Voltage Supervisors

Voltage supervisors are integrated circuits (ICs) that monitor or supervise a voltage within an electronic circuit. They are sometimes referred to as voltage monitors or detectors. Voltage supervisors are found in most electronic applications and are used to prevent system failure and ensure correct system power up.


Voltage supervisors have an output signal which is given if the voltage falls outside of the chose parameters. This signal can be used to enable, disable or reset another device. Supervisors are commonly paired with a microprocessor (MPU) or microcontroller (MCU) device, as they often require a specific voltage range. Voltage supervisors can also be used as a fault detector for a sensor.


Types of Voltage Supervisors:


  • CMOS voltage detector

  • Open drain voltage detector

  • Watchdog timer

  • Window detector

  • Back-up battery supervisor

  • Battery monitoring

Things to consider when choosing a voltage supervisor?


  • Reset voltage

  • Supply voltage

  • Number of channels

  • Package type

What are processor supervisors?


Processor Supervisors monitor voltage for microprocessors and microcontrollers (MCUs). It is essential that processor parameters are monitored by 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.


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รายละเอียดสินค้า / Description ราคา / Price Voltage Supervisor Type Number of Supervisors Watchdog Timer Manual Reset Maximum Reset Threshold Voltage Power Fail Detection Minimum Reset Threshold Voltage Output Driver Maximum Reset Active Time Mounting Type Package Type Pin Count Dimensions Maximum Monitored Voltage
RS Stock No. 738-6297
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MCP1317T-29LE/OT
Brand :Microchip
THB20.396
Each: (In a Pack of 5)
Units
- 1 Yes Yes - - - Active High, Push-Pull 2240ms Surface Mount SOT-23 5 3.1 x 1.8 x 1.3mm 2.97V
RS Stock No. 165-3363
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MCP1317T-29LE/OT
Brand :Microchip
THB19.421
Each (On a Reel of 3000)
Units
- 1 Yes Yes - - - Active High, Push-Pull 2240ms Surface Mount SOT-23 5 3.1 x 1.8 x 1.3mm 2.97V
RS Stock No. 144-9251
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.TC1232CPA
Brand :Microchip
THB40.478
Each (In a Tube of 60)
Units
- 1 Yes Yes - Yes - Active High, Active Low, Open Drain, Push-Pull 1000ms Through Hole PDIP 8 10.16 x 6.6 x 4.06mm 4.49 V, 4.74V
RS Stock No. 667-4262
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.TC1232CPA
Brand :Microchip
THB37.888
Each: (In a Pack of 5)
Units
- 1 Yes Yes - Yes - Active High, Active Low, Open Drain, Push-Pull 1000ms Through Hole PDIP 8 10.16 x 6.6 x 4.06mm 4.49 V, 4.74V
RS Stock No. 768-1511
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.TC54VN1402ECB713
Brand :Microchip
THB16.96
Each: (In a Pack of 15)
Units
- 1 - - - - - Active Low, Open Drain - Surface Mount SOT-23A 3 3.1 x 1.8 x 1.3mm 1.43V
RS Stock No. 165-2232
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.TCM810SVNB713
Brand :Microchip
THB7.97
Each (On a Reel of 3000)
Units
Power Supply Monitor 1 - - 3V - 2.85V - - Surface Mount SOT-23B 3 3.04 x 1.4 x 1.02mm 5V
RS Stock No. 767-3438
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MCP111T-475E/LB
Brand :Microchip
THB12.087
Each: (In a Pack of 10)
Units
- 1 - - - Yes - Active Low 130ms Surface Mount SC-70 3 2.25 x 1.35 x 1mm 4.74V
RS Stock No. 165-3361
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MCP1316T-29LE/OT
Brand :Microchip
THB19.421
Each (On a Reel of 3000)
Units
- 1 Yes Yes - - - Active Low, Push-Pull 2240ms Surface Mount SOT-23 5 3.1 x 1.8 x 1.3mm 2.97V
RS Stock No. 165-3445
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MCP121-315E/TO
Brand :Microchip
THB12.903
Each (In a Bag of 1000)
Units
- 1 - - - Yes - Active Low 130ms Through Hole TO-92 3 4.95 x 3.94 x 4.95mm 3.15V
RS Stock No. 912-2988
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MCP809T-475I/TT
Brand :Microchip
THB8.384
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 4.75V
RS Stock No. 823-4529
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.TC32MCZB
Brand :Microchip
THB65.57
Each: (In a Pack of 10)
Units
- 1 Yes Yes - Yes - Active Low 900ms Through Hole TO-92 3 5.21 x 4.19 x 5.33mm 4.5V
RS Stock No. 738-6525
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MCP111T-450E/LB
Brand :Microchip
THB13.79
Each: (In a Pack of 10)
Units
- 1 - - - - - Active Low, Open Drain 0.13ms Surface Mount SC-70 3 2.25 x 1.35 x 1mm 4.49V
RS Stock No. 667-4219
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MCP130T-270I/TT
Brand :Microchip
THB13.896
Each: (In a Pack of 10)
Units
- 1 - - - - - Active Low, Open Drain 700ms Surface Mount SOT-23 3 2.9 x 1.3 x 0.95mm 2.7V
RS Stock No. 177-2888
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MIC2774N-29YM5-TR
Brand :Microchip
THB19.29
Each (On a Reel of 3000)
Units
- 1 - Yes 2.93V - 2.8V - - Surface Mount SOT-23 5 2.9 x 1.6 x 1.1mm -
RS Stock No. 165-3313
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MCP112T-290E/LB
Brand :Microchip
THB10.42
Each (On a Reel of 3000)
Units
- 1 - - - - - Active Low, Push-Pull 0.13ms Surface Mount SC-70 3 2.25 x 1.35 x 1mm 2.97V
RS Stock No. 667-4250
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MCP810T-450I/TT
Brand :Microchip
THB13.896
Each: (In a Pack of 10)
Units
- 1 - - - - - Active High, Push-Pull - Surface Mount SOT-23 3 2.9 x 1.3 x 0.95mm 4.5V
RS Stock No. 165-2233
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MCP1316MT-29KE/OT
Brand :Microchip
THB19.421
Each (On a Reel of 3000)
Units
Micropower 1 Yes Yes 0.174V - 0.029V - - Surface Mount SOT-23 5 3.1 x 1.8 x 1.3mm 2.9V
RS Stock No. 165-2209
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MCP1316MT-29LE/OT
Brand :Microchip
THB19.421
Each (On a Reel of 3000)
Units
- 1 Yes Yes - - - Active Low 2240ms Surface Mount SOT-23 5 3.1 x 1.8 x 1.3mm 2.97V
RS Stock No. 774-7630
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.TC1232EOA
Brand :Microchip
THB42.574
Each (In a Bag of 5)
Units
- 1 Yes Yes - Yes - Active High, Active Low 250ms Surface Mount SOIC 8 5 x 3.99 x 1.55mm 4.49 V, 4.74V
RS Stock No. 178-5300
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MCP100T-485I/TT
Brand :Microchip
THB9.027
Each (On a Reel of 3000)
Units
- 1 - - - Yes - Push-Pull 10µs Surface Mount SOT-23 3 3.04 x 1.4 x 1.02mm 4.85V