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. 686-1542
Mfr. Part No.STM6821LWY6F
R 3.99
Each (In a Pack of 5)
units
1 Active High, Push-Pull Yes - - - Surface Mount SOT-23 5 Yes - 280ms 2.9 x 1.6 x 1.15mm 1.15mm
RS stock no. 178-5293
Mfr. Part No.MCP100T-300I/TT
BrandMicrochip
R 4.797
Each (On a Reel of 3000)
units
1 Active Low, Push-Pull - - - - Surface Mount SOT-23 3 - - - 2.9 x 1.3 x 0.95mm 0.95mm
RS stock no. 168-6342
Mfr. Part No.STM6821LWY6F
R 3.735
Each (On a Reel of 3000)
units
1 Active High, Push-Pull Yes - - - Surface Mount SOT-23 5 Yes - 280ms 2.9 x 1.6 x 1.15mm 1.15mm
RS stock no. 738-6382
Mfr. Part No.MCP100T-300I/TT
BrandMicrochip
R 6.25
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. 111-1911
Mfr. Part No.ADM705ARZ
R 32.982
Each (In a Tube of 98)
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. 165-3586
Mfr. Part No.TC54VN2702ECB713
BrandMicrochip
R 3.541
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. 124-6491
Mfr. Part No.BD87A29FVM-TR
BrandROHM
R 45.156
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. 662-3359
Mfr. Part No.TPS3808G09DBVT
R 26.126
Each (In a Pack of 5)
units
1 Open Drain - - - - Surface Mount SOT-23 6 Yes - - 2.9 x 1.6 x 1.15mm 1.15mm
RS stock no. 162-7165
Mfr. Part No.TPS3808G09DBVT
R 17.211
Each (On a Reel of 250)
units
1 Open Drain - - - - Surface Mount SOT-23 6 Yes - - 2.9 x 1.6 x 1.15mm 1.15mm
RS stock no. 523-8014
Mfr. Part No.ADM705ARZ
R 36.615
Each (In a Tube of 98)
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. 768-1518
Mfr. Part No.TC54VN2702ECB713
BrandMicrochip
R 3.64
Each (In a Pack 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. 162-7177
Mfr. Part No.TPS3824-33DBVT
R 22.479
Each (On a Reel of 250)
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. 817-3660
Mfr. Part No.MCP809T-300I/TT
BrandMicrochip
R 5.97
Each (On a Reel of 3000)
units
1 Active Low - - - - Surface Mount SOT-23 3 - - 700ms 3.04 x 1.4 x 1.02mm 1.02mm
RS stock no. 178-5300
Mfr. Part No.MCP100T-485I/TT
BrandMicrochip
R 4.797
Each (On a Reel of 3000)
units
1 Push-Pull - Yes - - Surface Mount SOT-23 3 - - 10µs 3.04 x 1.4 x 1.02mm 1.02mm
RS stock no. 732-7270
Mfr. Part No.DS1232LPS-2+
R 62.72
Each
units
1 Active High, Active Low, Open Drain Yes Yes - - Surface Mount SOIC 8 Yes - 1000ms 5 x 4 x 1.5mm 1.5mm
RS stock no. 168-6344
Mfr. Part No.STM6822MWY6F
R 5.698
Each (On a Reel of 3000)
units
1 Active Low, Open Drain Yes - - - Surface Mount SOT-23 5 Yes - 280ms 2.9 x 1.6 x 1.15mm 1.15mm
RS stock no. 165-3308
Mfr. Part No.MCP130T-300I/TT
BrandMicrochip
R 5.897
Each (On a Reel of 3000)
units
1 Active Low, Open Drain - - - - Surface Mount SOT-23 3 - - 700ms 2.9 x 1.3 x 0.95mm 0.95mm
RS stock no. 877-9101
Mfr. Part No.ADM9690ARNZ
R 76.335
Each (In a Pack of 2)
units
1 Active Low Yes Yes - 4.31V Surface Mount SOIC 8 - - 75ms 5 x 4 x 1.5mm 1.5mm
RS stock no. 767-3399
Mfr. Part No.MCP100T-485I/TT
BrandMicrochip
R 6.18
Each (In a Pack of 15)
units
1 Push-Pull - Yes - - Surface Mount SOT-23 3 - - 10µs 3.04 x 1.4 x 1.02mm 1.02mm
RS stock no. 160-2887
Mfr. Part No.ADM9690ARNZ
R 58.444
Each (In a Tube of 98)
units
1 Active Low Yes Yes - 4.31V Surface Mount SOIC 8 - - 75ms 5 x 4 x 1.5mm 1.5mm