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 61 - 80 of 1607 products
Results per page
Description Price 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 Stock No. 191-3572
Mfr. Part No.MAX6337US16D3+T
HK$24.35
Each (In a Pack of 5)
units
Microprocessor Voltage Monitor 1 - Yes 1.65V - 1.55V - - Surface Mount SOT-143 4 3.04 x 2.64 x 1.07mm -
RS Stock No. 768-1514
Mfr. Part No.TC54VN2102ECB713
BrandMicrochip
HK$4.494
Each (In a Pack of 15)
units
- 1 - - - - - Active Low, Open Drain - Surface Mount SOT-23A 3 3.1 x 1.8 x 1.3mm 2.14V
RS Stock No. 192-1652
Mfr. Part No.ICL7665CSA+
HK$47.165
Each (In a Pack of 2)
units
Voltage Monitor 2 - Yes 5.5V - 3.5V - - Surface Mount SOIC 8 5 x 4 x 1.5mm -
RS Stock No. 165-3508
Mfr. Part No.MCP112T-270E/LB
BrandMicrochip
HK$3.234
Each (On a Reel of 3000)
units
- 1 - - - Yes - Active Low 130ms Surface Mount SC-70 3 2.25 x 1.35 x 1mm 2.69V
RS Stock No. 662-4902
Mfr. Part No.TLC7705IPW
HK$18.512
Each (In a Pack of 5)
units
Micropower Supply 1 - - 4.63V - 4.47V - - Surface Mount TSSOP 8 3 x 4.4 x 1.15mm -
RS Stock No. 178-5308
Mfr. Part No.MCP101T-485I/TT
BrandMicrochip
HK$2.604
Each (On a Reel of 3000)
units
Power Supply Monitor, Power Supply Sequencer 1 - - 4.85V - 4.6V - - Surface Mount SOT-23 3 3.04 x 1.4 x 1.02mm 5V
RS Stock No. 173-492
Mfr. Part No.MAX812LEUS+T
HK$26.87
Each (In a Pack of 5)
units
- 1 - Yes - - - Active High, Push-Pull 560ms Surface Mount SOT-143 4 2.92 x 1.3 x 0.94mm 4.75V
RS Stock No. 686-1609
Mfr. Part No.STM812SW16F
HK$5.019
Each (In a Pack of 10)
units
- 1 - Yes - - - Active High, Push-Pull 280ms Surface Mount SOT-143 4 3.04 x 1.4 x 1.02mm 3V
RS Stock No. 190-1519
Mfr. Part No.MAX6355LSUT+T
HK$42.055
Each (In a Pack of 2)
units
- 3 - Yes - - - Active Low, Open Drain 280ms Surface Mount SOT-23 6 3 x 1.75 x 1.3mm 3 V, 4.75V
RS Stock No. 578-837
Mfr. Part No.STM1061N16WX6F
HK$5.634
Each (In a Pack of 5)
units
Low Power Voltage Detector 1 - - 1.632V - 1.568V - - Surface Mount SOT-23 3 3.04 x 1.4 x 1.02mm -
RS Stock No. 686-1555
Mfr. Part No.STM6822MWY6F
HK$8.358
Each (In a Pack of 5)
units
- 1 Yes Yes - - - Active Low, Open Drain 280ms Surface Mount SOT-23 5 2.9 x 1.6 x 1.15mm 4.49V
RS Stock No. 190-1775
Mfr. Part No.MAX8211CPA+
HK$39.355
Each (In a Pack of 2)
units
- 1 - - - Yes - Active Low, Open Drain - Through Hole PDIP 8 9.91 x 7.87 x 4.45mm -
RS Stock No. 167-7736
Mfr. Part No.BD5240G-TR
BrandROHM
HK$3.738
Each (In a Pack of 25)
units
Open Drain Voltage Detector 1 - - - - - - - Surface Mount SSOP 5 2.9 x 1.6 x 1.1mm 4V
RS Stock No. 179-1816
Mfr. Part No.TLC7725ID
HK$24.911
Each (In a Tube of 75)
units
Micropower Supply 1 - - 2.32V - 2.18V - - Surface Mount SOIC 8 4.9 x 3.91 x 1.58mm -
RS Stock No. 168-1083
Mfr. Part No.BD5327FVE-TR
BrandROHM
HK$4.242
Each (In a Pack of 25)
units
CMOS Voltage Detector 1 - - - - - - - Surface Mount VSOF 5 1.6 x 1.2 x 0.6mm 2.7V
RS Stock No. 191-3719
Mfr. Part No.MAX811SEUS+T
HK$28.57
Each (In a Pack of 5)
units
Voltage Monitor 1 - Yes 3V - 2.85V - - Surface Mount SOT-143 4 3.04 x 2.64 x 1.07mm -
RS Stock No. 209-7716
Mfr. Part No.MIC811MUY-TR
BrandMicrochip
HK$3.234
Each (On a Reel of 3000)
units
- 1 - - - - - Active Low - - SOT-143 4 - -
RS Stock No. 121-6318
Mfr. Part No.NCP803SN308T1G
HK$2.215
Each (On a Reel of 3000)
units
Microprocessor Reset Monitor - - - 3.23V - 2.92V - - Surface Mount SOT-23 3 2.2 x 1.35 x 0.9mm 4.9V
RS Stock No. 184-8327
Mfr. Part No.BD48E30G-TR
BrandROHM
HK$3.329
Each (In a Pack of 50)
units
Open Drain Voltage Detector 1 - - - - - - - Surface Mount SSOP 5 2.9 x 1.6 x 1.1mm 3V
RS Stock No. 168-6324
Mfr. Part No.STM811SW16F
HK$2.342
Each (On a Reel of 3000)
units
- 1 - Yes - - - Active Low, Push-Pull 280ms Surface Mount SOT-143 4 3.04 x 1.4 x 1.02mm 3V