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 1008 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. 170-8216
Mfr. Part No.ICL7665SACPAZ
$4.195
Each (In a Tube of 50)
units
Micropower Voltage Detector 2 - - 1.325V 1.275V Through Hole PDIP 8 10.16 x 7.11 x 4.95mm - 16 V - +70 °C
RS Stock No. 921-5765
Mfr. Part No.ICL7665SACPAZ
$5.855
Each (In a Pack of 2)
units
Micropower Voltage Detector 2 - - 1.325V 1.275V Through Hole PDIP 8 10.16 x 7.11 x 4.95mm - 16 V - +70 °C
RS Stock No. 165-7649
Mfr. Part No.STM1061N34WX6F
$0.232
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
$0.53
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. 901-3276
Mfr. Part No.LTC4151IMS#PBF
$10.32
Each (In a Pack of 2)
units
High Voltage I2C Current and Voltage 2 - - 2V 1.6V Surface Mount MSOP 10 3 x 3 x 0.86mm 80V 80 V - +85 °C
RS Stock No. 145-1337
Mfr. Part No.LTC4151IMS#PBF
$8.052
Each (In a Tube of 50)
units
High Voltage I2C Current and Voltage 2 - - 2V 1.6V Surface Mount MSOP 10 3 x 3 x 0.86mm 80V 80 V - +85 °C
RS Stock No. 906-3316
Mfr. Part No.LTC4365ITS8#TRMPBF
$6.77
Each (In a Pack of 4)
units
Overvoltage Protection, Reverse Supply Protection, Undervoltage Protection 3 - - - - Surface Mount TSOT-23 8 2.9 x 1.75 x 0.9mm - 34 V - +85 °C
RS Stock No. 169-0665
Mfr. Part No.APX823-29W5G-7
$0.179
Each (On a Reel of 3000)
units
Power On Reset Circuit 1 Yes Yes 3V 2.86V Surface Mount SOT-25 5 3.1 x 1.7 x 1.3mm 5V 5.5 V - +85 °C
RS Stock No. 751-3143
Mfr. Part No.APX823-29W5G-7
$0.544
Each (In a Pack of 25)
units
Power On Reset Circuit 1 Yes Yes 3V 2.86V Surface Mount SOT-25 5 3.1 x 1.7 x 1.3mm 5V 5.5 V - +85 °C
RS Stock No. 178-8940
Mfr. Part No.LTC4365ITS8#TRMPBF
$3.698
Each (On a Reel of 2500)
units
Overvoltage Protection, Reverse Supply Protection, Undervoltage Protection 3 - - - - Surface Mount TSOT-23 8 2.9 x 1.75 x 0.9mm - 34 V - +85 °C
RS Stock No. 822-5976
Mfr. Part No.LTC2950ITS8-2#TRMPBF
$7.095
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 - +85 °C
RS Stock No. 155-7520
Mfr. Part No.LTC2950ITS8-2#TRMPBF
$4.821
Each (On a Reel of 500)
units
- - - - 1V 0.6V Surface Mount TSOT-23 8 2.9 x 1.75 x 0.9mm - 26.4 V - +85 °C
RS Stock No. 921-5734
Mfr. Part No.ICL7665SAIPAZ
$6.25
Each (In a Pack of 2)
units
Micropower Voltage Detector 2 - - 1.325V 1.275V Through Hole PDIP 8 10.16 x 7.11 x 4.95mm - 16 V - +85 °C
RS Stock No. 163-0562
Mfr. Part No.MC34064P-5RAG
$0.344
Each (On a Reel of 2000)
units
Undervoltage Sensing Circuit 1 - - 4.7V 4.5V Through Hole TO-92 3 5.2 x 4.19 x 5.33mm 5V 6.5 V - +70 °C
RS Stock No. 806-2093
Mfr. Part No.MC34064P-5RAG
$0.858
Each (In a Pack of 20)
units
Undervoltage Sensing Circuit 1 - - 4.7V 4.5V Through Hole TO-92 3 5.2 x 4.19 x 5.33mm 5V 6.5 V - +70 °C
RS Stock No. 662-4227
Mfr. Part No.TPS3809K33DBVT
$0.975
Each (In a Pack of 10)
units
Supply 1 - - 2.99V 2.87V Surface Mount SOT-23 3 2.9 x 1.6 x 1.15mm - 6 V - +85 °C
RS Stock No. 923-1496
Mfr. Part No.ICL7665SAIPAZ
$6.313
Each (In a Tube of 50)
units
Micropower Voltage Detector 2 - - 1.325V 1.275V Through Hole PDIP 8 10.16 x 7.11 x 4.95mm - 16 V - +85 °C
RS Stock No. 121-9204
Mfr. Part No.TPS3809K33DBVT
$0.68
Each (On a Reel of 250)
units
Supply 1 - - 2.99V 2.87V Surface Mount SOT-23 3 2.9 x 1.6 x 1.15mm - 6 V - +85 °C
RS Stock No. 789-3925
Mfr. Part No.CAT811STBI-GT3
$0.55
Each (In a Pack of 20)
units
Microprocessor Power Supply Supervisor 1 - Yes 3V 2.85V Surface Mount SOT-143 4 3.04 x 1.4 x 1.07mm 5V 5.5 V - +85 °C
RS Stock No. 526-779
Mfr. Part No.TPS3823-33DBVR
$1.596
Each (In a Pack of 5)
units
Processor 1 Yes Yes 3V 2.86V Surface Mount SOT-23 5 2.9 x 1.6 x 1.15mm 5.8V 5.5 V - +85 °C
Related Products
Microprocessor Supervisory & Reset Circuits (463V to 4.67V), ...
Description:
Microprocessor Supervisory & Reset Circuits (463V to 4.67V), Maxim Integrated. Power supply voltage monitoring and supervisory circuits for use in desktop, laptop and notebook computers, test and measurement instruments, portable battery-powered equipment and multiple-output power supplies. Supply Voltage Detector ...
Microprocessor Supervisory & Reset Circuits (30V), Maxim Integrated. ...
Description:
Microprocessor Supervisory & Reset Circuits (30V), Maxim Integrated. Power supply voltage monitoring and supervisory circuits for use in desktop, laptop and notebook computers, test and measurement instruments, portable battery-powered equipment and multiple-output power supplies. Supply Voltage Detector Supply ...
High Performance Low On-Resistance 25Ω (typ)Accurate ±10% Current ...
Description:
High Performance Low On-Resistance 25Ω (typ)Accurate ±10% Current Limit+23V to +40V Wide Supply Voltage Range Low Operating Current Ultra-Low Temperature Coefficient Robust Protection for Sensors Avoids Power Dissipation Issues Compared to Discrete Solutions Thermal Shutdown Reverse Input Protection Saves Space ...
Electronic Fuses (E-fuses), STMicroelectronics E-fuses are electronic fuses ...
Description:
Electronic Fuses (E-fuses), STMicroelectronics E-fuses are electronic fuses that can replace larger conventional fuses or diode protection devices They offer complete and flexible management of the fault, without requiring replacement after actuation. Significantly it reduces maintenance costs to prove high ...