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.


...
Read more Read less

Filters

Viewing 1 - 20 of 899 products
Results per page
Description Price Voltage Supervisor Type Number of Supervisors Watchdog Timer Manual Reset Maximum Reset Threshold Voltage Minimum Reset Threshold Voltage Mounting Type Package Type Pin Count Dimensions Maximum Monitored Voltage Maximum Operating Supply Voltage Automotive Standard Maximum Operating Temperature
RS Stock No. 159-5032
Mfr. Part No.TL7705ACP
£0.56
Each
Units
Supply 1 - - 4.6V 4.5V Through Hole PDIP 8 9.81 x 6.35 x 4.57mm 10V 18 V - +70 °C
RS Stock No. 121-8484
Mfr. Part No.TL7705ACP
£0.463
Each (In a Tube of 50)
Units
Supply 1 - - 4.6V 4.5V Through Hole PDIP 8 9.81 x 6.35 x 4.57mm 10V 18 V - +70 °C
RS Stock No. 165-7649
Mfr. Part No.STM1061N34WX6F
£0.124
Each (On a Reel of 3000)
Units
Low Power Voltage Detector 1 - - 3.468V 3.332V Surface Mount SOT-23 3 3.04 x 1.4 x 1.02mm - 6 V - +85 °C
RS Stock No. 686-4784
Mfr. Part No.STM1061N34WX6F
£0.321
Each (In a Pack of 25)
Units
Low Power Voltage Detector 1 - - 3.468V 3.332V Surface Mount SOT-23 3 3.04 x 1.4 x 1.02mm - 6 V - +85 °C
RS Stock No. 920-0123
Mfr. Part No.LTC4365CTS8#TRMPBF
£1.783
Each (On a Reel of 500)
Units
Overvoltage Protection 1 - - - - Surface Mount TSOT-23 8 2.9 x 1.75 x 0.9mm - 34 V - +70 °C
RS Stock No. 822-6815
Mfr. Part No.LTC4365CTS8#TRMPBF
£2.98
Each (In a Pack of 2)
Units
Overvoltage Protection 1 - - - - Surface Mount TSOT-23 8 2.9 x 1.75 x 0.9mm - 34 V - +70 °C
RS Stock No. 808-0158
Mfr. Part No.NCP303LSN30T1G
£0.217
Each (On a Tape of 100)
Units
Voltage Monitor 1 - - 4.4V 2.59V Surface Mount TSOP 5 3 x 1.5 x 1mm - 10 V - +125 °C
RS Stock No. 189-2136
Mfr. Part No.STM1061N31WX6F
£0.334
Each (In a Pack of 25)
Units
Voltage Detector 1 - - 3.162V 3.038V Surface Mount SOT-23 3 3.04 x 1.4 x 1.02mm 5.5V 6 V - +85 °C
RS Stock No. 163-0682
Mfr. Part No.NCP303LSN30T1G
£0.142
Each (On a Reel of 3000)
Units
Voltage Monitor 1 - - 4.4V 2.59V Surface Mount TSOP 5 3 x 1.5 x 1mm - 10 V - +125 °C
RS Stock No. 189-1870
Mfr. Part No.STM1061N31WX6F
£0.13
Each (On a Reel of 3000)
Units
Voltage Detector 1 - - 3.162V 3.038V Surface Mount SOT-23 3 3.04 x 1.4 x 1.02mm 5.5V 6 V - +85 °C
RS Stock No. 168-6391
Mfr. Part No.STM1061N28WX6F
£0.11
Each (On a Reel of 3000)
Units
Low Power Voltage Detector 1 - - 2.856V 2.744V Surface Mount SOT-23 3 3.04 x 1.4 x 1.02mm - 6 V - +85 °C
RS Stock No. 686-4796
Mfr. Part No.STM1061N28WX6F
£0.112
Each (In a Pack of 25)
Units
Low Power Voltage Detector 1 - - 2.856V 2.744V Surface Mount SOT-23 3 3.04 x 1.4 x 1.02mm - 6 V - +85 °C
RS Stock No. 162-4342
Mfr. Part No.TL7705BCP
£0.531
Each (In a Tube of 50)
Units
Supply 1 - - 4.6V 4.5V Through Hole PDIP 8 9.81 x 6.35 x 4.57mm 18V 18 V - +70 °C
RS Stock No. 168-7276
Mfr. Part No.TL7705BCP
£0.65
Each
Units
Supply 1 - - 4.6V 4.5V Through Hole PDIP 8 9.81 x 6.35 x 4.57mm 18V 18 V - +70 °C
RS Stock No. 165-2262
Mfr. Part No.TCM810TVNB713
BrandMicrochip
£0.198
Each (On a Reel of 3000)
Units
Microcontroller Reset Monitor 1 - - 3.15V 3V Surface Mount SOT-23B 3 3.04 x 2.64 x 1.12mm 5V 5.5 V - +125 °C
RS Stock No. 774-7387
Mfr. Part No.TCM810TVNB713
BrandMicrochip
£0.259
Each (In a Bag of 15)
Units
Microcontroller Reset Monitor 1 - - 3.15V 3V Surface Mount SOT-23B 3 3.04 x 2.64 x 1.12mm 5V 5.5 V - +125 °C
RS Stock No. 158-0330
Mfr. Part No.LTC2918IMS-B1#PBF
£1.87
Each (In a Tube of 50)
Units
Voltage Single Supply Monitor 1 Yes Yes 1.71V 1.656V Surface Mount MSOP 10 3 x 3 x 0.86mm 1.8V 5.5 V - +85 °C
RS Stock No. 825-0925
Mfr. Part No.MCP103T-315E/TT
BrandMicrochip
£0.08
Each (In a Pack of 20)
Units
Micropower 1 - - 0.185V 0.031V Surface Mount SOT-23 3 3.05 x 1.4 x 1.02mm 3.157V 5.5 V - +125 °C
RS Stock No. 884-2669
Mfr. Part No.LTC2918IMS-B1#PBF
£2.604
Each (In a Pack of 5)
Units
Voltage Single Supply Monitor 1 Yes Yes 1.71V 1.656V Surface Mount MSOP 10 3 x 3 x 0.86mm 1.8V 5.5 V - +85 °C
RS Stock No. 178-5333
Mfr. Part No.MCP103T-315E/TT
BrandMicrochip
£0.064
Each (On a Reel of 3000)
Units
Micropower 1 - - 0.185V 0.031V Surface Mount SOT-23 3 3.05 x 1.4 x 1.02mm 3.157V 5.5 V - +125 °C