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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Beskrivning Pris 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-artikelnummer 121-8971
Tillv. art.nrTPS3808G01DBVT
VarumärkeTexas Instruments
19,461 kr
Each (On a Reel of 250)
Enheter
- 1 - Yes - - - Open Drain - Surface Mount SOT-23 6 2.9 x 1.6 x 1.15mm -
RS-artikelnummer 620-1142
Tillv. art.nrTPS3808G01DBVT
VarumärkeTexas Instruments
28,772 kr
Each (In a Pack of 5)
Enheter
- 1 - Yes - - - Open Drain - Surface Mount SOT-23 6 2.9 x 1.6 x 1.15mm -
RS-artikelnummer 163-0563
Tillv. art.nrMC34064SN-5T1G
Varumärkeonsemi
3,592 kr
Each (On a Reel of 3000)
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Undervoltage Detector 1 - - 4.7V - 4.5V - - Surface Mount TSOP 5 3 x 1.5 x 1mm 5V
RS-artikelnummer 806-2097
Tillv. art.nrMC34064SN-5T1G
Varumärkeonsemi
7,876 kr
Each (On a Tape of 20)
Enheter
Undervoltage Detector 1 - - 4.7V - 4.5V - - Surface Mount TSOP 5 3 x 1.5 x 1mm 5V
RS-artikelnummer 662-4227
Tillv. art.nrTPS3809K33DBVT
VarumärkeTexas Instruments
12,861 kr
Each (In a Pack of 10)
Enheter
Supply 1 - - 2.99V - 2.87V - - Surface Mount SOT-23 3 2.9 x 1.6 x 1.15mm -
RS-artikelnummer 121-9204
Tillv. art.nrTPS3809K33DBVT
VarumärkeTexas Instruments
9,434 kr
Each (On a Reel of 250)
Enheter
Supply 1 - - 2.99V - 2.87V - - Surface Mount SOT-23 3 2.9 x 1.6 x 1.15mm -
RS-artikelnummer 162-9039
Tillv. art.nrNCP303LSN29T1G
Varumärkeonsemi
1,997 kr
Each (On a Reel of 3000)
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Undervoltage Detector 1 - - 2.958V - 2.842V - - Surface Mount TSOP 5 3 x 1.5 x 1mm 4.9V
RS-artikelnummer 163-0701
Tillv. art.nrNCP305LSQ31T1G
Varumärkeonsemi
2,343 kr
Each (On a Reel of 3000)
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Voltage Detector 1 - - 3.162V - 3.038V - - Surface Mount SC-82AB 4 2.2 x 1.35 x 1mm 4.9V
RS-artikelnummer 802-4026
Tillv. art.nrNCP303LSN29T1G
Varumärkeonsemi
5,029 kr
Each (In a Pack of 25)
Enheter
Undervoltage Detector 1 - - 2.958V - 2.842V - - Surface Mount TSOP 5 3 x 1.5 x 1mm 4.9V
RS-artikelnummer 806-0722
Tillv. art.nrNCP305LSQ31T1G
Varumärkeonsemi
5,694 kr
Each (In a Pack of 25)
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Voltage Detector 1 - - 3.162V - 3.038V - - Surface Mount SC-82AB 4 2.2 x 1.35 x 1mm 4.9V
RS-artikelnummer 428-486
Tillv. art.nrTL7705AIP
VarumärkeTexas Instruments
10,88 kr
Each
Enheter
Supply 1 - - 4.6V - 4.5V - - Through Hole PDIP 8 9.81 x 6.35 x 4.57mm 10V
RS-artikelnummer 145-0823
Tillv. art.nrTL7705AIP
VarumärkeTexas Instruments
9,915 kr
Each (In a Tube of 50)
Enheter
Supply 1 - - 4.6V - 4.5V - - Through Hole PDIP 8 9.81 x 6.35 x 4.57mm 10V
RS-artikelnummer 145-7113
Tillv. art.nrTPS3824-50DBVT
VarumärkeTexas Instruments
9,045 kr
Each (On a Reel of 250)
Enheter
- 1 Yes - - - - - - Surface Mount SOT-23 5 2.9 x 1.6 x 1.15mm 5.8V
RS-artikelnummer 165-7704
Tillv. art.nrSTM1061N30WX6F
VarumärkeSTMicroelectronics
3,341 kr
Each (On a Reel of 3000)
Enheter
Low Power Voltage Detector 1 - - 3.06V - 2.94V - - Surface Mount SOT-23 3 3.04 x 1.4 x 1.02mm -
RS-artikelnummer 145-6389
Tillv. art.nrTPS3813K33DBVT
VarumärkeTexas Instruments
26,994 kr
Each (On a Reel of 250)
Enheter
- 1 Yes - - - - Open Drain - Surface Mount SOT-23 6 2.9 x 1.6 x 1.15mm 3V
RS-artikelnummer 806-2043
Tillv. art.nrMC33164P-3RAG
Varumärkeonsemi
7,892 kr
Each (In a Pack of 20)
Enheter
Undervoltage Detector 1 - - 2.8V - 2.55V - - Through Hole TO-92 3 5.2 x 4.19 x 5.33mm 3V
RS-artikelnummer 686-4790
Tillv. art.nrSTM1061N30WX6F
VarumärkeSTMicroelectronics
7,58 kr
Each (In a Pack of 25)
Enheter
Low Power Voltage Detector 1 - - 3.06V - 2.94V - - Surface Mount SOT-23 3 3.04 x 1.4 x 1.02mm -
RS-artikelnummer 662-3390
Tillv. art.nrTPS3813K33DBVT
VarumärkeTexas Instruments
31,886 kr
Each (In a Pack of 5)
Enheter
- 1 Yes - - - - Open Drain - Surface Mount SOT-23 6 2.9 x 1.6 x 1.15mm 3V
RS-artikelnummer 163-0558
Tillv. art.nrMC33164P-3RAG
Varumärkeonsemi
3,592 kr
Each (On a Reel of 2000)
Enheter
Undervoltage Detector 1 - - 2.8V - 2.55V - - Through Hole TO-92 3 5.2 x 4.19 x 5.33mm 3V
RS-artikelnummer 709-9048
Tillv. art.nrTPD12S520DBTR
VarumärkeTexas Instruments
6,142 kr
Each (In a Pack of 5)
Enheter
- - - - - - - - - Surface Mount TSSOP 38 9.7 x 4.4 x 1.15mm -