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 927 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. 686-4784
Mfr. Part No.STM1061N34WX6F
R 6.956
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. 165-7649
Mfr. Part No.STM1061N34WX6F
R 2.68
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. 165-2159
Mfr. Part No.MCP1316MT-29ME/OT
BrandMicrochip
R 8.797
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 5.5 V - +125 °C
RS stock no. 823-3469
Mfr. Part No.MCP1316MT-29ME/OT
BrandMicrochip
R 10.593
Each (In a Pack of 20)
units
Micropower 1 Yes Yes 0.174V 0.029V Surface Mount SOT-23 5 3.1 x 1.8 x 1.3mm 2.9V 5.5 V - +125 °C
RS stock no. 189-2136
Mfr. Part No.STM1061N31WX6F
R 7.405
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. 189-1870
Mfr. Part No.STM1061N31WX6F
R 2.87
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. 178-5384
Mfr. Part No.LTC1153CS8#PBF
R 53.347
Each (In a Tube of 100)
units
- - - - 3.2V 2V Surface Mount SOIC 8 5 x 3.99 x 1.5mm - 18 V - +70 °C
RS stock no. 162-9020
Mfr. Part No.NCP301LSN30T1G
R 2.491
Each (On a Reel of 3000)
units
Ultra Low Supply Current 1 - - 2.94V 3.06V Surface Mount TSOP 5 3 x 1.5 x 1mm 4.9V 10 V - +125 °C
RS stock no. 700-3113
Mfr. Part No.BD4845G-TR
BrandROHM
R 6.317
Each (In a Pack of 20)
units
Voltage Detector 1 - - 4.568V 4.433V Surface Mount SSOP 5 2.9 x 1.6 x 1.1mm 6V 10 V - +105 °C
RS stock no. 823-0123
Mfr. Part No.LTC1153CS8#PBF
R 54.385
Each (In a Pack of 2)
units
- - - - 3.2V 2V Surface Mount SOIC 8 5 x 3.99 x 1.5mm - 18 V - +70 °C
RS stock no. 805-2034
Mfr. Part No.NCP301LSN30T1G
R 6.135
Each (In a Pack of 25)
units
Ultra Low Supply Current 1 - - 2.94V 3.06V Surface Mount TSOP 5 3 x 1.5 x 1mm 4.9V 10 V - +125 °C
RS stock no. 356-9861
Mfr. Part No.TLC7701ID
R 32.38
Each
units
Micropower Supply 1 - - 1.16V 1.04V Surface Mount SOIC 8 4.9 x 3.91 x 1.58mm - 6 V - +85 °C
RS stock no. 145-1023
Mfr. Part No.TLC7701ID
R 27.018
Each (In a Tube of 75)
units
Micropower Supply 1 - - 1.16V 1.04V Surface Mount SOIC 8 4.9 x 3.91 x 1.58mm - 6 V - +85 °C
RS stock no. 163-2065
Mfr. Part No.CAT1025WI-30-GT3
R 12.874
Each (On a Reel of 3000)
units
Voltage Monitor 1 - Yes 3.15V 3V Surface Mount SOIC 8 5 x 4 x 1.5mm 5V 5.5 V - +85 °C
RS stock no. 162-9884
Mfr. Part No.TPS3701DDCT
R 26.568
Each (On a Reel of 250)
units
- - - - - - Surface Mount SOT-23 6 3.05 x 1.75 x 1mm - - - +125 °C
RS stock no. 162-9013
Mfr. Part No.NCP301HSN30T1G
R 2.529
Each (On a Reel of 3000)
units
Ultra Low Supply Current 1 N N 3.06V 2.94V Surface Mount TSOP 5 3 x 1.5 x 1mm 4.9V 10 V - +125 °C
RS stock no. 162-9007
Mfr. Part No.NCP300LSN30T1G
R 2.491
Each (On a Reel of 3000)
units
Ultra Low Supply Current 1 - - 3.06V 2.94V Surface Mount TSOP 5 3 x 1.5 x 1mm 4.9V 10 V - +125 °C
RS stock no. 822-6821
Mfr. Part No.LTC2954CTS8-2#TRMPBF
R 65.095
Each (In a Pack of 2)
units
- - - - 1V 0.6V Surface Mount TSOT-23 8 2.9 x 1.75 x 0.9mm - 26.4 V - +70 °C
RS stock no. 800-9793
Mfr. Part No.CAT1025WI-30-GT3
R 28.342
Each (On a Tape of 5)
units
Voltage Monitor 1 - Yes 3.15V 3V Surface Mount SOIC 8 5 x 4 x 1.5mm 5V 5.5 V - +85 °C
RS stock no. 162-7171
Mfr. Part No.TPS3809L30DBVT
R 7.87
Each (On a Reel of 250)
units
Supply 1 - - 2.7V 2.58V Surface Mount SOT-23 3 2.9 x 1.6 x 1.15mm - 6 V - +85 °C