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. 738-6382
Mfr. Part No.MCP100T-300I/TT
BrandMicrochip
HK$3.08
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. 667-4133
Mfr. Part No.MCP100T-315I/TT
BrandMicrochip
HK$3.08
Each (In a Pack of 20)
units
1 Active Low, Push-Pull - - - - Surface Mount SOT-23 3 - - - 2.9 x 1.3 x 0.95mm 0.95mm
RS Stock No. 662-3426
Mfr. Part No.TPS3824-33DBVT
HK$16.69
Each (In a Pack of 5)
units
1 Active High, Active Low Yes - - - Surface Mount SOT-23 5 - - - 2.9 x 1.6 x 1.15mm 1.15mm
RS Stock No. 806-2508
Mfr. Part No.MAX810RTRG
HK$4.08
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. 165-9070
Mfr. Part No.MAX708CPA+
HK$22.68
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. 124-6491
Mfr. Part No.BD87A29FVM-TR
BrandROHM
HK$22.68
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. 192-1252
Mfr. Part No.DS1813-10+
HK$13.153
Each (In a Bag of 2000)
units
1 Active Low, Open Drain - Yes - - Through Hole TO-92 3 Yes - 300ms 4.95 x 3.94 x 4.95mm 4.95mm
RS Stock No. 190-1513
Mfr. Part No.MAX690EPA+
HK$68.22
Each
units
1 Active Low, Push-Pull Yes Yes - - Through Hole PDIP 8 - Yes 70ms 9.91 x 7.87 x 4.45mm 4.45mm
RS Stock No. 628-3633
Mfr. Part No.TCM809LENB713
BrandMicrochip
HK$2.91
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. 165-3581
Mfr. Part No.TC54VC2702ECB713
BrandMicrochip
HK$3.08
Each (On a Reel of 3000)
units
1 Active Low, CMOS - - - - Surface Mount SOT-23A 3 - Yes - 3.1 x 1.8 x 1.3mm 1.3mm
RS Stock No. 165-3516
Mfr. Part No.MCP120T-485I/TT
BrandMicrochip
HK$2.91
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. 806-2488
Mfr. Part No.MAX809JTRG
HK$3.31
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. 761-6084
Mfr. Part No.LM809M3-2.93/NOPB
HK$6.70
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. 190-5583
Mfr. Part No.DS1233MS-5+
HK$24.412
Each (In a Pack of 5)
units
1 - - Yes - 3.3V Surface Mount SOIC 8 - - 450ms 5 x 4 x 1.5mm 1.5mm
RS Stock No. 165-9273
Mfr. Part No.MAX795TCSA+
HK$64.344
Each (In a Tube of 100)
units
1 Active Low, Open Drain - - Yes - Surface Mount SOIC 8 - Yes 280ms 5 x 4 x 1.5mm 1.5mm
RS Stock No. 190-4827
Mfr. Part No.DS1233DZ-15+
HK$13.335
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
New
RS Stock No. 196-8955
Mfr. Part No.MAX20333ENL+T
HK$10.789
Each (On a Reel of 2500)
units
3 - - - - - - - 15 - - - - -
RS Stock No. 165-9234
Mfr. Part No.DS1233Z-5+
HK$13.01
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. 190-5727
Mfr. Part No.MAX692AESA+
HK$94.21
Each
units
1 - Yes - - - Surface Mount SOIC 8 - - 200ms 5 x 4 x 1.5mm 1.5mm
RS Stock No. 190-5668
Mfr. Part No.DS1708ESA+
HK$32.61
Each (In a Pack of 2)
units
1 Active High, Active Low - Yes - - Surface Mount SOIC 8 - - 285ms 5 x 4 x 1.5mm 1.5mm
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