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
  
                       
NCV33064DM-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 : 3481
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USD 0.575
Multiples of: 1

                   
NCP304HSQ30T1G


Supervisory Circuits 3.0V Detector w/Reset High
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ON Semiconductor Availability : 3414
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USD 0.1862
Multiples of: 1

Voltage MonitorsSmd/Smt SC - 82AB - 43 V1 InputActive High, CmosNo Manual ResetNo Watchdogno watchdogBackup 10 V- 40 C+ 85 C2 %Ncp304 Reel
MC34064D-005G


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 : 3298
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USD 0.3301
Multiples of: 1

Voltage SupervisorySmd/Smt SOIC - 84.6 V1 InputOpen Collector / DrainNo Manual Reset no watchdogNo Backupadjustable6.5 V0 C+ 70 C Mc34064 Tube
CAT811LTBI-GT3


Supervisory Circuits Act. Lo w/PB 4-pin
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ON Semiconductor Availability : 3252
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USD 0.3381
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Voltage SupervisorySmd/Smt SOT - 143 - 42.5 v , 3 v , 3.3 v , 5 v1 InputActive Low, Push - PullManual ResetNo Watchdogno watchdogNo Backup240 ms5.5 V- 40 C+ 85 C Cat811 Reel
NCP308SN190T1G


Supervisory Circuits Voltage Supervisor Ultra Low Quiescent Current Programmable Delay Time Low Quiescent Current Delay time Pgmmable Supervisory Ckt
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ON Semiconductor Availability : 3053
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USD 0.4937
Multiples of: 1

Voltage Detectors               Ncp308 Cut Tape
NCP803SN120T1G


ON Semiconductor Supervisory Circuits ANA 1.20V MCROPROC RESET
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ON Semiconductor Availability : 3039
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USD 0.2588
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Voltage SupervisorySmd/Smt SOT - 23 - 31.2 v to 4.9 V1 InputOpen Collector / DrainNo Manual Reset no watchdogNo Backup460 ms5.5 V- 40 C+ 105 C Ncp803 Reel
MAX708RESA-TG


Supervisory Circuits 2.63V uP Supervisory
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ON Semiconductor Availability : 2979
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USD 0.475
Multiples of: 1

Voltage SupervisorySmd/Smt SOIC - 81 v to 5.5 V1 InputPush - PullManual ResetNo Watchdogno watchdogNo Backup200 ms5.5 V- 40 C+ 85 C Max708 Reel
NCV303LSN24T1G


Supervisory Circuits AUTO UNDERVOLT DETECT
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ON Semiconductor Availability : 2910
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USD 0.1368
Multiples of: 1

                  Cut Tape
NCV303LSN34T1G


Supervisory Circuits VDETECTOR W PROG DLY 3.4V
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ON Semiconductor Availability : 2910
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USD 0.1423
Multiples of: 1

Voltage Detectors               Ncp303Aec - Q100Cut Tape
NCV303LSN46T1G


Supervisory Circuits ANA UNDERVOLT DETECT 4.6V
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ON Semiconductor Availability : 2910
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USD 0.1518
Multiples of: 1

Voltage Monitors               Ncv303 Reel
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