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. 806-2475
Mfr. Part No.MAX803SQ438T1G
HK$3.244
Each (In a Pack of 20)
units
1 Active Low, Open Drain - - - 4.38V Surface Mount SC-70 3 - Yes 460ms 2.2 x 1.35 x 0.9mm 0.9mm
RS Stock No. 122-0073
Mfr. Part No.MC33064P-5G
HK$2.136
Each (In a Bag of 2000)
units
1 - - - - - Through Hole TO-92 3 - - - 5.2 x 4.19 x 5.33mm 5.33mm
RS Stock No. 145-4243
Mfr. Part No.MAX803SQ438T1G
HK$1.606
Each (On a Reel of 3000)
units
1 Active Low, Open Drain - - - 4.38V Surface Mount SC-70 3 - Yes 460ms 2.2 x 1.35 x 0.9mm 0.9mm
RS Stock No. 163-2647
Mfr. Part No.NCP803SN160T1G
HK$1.492
Each (On a Reel of 3000)
units
1 Active Low, Open Drain - - - - Surface Mount SOT-23 3 - - 460ms 2.9 x 1.3 x 0.94mm 0.94mm
RS Stock No. 806-2491
Mfr. Part No.MAX809SQ293T1G
HK$2.906
Each (On a Tape of 20)
units
1 Active Low, Push-Pull - - - 2.93V Surface Mount SC-70 3 - Yes 460ms 2.2 x 1.35 x 0.9mm 0.9mm
RS Stock No. 186-9402
Mfr. Part No.MC33164P-5G
HK$5.156
Each (In a Pack of 25)
units
1 Open Collector - - - - Through Hole TO-92 3 - - - 5.2 x 4.19 x 5.33mm 5.33mm
RS Stock No. 145-3228
Mfr. Part No.MAX803SQ308D2T1G
HK$1.539
Each (On a Reel of 3000)
units
1 Active Low, Open Drain - - - 3.08V Surface Mount SC-70 3 - Yes 66ms 2.2 x 1.35 x 0.9mm 0.9mm
RS Stock No. 806-2501
Mfr. Part No.MAX809SQ308T1G
HK$3.147
Each (On a Tape of 20)
units
1 Active Low, Push-Pull - - - 3.08V Surface Mount SC-70 3 - Yes 460ms 2.2 x 1.35 x 0.9mm 0.9mm
RS Stock No. 162-9968
Mfr. Part No.MAX809MTRG
HK$1.20
Each (On a Reel of 3000)
units
1 Active Low - - - 5V Surface Mount SOT-23 3 - - 460ms 3.04 x 1.4 x 1.01mm 1.01mm
RS Stock No. 163-0452
Mfr. Part No.MAX809SQ293D1T1G
HK$1.57
Each (On a Reel of 3000)
units
1 Active Low, Push-Pull - - - 2.93V Surface Mount SC-70 3 - Yes 3.3ms 2.2 x 1.35 x 0.9mm 0.9mm
RS Stock No. 163-0446
Mfr. Part No.MAX803SQ293D3T1G
HK$1.37
Each (On a Reel of 3000)
units
1 Active Low, Open Drain - - - 2.93V Surface Mount SC-70 3 - Yes 300ms 2.2 x 1.35 x 0.9mm 0.9mm
RS Stock No. 806-2523
Mfr. Part No.MAX810SQ463T1G
HK$3.722
Each (In a Pack of 20)
units
1 Active High, Push-Pull - - - 4.63V Surface Mount SC-70 3 - Yes 460ms 2.2 x 1.35 x 0.9mm 0.9mm
RS Stock No. 163-2471
Mfr. Part No.MC34064P-5G
HK$2.33
Each (In a Bag of 2000)
units
1 - - - - - Through Hole TO-92 3 - - - 5.2 x 4.19 x 5.33mm 5.33mm
RS Stock No. 163-0454
Mfr. Part No.MAX809SQ463T1G
HK$1.558
Each (On a Reel of 3000)
units
1 Active Low, Push-Pull - - - 4.63V Surface Mount SC-70 3 - Yes 460ms 2.2 x 1.35 x 0.9mm 0.9mm
RS Stock No. 103-5058
Mfr. Part No.MAX809RTRG
HK$1.20
Each (On a Reel of 3000)
units
1 Active Low, Push-Pull N N N - Surface Mount SOT-23 3 - - 460ms 2.9 x 1.3 x 0.94mm 0.94mm
RS Stock No. 124-9990
Mfr. Part No.MAX810SQ438T1G
HK$1.577
Each (On a Reel of 3000)
units
1 Active High, Push-Pull - - - 4.38V Surface Mount SC-70 3 - Yes 460ms 2.2 x 1.35 x 0.9mm 0.9mm
RS Stock No. 806-2481
Mfr. Part No.MAX809SN160T1G
HK$2.699
Each (In a Pack of 25)
units
1 Active Low, Push-Pull - - - 1.6V Surface Mount SOT-23 3 - Yes 460ms 3.04 x 1.4 x 1.01mm 1.01mm
RS Stock No. 163-0444
Mfr. Part No.MAX708SESA-TG
HK$2.26
Each (On a Reel of 2500)
units
1 Active High, Active Low, Push-Pull - Yes - 2.93V Surface Mount SOIC 8 Yes Yes 200ms 5 x 4 x 1.5mm 1.5mm
RS Stock No. 463-224
Mfr. Part No.MC33064P-5G
HK$3.725
Each (In a Pack of 20)
units
1 - - - - - Through Hole TO-92 3 - - - 5.2 x 4.19 x 5.33mm 5.33mm
RS Stock No. 806-2463
Mfr. Part No.MAX803SQ293D3T1G
HK$2.801
Each (In a Pack of 25)
units
1 Active Low, Open Drain - - - 2.93V Surface Mount SC-70 3 - Yes 300ms 2.2 x 1.35 x 0.9mm 0.9mm