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 926 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. 145-0783
Mfr. Part No.TLV803SDBZT
TWD12.00
Each (On a Reel of 250)
units
Circuit Initialization and Timing Supervisory 1 - - 2.99V 2.87V Surface Mount SOT-23 3 3.04 x 1.4 x 1.02mm 2.5 V, 3 V, 3.3 V, 5 V 6 V - +125 °C
RS Stock No. 812-4198
Mfr. Part No.TLV803SDBZT
TWD18.60
Each (On a Tape of 25)
units
Circuit Initialization and Timing Supervisory 1 - - 2.99V 2.87V Surface Mount SOT-23 3 3.04 x 1.4 x 1.02mm 2.5 V, 3 V, 3.3 V, 5 V 6 V - +125 °C
RS Stock No. 162-9516
Mfr. Part No.NCP303LSN45T1G
TWD4.50
Each (On a Reel of 3000)
units
Voltage Detector 1 - - 4.59V 4.41V Surface Mount TSOP 5 3 x 1.5 x 1mm - 10 V - +125 °C
RS Stock No. 791-6252
Mfr. Part No.NCP303LSN45T1G
TWD10.80
Each (On a Tape of 25)
units
Voltage Detector 1 - - 4.59V 4.41V Surface Mount TSOP 5 3 x 1.5 x 1mm - 10 V - +125 °C
RS Stock No. 789-3929
Mfr. Part No.CAT811TTBI-GT3
TWD11.20
Each (In a Pack of 20)
units
Microprocessor Power Supply Supervisor 1 - Yes 3.15V 3V Surface Mount SOT-143 4 3.04 x 1.4 x 1.07mm 5V 5.5 V - +85 °C
RS Stock No. 688-8819
Mfr. Part No.MC33161DG
TWD36.00
Each (In a Pack of 2)
units
Voltage Monitor 1 - - 1.295V 1.245V Surface Mount SOIC 8 5 x 4 x 1.5mm - 40 V - +105 °C
RS Stock No. 159-5032
Mfr. Part No.TL7705ACP
TWD26.00
Each
units
Supply 1 - - 4.6V 4.5V Through Hole PDIP 8 9.81 x 6.35 x 4.57mm 10V 18 V - +70 °C
RS Stock No. 103-5061
Mfr. Part No.MC33161DG
TWD29.70
Each (In a Tube of 98)
units
Voltage Monitor 1 - - 1.295V 1.245V Surface Mount SOIC 8 5 x 4 x 1.5mm - 40 V - +105 °C
RS Stock No. 124-9970
Mfr. Part No.CAT811TTBI-GT3
TWD4.50
Each (On a Reel of 3000)
units
Microprocessor Power Supply Supervisor 1 - Yes 3.15V 3V Surface Mount SOT-143 4 3.04 x 1.4 x 1.07mm 5V 5.5 V - +85 °C
RS Stock No. 121-8484
Mfr. Part No.TL7705ACP
TWD20.70
Each (In a Tube of 50)
units
Supply 1 - - 4.6V 4.5V Through Hole PDIP 8 9.81 x 6.35 x 4.57mm 10V 18 V - +70 °C
RS Stock No. 700-3132
Mfr. Part No.BD5230G-TR
BrandROHM
TWD11.50
Each (In a Pack of 20)
units
Voltage Detector 1 - - 3.03V 2.97V Surface Mount SSOP 5 2.9 x 1.6 x 1.1mm 6V 10 V - +105 °C
RS Stock No. 620-0694
Mfr. Part No.TPS3823-50DBVT
TWD37.60
Each (In a Pack of 10)
units
Processor 1 Yes Yes 4.64V 4.46V Surface Mount SOT-23 5 2.9 x 1.6 x 1.15mm 5.8V 5.5 V - +85 °C
RS Stock No. 620-0723
Mfr. Part No.TPS3823-33DBVT
TWD58.30
Each (In a Pack of 10)
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
RS Stock No. 168-6321
Mfr. Part No.STM6822SWY6F
TWD11.70
Each (On a Reel of 3000)
units
Microprocessor Voltage Monitor 1 Yes Yes 2.96V 2.89V Surface Mount SOT-23 5 2.9 x 1.6 x 1.15mm - 5.5 V - +85 °C
RS Stock No. 920-0170
Mfr. Part No.LTC2950CTS8-1#TRMPBF
TWD95.40
Each (On a Reel of 500)
units
Push Button Controller 1 - - 1V 0.6V Surface Mount TSOT-23 8 2.9 x 1.75 x 0.9mm 7 (KILL) V, 33 (PB) V 26.4 V - +70 °C
RS Stock No. 168-5838
Mfr. Part No.STM6719SFWB6F
TWD12.50
Each (On a Reel of 3000)
units
Dual/Triple Ultra Low 3 - Yes 3V 1.02V Surface Mount SOT-23 6 2.9 x 1.6 x 1.15mm 5.5V 5.5 V - +85 °C
RS Stock No. 526-779
Mfr. Part No.TPS3823-33DBVR
TWD41.20
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
RS Stock No. 920-0123
Mfr. Part No.LTC4365CTS8#TRMPBF
TWD80.30
Each (On a Reel of 500)
units
Overvoltage Protection 1 - - - - Surface Mount TSOT-23 8 2.9 x 1.75 x 0.9mm - 34 V - +70 °C
RS Stock No. 158-0330
Mfr. Part No.LTC2918IMS-B1#PBF
TWD83.20
Each (In a Tube of 50)
units
Voltage Single Supply Monitor 1 Yes Yes 1.71V 1.656V Surface Mount MSOP 10 3 x 3 x 0.86mm 1.8V 5.5 V - +85 °C
RS Stock No. 802-4013
Mfr. Part No.NCP303LSN27T1G
TWD15.00
Each (On a Tape of 25)
units
Undervoltage Detector 1 - - 2.754V 2.646V Surface Mount TSOP 5 3 x 1.5 x 1mm 4.9V 10 V - +125 °C