About Supervisory Circuits

On Semiconductor Supervisory Circuits

Supervisory circuits are electronic circuits used to monitor and control the operation of other circuits or systems. They are commonly found in appliances, industrial equipment and other electronic systems where reliable operation is required. Supervisory circuits monitor and control the behavior of other circuits and systems, providing feedback and making adjustments as necessary to keep them within acceptable parameters. They are generally composed of several parts, including sensors, comparators, alarms, timers, and relays. The sensors monitor the voltage, current, and temperature of the circuits and systems, while the comparators compare these values to normal operating parameters. Alarms are triggered when parameters are out of range, while the relays are used to activate corrective actions, such as turning off equipment or engaging a fail-safe mode. Timers are typically used to monitor the length of time a certain condition has been present, allowing the supervisor circuit to shut down the system before it is damaged by an enduring failure.

Supervisory Circuits

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(Ex. GST)(▲▼)		Enter Qty TypeMounting StyleOutput VoltagePackage / CaseThreshold VoltageNumber of Inputs MonitoredOutput TypeManual ResetWatchdogWatchdog TimersBattery Backup SwitchingReset Delay TimeSupply Voltage - MaxMinimum Operating TemperatureMaximum Operating TemperatureAccuracySeriesQualificationPackaging
  
                       
NCP305LSQ32T1G


Supervisory Circuits 3.2V Detector w/Reset Low
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

ON Semiconductor Availability : 2457
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USD 0.2017
Multiples of: 1

Voltage MonitorsSmd/Smt SC - 82AB - 43.2 V1 InputActive Low, Open DrainNo Manual ResetNo Watchdogno watchdogBackup 10 V- 40 C+ 85 C2 %Ncp305 Reel
MAX809SQ293D1T1G


Supervisor Push-Pull, Totem Pole 1 Channel SC-70-3 (SOT323)
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

ON Semiconductor Availability : 2444
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USD 0.2185
Multiples of: 1

Voltage SupervisorySmd/Smt SC - 70 - 31.2 v to 4.9 V1 InputPush - PullNo Manual ResetNo Watchdogno watchdogNo Backup3.3 ms5.5 V- 40 C+ 105 C Max809 Reel
MC33161DG


Supervisory Circuits Universal Voltage Monitor
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

ON Semiconductor Availability : 2434
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USD 0.5723
Multiples of: 1

Voltage SupervisorySmd/Smt SOIC - 81.27 V2 InputOpen Collector / DrainNo Manual Reset no watchdogNo Backupadjustable40 V- 40 C+ 105 C Mc33161 Tube
MC34164D-5R2G


Supervisory Circuits 4.27V UnderVoltage Sensing Circuit
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

ON Semiconductor Availability : 2428
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USD 0.4623
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Voltage SupervisorySmd/Smt SOIC - 85 V1 InputOpen Collector / DrainNo Manual ResetNo Watchdog No Backupadjustable10 V0 C+ 70 C Mc34164 Reel
NCV303LSN29T1G


ON Semiconductor Supervisory Circuits ANA UNDERVOLT DETECT
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

ON Semiconductor Availability : 2425
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USD 0.138
Multiples of: 1

Voltage MonitorsSmd/Smt SOT - 23 - 5 TH in (TSOP - 5)2.9 V1 Input No Manual Reset no watchdog  10 V- 40 C+ 125 C2 %Ncv303Aec - Q100Reel
MC34064D-5R2G


Supervisory Circuits 4.59V UnderVoltage Sensing Circuit
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

ON Semiconductor Availability : 2425
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USD 0.4419
Multiples of: 2500

Voltage SupervisorySmd/Smt SOIC - 84.6 V1 InputOpen Collector / DrainNo Manual ResetNo Watchdogno watchdogNo Backupadjustable6.5 V0 C+ 70 C Mc34064 Reel
CAT140169SWI-GT3


Supervisory Circuits SUP WITH 8K I2C EEPROM
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ON Semiconductor Availability : 2425
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USD 0.7625
Multiples of: 1

                   
NCV33161DR2G


Supervisory Circuits ANA UNIV VOLT MNTR
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

ON Semiconductor Availability : 2425
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USD 0.7852
Multiples of: 1

Voltage SupervisorySmd/Smt SOIC - 81.27 V2 InputOpen CollectorsNo Manual ResetNo Watchdogno watchdogNo Backup 40 V- 40 C+ 125 C Ncv33161Aec - Q100Reel
MAX809HTRG


Supervisory Circuits 4.55V uP Reset
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

ON Semiconductor Availability : 2409
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USD 0.2081
Multiples of: 1

Voltage SupervisorySmd/Smt SOT - 23 - 31.2 v to 4.9 V1 InputPush - PullNo Manual ResetNo Watchdogno watchdogNo Backup460 ms5.5 V- 40 C+ 105 C Max809 Reel
NCP304LSQ38T1G


ON Semiconductor Supervisory Circuits ANA UNDERVOLT DETECT 3.8V
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

ON Semiconductor Availability : 2337
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USD 0.1994
Multiples of: 1

Voltage MonitorsSmd/Smt SC - 82AB - 43.8 V1 Input No Manual Reset no watchdog  10 V- 40 C+ 85 C2 %Ncp304 Reel
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