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. 122-0667
Mfr. Part No.APX809-29SAG-7
HK$0.796
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. 686-1785
Mfr. Part No.STM819LM6E
HK$16.272
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. 662-3242
Mfr. Part No.TPS3619-33DGK
HK$22.386
Each (In a Pack of 5)
units
1 Active Low - Yes - - Surface Mount MSOP 8 Yes Yes 140ms 3 x 3 x 0.97mm 0.97mm
RS Stock No. 767-3488
Mfr. Part No.MCP120T-485I/TT
BrandMicrochip
HK$3.145
Each (On a Tape of 10)
units
1 Open Drain - Yes - - Surface Mount SOT-23 3 - - 10µs 3.04 x 1.4 x 1.02mm 1.02mm
RS Stock No. 165-3520
Mfr. Part No.MCP130T-485I/TT
BrandMicrochip
HK$2.517
Each (On a Reel of 3000)
units
1 Open Drain - Yes - - Surface Mount SOT-23 3 - - 10µs 3.04 x 1.4 x 1.02mm 1.02mm
RS Stock No. 914-3143
Mfr. Part No.UCD9081RHBT
HK$57.71
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. 145-6886
Mfr. Part No.ADM707ARZ
HK$14.284
Each (In a Tube of 98)
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. 622-8557
Mfr. Part No.MAX706CSA+
HK$30.97
Each
units
1 Active Low, Push-Pull Yes Yes - - Surface Mount SOIC 8 Yes - 280ms 5 x 4 x 1.5mm 1.5mm
New
RS Stock No. 190-4839
Mfr. Part No.MAX16025TE+
HK$27.085
Each (In a Tube of 75)
units
1 Open Drain - - - - Surface Mount TQFN 16 Yes - 260ms 4.1 x 4.1 x 0.75mm 0.75mm
RS Stock No. 162-9299
Mfr. Part No.CAT872-30ULGT3
HK$1.881
Each (On a Reel of 3000)
units
1 Active Low - - - - Surface Mount ULLGA 6 Yes - 83ms 1.45 x 1 x 0.35mm 0.35mm
RS Stock No. 686-1687
Mfr. Part No.STM809MWX6F
HK$2.435
Each (In a Pack of 25)
units
1 Active Low, Push-Pull - - - - Surface Mount SOT-23 3 - - 280ms 3.04 x 1.4 x 1.02mm 1.02mm
New
RS Stock No. 190-1536
Mfr. Part No.MAX691ACPE+
HK$90.52
Each
units
1 Active High, Active Low, Open Drain Yes Yes Yes - Through Hole PDIP 16 - Yes 280ms 19.43 x 7.87 x 4.45mm 4.45mm
RS Stock No. 165-9033
Mfr. Part No.MAX807LCPE+
HK$39.694
Each (In a Tube of 25)
units
1 Active High, Active Low Yes Yes Yes - Through Hole PDIP 16 Yes Yes 280ms 19.43 x 7.87 x 4.45mm 4.45mm
RS Stock No. 171-1866
Mfr. Part No.MAX690ACSA+
HK$68.45
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
New
RS Stock No. 190-4820
Mfr. Part No.DS1231-20+
HK$46.414
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. 146-0988
Mfr. Part No.MAX690ACPA+
HK$45.95
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. 738-6522
Mfr. Part No.MCP111T-450E/TT
BrandMicrochip
HK$3.194
Each (In a Pack of 10)
units
1 - - - - - Surface Mount SOT-23 3 - - - 2.9 x 1.3 x 0.95mm 0.95mm
RS Stock No. 767-3419
Mfr. Part No.MCP102T-270E/TT
BrandMicrochip
HK$3.578
Each (In a Pack of 10)
units
1 Active Low - Yes - - Surface Mount SOT-23B 3 - - 130ms 3.04 x 1.4 x 1.02mm 1.02mm
RS Stock No. 806-2508
Mfr. Part No.MAX810RTRG
HK$3.121
Each (In a Pack of 20)
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. 732-6924
Mfr. Part No.MAX707CSA+
HK$52.17
Each
units
1 Active High, Active Low, Push-Pull - Yes - - Surface Mount SOIC 8 Yes - 280ms 5 x 4 x 1.5mm 1.5mm