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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Omschrijving Prijs 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-stocknr. 471-386
FabrikantnummerLTC2924CGN#PBF
FabrikantAnalog Devices
€ 5,24
Each
Aantal stuks
Quad Power Supply Sequencer 4 - - - - Surface Mount SSOP 16 4.98 x 3.99 x 1.5mm 6V 6 V - +70 °C
RS-stocknr. 812-4198
FabrikantnummerTLV803SDBZT
€ 0,482
Each (On a Tape of 25)
Aantal stuks
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-stocknr. 145-0783
FabrikantnummerTLV803SDBZT
€ 0,271
Each (On a Reel of 250)
Aantal stuks
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-stocknr. 145-4078
FabrikantnummerCAT823ZTDI-GT3
FabrikantON Semiconductor
€ 0,255
Each (On a Reel of 3000)
Aantal stuks
System Supervisory Voltage 1 Yes Yes 2.38V 2.25V Surface Mount TSOT-23 5 2.9 x 1.6 x 0.9mm 5V 5.5 V - +85 °C
RS-stocknr. 789-3935
FabrikantnummerCAT823ZTDI-GT3
FabrikantON Semiconductor
€ 0,564
Each (On a Tape of 10)
Aantal stuks
System Supervisory Voltage 1 Yes Yes 2.38V 2.25V Surface Mount TSOT-23 5 2.9 x 1.6 x 0.9mm 5V 5.5 V - +85 °C
RS-stocknr. 906-3316
FabrikantnummerLTC4365ITS8#TRMPBF
FabrikantAnalog Devices
€ 3,518
Each (In a Pack of 4)
Aantal stuks
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-stocknr. 178-8940
FabrikantnummerLTC4365ITS8#TRMPBF
FabrikantAnalog Devices
€ 2,171
Each (On a Reel of 2500)
Aantal stuks
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-stocknr. 162-9884
FabrikantnummerTPS3701DDCT
€ 1,332
Each (On a Reel of 250)
Aantal stuks
- - - - - - Surface Mount SOT-23 6 3.05 x 1.75 x 1mm - - - +125 °C
RS-stocknr. 526-779
FabrikantnummerTPS3823-33DBVR
€ 0,638
Each (In a Pack of 5)
Aantal stuks
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-stocknr. 900-9813
FabrikantnummerTPS3701DDCT
€ 2,206
Each (In a Pack of 5)
Aantal stuks
- - - - - - Surface Mount SOT-23 6 3.05 x 1.75 x 1mm - - - +125 °C
RS-stocknr. 620-0723
FabrikantnummerTPS3823-33DBVT
€ 0,975
Each (In a Pack of 10)
Aantal stuks
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-stocknr. 178-8971
FabrikantnummerTPS3823-33DBVT
€ 1,199
Each (On a Reel of 3000)
Aantal stuks
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-stocknr. 806-5244
FabrikantnummerNCP300LSN20T1G
FabrikantON Semiconductor
€ 0,386
Each (In a Pack of 25)
Aantal stuks
Voltage Detector 1 - - 2.06V 1.94V Surface Mount TSOP 5 3 x 1.5 x 1mm - 10 V - +125 °C
RS-stocknr. 145-6910
FabrikantnummerTPS3305-33D
€ 1,319
Each (In a Tube of 75)
Aantal stuks
Dual Processor 2 Yes Yes - - Surface Mount SOIC 8 4.9 x 3.91 x 1.58mm - 6 V - +85 °C
RS-stocknr. 162-9057
FabrikantnummerNCP360SNT1G
FabrikantON Semiconductor
€ 0,223
Each (On a Reel of 3000)
Aantal stuks
USB Positive Over Voltage Protection 1 - - 3.15 V, 5.9 V 2.85V Surface Mount TSOP 5 3 x 1.5 x 1mm - 20 V - +85 °C
RS-stocknr. 700-3040
FabrikantnummerBU4933G-TR
FabrikantROHM
€ 0,30
Each (In a Pack of 20)
Aantal stuks
Voltage Detector 1 - - 3.333V 3.267V Surface Mount SSOP 5 2.9 x 1.6 x 1.1mm 4.8V 7 V - +125 °C
RS-stocknr. 162-9514
FabrikantnummerNCP301LSN27T1G
FabrikantON Semiconductor
€ 0,127
Each (On a Reel of 3000)
Aantal stuks
Voltage Detector 1 N - 2.754V 2.646V Surface Mount TSOP 5 3 x 1.5 x 1mm - 10 V - +125 °C
RS-stocknr. 121-6506
FabrikantnummerNCP300LSN20T1G
FabrikantON Semiconductor
€ 0,154
Each (On a Reel of 3000)
Aantal stuks
Voltage Detector 1 - - 2.06V 1.94V Surface Mount TSOP 5 3 x 1.5 x 1mm - 10 V - +125 °C
RS-stocknr. 160-2621
FabrikantnummerADM6713RAKSZ-REEL7
FabrikantAnalog Devices
€ 0,353
Each (On a Reel of 3000)
Aantal stuks
Microprocessor Supervisory Circuit 1 - Yes 2.63V 2.55V Surface Mount SC-70 4 2.2 x 1.35 x 1mm 5.5V 5.5 V - +125 °C
RS-stocknr. 810-0016
FabrikantnummerADM6713RAKSZ-REEL7
FabrikantAnalog Devices
€ 0,618
Each (On a Tape of 10)
Aantal stuks
Microprocessor Supervisory Circuit 1 - Yes 2.63V 2.55V Surface Mount SC-70 4 2.2 x 1.35 x 1mm 5.5V 5.5 V - +125 °C
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