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 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庫存編號 517-1141
製造零件編號TPS3828-50DBVT
HK$12.708
/個 (每包:5個)
單位
- 1 Yes Yes - - - Open Drain - Surface Mount SOT-23 5 2.9 x 1.6 x 1.15mm 4.64V
RS庫存編號 162-4891
製造零件編號TPS3828-50DBVT
HK$8.253
個 (在毎卷:250)
單位
- 1 Yes Yes - - - Open Drain - Surface Mount SOT-23 5 2.9 x 1.6 x 1.15mm 4.64V
RS庫存編號 662-4227
製造零件編號TPS3809K33DBVT
HK$7.644
/個 (每包:10個)
單位
Supply 1 - - 2.99V - 2.87V - - Surface Mount SOT-23 3 2.9 x 1.6 x 1.15mm -
RS庫存編號 121-9204
製造零件編號TPS3809K33DBVT
HK$5.439
個 (在毎卷:250)
單位
Supply 1 - - 2.99V - 2.87V - - Surface Mount SOT-23 3 2.9 x 1.6 x 1.15mm -
RS庫存編號 662-3387
製造零件編號TPS3813I50DBVT
HK$17.788
/個 (每包:5個)
單位
- 1 Yes - - - - Open Drain - Surface Mount SOT-23 6 2.9 x 1.6 x 1.15mm 4.65V
RS庫存編號 162-9884
製造零件編號TPS3701DDCT
HK$16.986
個 (在毎卷:250)
單位
- - - - - - - - - Surface Mount SOT-23 6 3.05 x 1.75 x 1mm -
RS庫存編號 159-5032
製造零件編號TL7705ACP
HK$7.91
單位
Supply 1 - - 4.6V - 4.5V - - Through Hole PDIP 8 9.81 x 6.35 x 4.57mm 10V
RS庫存編號 121-8484
製造零件編號TL7705ACP
HK$6.92
毎管:50 個
單位
Supply 1 - - 4.6V - 4.5V - - Through Hole PDIP 8 9.81 x 6.35 x 4.57mm 10V
RS庫存編號 620-1142
製造零件編號TPS3808G01DBVT
HK$15.362
/個 (每包:5個)
單位
- 1 - Yes - - - Open Drain - Surface Mount SOT-23 6 2.9 x 1.6 x 1.15mm -
RS庫存編號 121-8971
製造零件編號TPS3808G01DBVT
HK$9.689
個 (在毎卷:250)
單位
- 1 - Yes - - - Open Drain - Surface Mount SOT-23 6 2.9 x 1.6 x 1.15mm -
RS庫存編號 900-9813
製造零件編號TPS3701DDCT
HK$25.336
/個 (每包:5個)
單位
- - - - - - - - - Surface Mount SOT-23 6 3.05 x 1.75 x 1mm -
RS庫存編號 179-1816
製造零件編號TLC7725ID
HK$24.911
毎管:75 個
單位
Micropower Supply 1 - - 2.32V - 2.18V - - Surface Mount SOIC 8 4.9 x 3.91 x 1.58mm -
RS庫存編號 662-4845
製造零件編號TL7709ACD
HK$15.12
/個 (每包:5個)
單位
Supply 1 - - 7.7V - 7.5V - - Surface Mount SOIC 8 4.9 x 3.91 x 1.58mm 15V
RS庫存編號 732-1216
製造零件編號TPS3809L30QDBVRQ1
HK$8.988
/個 (每包:5個)
單位
Supply 1 - - 2.7V - 2.58V - - Surface Mount SOT-23 3 3 x 1.7 x 1.3mm -
RS庫存編號 121-8854
製造零件編號LM809M3-3.08/NOPB
HK$5.922
個 (在毎卷:1000)
單位
- 1 - - - - - Active Low 840ms Surface Mount SOT-23 3 2.92 x 1.3 x 0.93mm 3.15V
RS庫存編號 145-0783
製造零件編號TLV803SDBZT
HK$3.987
個 (在毎卷:250)
單位
Open Drain Voltage Detector 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, 5V
RS庫存編號 620-0739
製造零件編號TPS3824-50DBVT
HK$11.414
/個 (每包:10個)
單位
Processor 1 Yes - 4.64V - 4.46V - - Surface Mount SOT-23 5 2.9 x 1.6 x 1.15mm 5.8V
RS庫存編號 662-4857
製造零件編號TL7712ACD
HK$10.605
/個 (每包:10個)
單位
Supply 1 - - 11V - 10.6V - - Surface Mount SOIC 8 4.9 x 3.91 x 1.58mm 20V
RS庫存編號 145-6083
製造零件編號TLV809K33DBZT
HK$3.564
個 (在毎卷:250)
單位
Supply 1 - - 2.99V - 2.87V - - Surface Mount SOT-23 3 3.04 x 1.4 x 1.02mm 5V
RS庫存編號 121-9203
製造零件編號TPS3809I50DBVR
HK$2.909
個 (在毎卷:3000)
單位
Supply 1 - - 4.65V - 4.45V - - Surface Mount SOT-23 3 2.9 x 1.6 x 1.15mm -