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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Description Prix 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
N° de stock RS 662-3375
Référence fabricantTPS3808G30DBVT
1,38 €
Each (In a Pack of 5)
Unité
- 1 - Yes - - - Open Drain - Surface Mount SOT-23 6 2.9 x 1.6 x 1.15mm 2.83V
N° de stock RS 662-3359
Référence fabricantTPS3808G09DBVT
0,738 €
Each (In a Pack of 5)
Unité
- 1 - Yes - - - Open Drain - Surface Mount SOT-23 6 2.9 x 1.6 x 1.15mm 0.85V
N° de stock RS 190-4861
Référence fabricantMAX706TESA+T
1,556 €
Each (On a Reel of 2500)
Unité
- 1 Yes - - Yes - Active High, Active Low 200ms Surface Mount SOIC 8 5 x 4 x 1.5mm -
N° de stock RS 196-2092
Référence fabricantSTM6719TWWB6F
0,645 €
Each (In a Pack of 10)
Unité
- 1 - Yes 3.15V - 3V - - Surface Mount SOT-23 6 2.9 x 1.6 x 1.3mm 4.63V
N° de stock RS 786-9796
Référence fabricantLTC1326CMS8-2.5#PBF
4,70 €
Each (In a Pack of 2)
Unité
Micropower Triple Supply Monitor 3 - Yes 2.375 V, 3.135V - 2.344V - - Surface Mount MSOP 8 3 x 3 x 0.86mm 2.5 V, 3.3V
N° de stock RS 781-4418
Référence fabricantNCP803SN463D1T1G
0,374 €
Each (In a Pack of 20)
Unité
Microprocessor Reset Monitor - - - 4.88V - 4.4V - - Surface Mount SOT-23 3 2.2 x 1.35 x 0.9mm 4.9V
N° de stock RS 622-8478
Référence fabricantMAX695CWE+
9,25 €
Each
Unité
- 1 Yes - - Yes - Active High, Active Low, Push-Pull 280ms Surface Mount SOIC W 16 10.5 x 7.6 x 2.35mm 4.75V
N° de stock RS 686-1674
Référence fabricantSTM810TWX6F
0,322 €
Each (In a Pack of 25)
Unité
- 1 - - - - - Active High, Push-Pull 280ms Surface Mount SOT-23 3 3.04 x 1.4 x 1.02mm 3.15V
N° de stock RS 168-6342
Référence fabricantSTM6821LWY6F
0,454 €
Each (On a Reel of 3000)
Unité
- 1 Yes Yes - - - Active High, Push-Pull 280ms Surface Mount SOT-23 5 2.9 x 1.6 x 1.15mm 4.74V
N° de stock RS 823-0177
Référence fabricantLTC2950CTS8-1#TRMPBF
3,875 €
Each (In a Pack of 2)
Unité
Push Button Controller 1 - - 1V - 0.6V - - Surface Mount TSOT-23 8 2.9 x 1.75 x 0.9mm 33V
N° de stock RS 767-3478
Référence fabricantMCP120T-270I/TT
MarqueMicrochip
0,168 €
Each (In a Pack of 10)
Unité
- 1 - - - Yes - Open Drain 10µs Surface Mount SOT-23 3 3.04 x 1.4 x 1.02mm 2.7V
N° de stock RS 171-7448
Référence fabricantBD4830FVE-TR
MarqueROHM
0,339 €
Each (In a Pack of 20)
Unité
Open Drain Voltage Detector 1 - - - - - - - Surface Mount VSOF 5 1.6 x 1.2 x 0.6mm 3.11V
N° de stock RS 190-5866
Référence fabricantMAX6814XK+T
2,37 €
Each (In a Pack of 5)
Unité
- 1 Yes - - - - Active Low, Push-Pull - Surface Mount SC-70 5 2.2 x 1.35 x 1mm -
N° de stock RS 184-8220
Référence fabricantBD3775AF-E2
MarqueROHM
2,276 €
Each (In a Pack of 5)
Unité
Voltage Detector 1 - - - - - - - Surface Mount SOP 8 5 x 4.4 x 1.5mm 1.26V
N° de stock RS 768-1491
Référence fabricantTC54VC2702ECB713
MarqueMicrochip
0,164 €
Each (On a Tape of 15)
Unité
- 1 - - - - - Active Low, CMOS - Surface Mount SOT-23A 3 3.1 x 1.8 x 1.3mm 2.75V
N° de stock RS 162-7092
Référence fabricantTL7770-5CDW
2,253 €
Each (In a Tube of 40)
Unité
Microprocessor Voltage Monitor 2 - - - - - - - Surface Mount SOIC 16 10.28 x 7.52 x 2.35mm -
N° de stock RS 190-1816
Référence fabricantMAX8211EPA+
3,21 €
Each (In a Pack of 2)
Unité
Microprocessor Voltage Monitor 1 - - 2.5V - 1.8V - - Through Hole PDIP 8 9.91 x 7.87 x 4.45mm -
N° de stock RS 168-1293
Référence fabricantBU4231G-TR
MarqueROHM
0,328 €
Each (In a Pack of 25)
Unité
Open Drain Voltage Detector 1 - - - - - - - Surface Mount SSOP 5 2.9 x 1.6 x 1.1mm 3.1V
N° de stock RS 190-4838
Référence fabricantMAX16009TG+
5,211 €
Each (In a Tube of 75)
Unité
- 1 - - - - - Active High, Active Low 280ms Surface Mount TQFN 24 4.1 x 4.1 x 0.75mm -
N° de stock RS 648-1433
Référence fabricantLP3470IM5-4.38/NOPB
0,59 €
Each
Unité
Voltage Monitor & Reset 1 - - 4.424V - 4.336V - - Surface Mount SOT-23 5 2.92 x 1.6 x 1.02mm 5.5V