAX708RCPA+
PHP315.903
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. 169-7365
Mfr. Part No.APX809-40SAG-7
PHP4.88
Each (On a Reel of 3000)
units
1 Active Low - - - - Surface Mount SOT-23 3 - - 280ms 3 x 1.4 x 1mm 1mm
RS Stock No. 190-5689
Mfr. Part No.MAX691AEWE+
PHP595.48
Each
units
1 - Yes Yes - - Surface Mount SOIC 16 - - 280ms 10 x 4 x 1 .5mm 1.5mm
RS Stock No. 662-3331
Mfr. Part No.TPS3705-33DR
PHP114.45
Each (In a Pack of 5)
units
2 Active High, Active Low Yes Yes - - Surface Mount SOIC 8 Yes Yes 280ms 4.9 x 3.91 x 1.58mm 1.58mm