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
  
                       
CAT1232LPV-G-T3


Processor Supervisor 4.62V/4.37V 3.3V/5V 8-Pin SOIC N T/R
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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 : 0
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USD 0.342
Multiples of: 3000

Voltage SupervisorySmd/Smt SOIC - 83.3 V , 5 V1 InputActive High, Active Low, Open Drain, Push - PullManual Reset watchdogNo Backup1000 ms5.5 V- 40 C+ 85 C   Reel
MAX708CUA-TG


Supervisory Circuits 4.38V uP Supervisory
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ON Semiconductor Availability : 0
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USD 0.3434
Multiples of: 1

Voltage SupervisorySmd/Smt MICRO - 81 v to 5.5 V1 InputPush - PullManual Reset no watchdogNo Backup200 ms5.5 V- 40 C+ 85 C Max708 Reel
NCV300LSN30T1G


Supervisory Circuits ANA UNDERVOLT DETECT 3.0V
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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 : 0
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USD 0.3454
Multiples of: 3000

Voltage MonitorsSmd/Smt  3 V1 Input No Manual ResetNo Watchdog    - 40 C+ 125 C2 %Ncv300 Reel
CAT823RTDI-GT3


Supervisory Circuits act low MR/WD
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ON Semiconductor Availability : 0
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USD 0.3493
Multiples of: 3000

Voltage SupervisorySmd/Smt TSOT - 23 - 53 v , 3.3 v , 5 V1 InputActive Low, Push - PullManual ResetWatchdogwatchdogNo Backup 5.5 V- 40 C+ 85 C Cat823 Reel
NCV303LSN47T1G


ON Semiconductor Supervisory Circuits 4.7V Detector wN-Channel Output
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ON Semiconductor Availability : 0
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USD 0.3521
Multiples of: 1

Voltage MonitorsSmd/Smt SOT - 23 - 5 TH in (TSOP - 5)4.7 V1 Input No Manual Reset no watchdog  10 V- 40 C+ 125 C2 %Ncv303Aec - Q100Reel
CAT825TTDI-GT3


Supervisory Circuits act low act hiMR
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ON Semiconductor Availability : 0
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USD 0.3568
Multiples of: 1

Voltage SupervisorySmd/Smt TSOT - 23 - 53 v , 3.3 v , 5 V1 Input Manual ResetNo Watchdog   5.5 V- 40 C+ 85 C Cat825 Reel
MC34164DM-5R2G


Supply Voltage Supervisory 5V 8-Pin Micro T/R
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ON Semiconductor Availability : 0
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USD 0.3585
Multiples of: 1174

Voltage SupervisorySmd/Smt MSOP - 85 V1 InputOpen Collector / DrainNo Manual Reset no watchdogNo Backupadjustable10 V0 C+ 70 C Mc34164 Reel
MC34164SN-5T1G


Supervisory Circuits 4.27V UnderVoltage Sensing Circuit
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ON Semiconductor Availability : 0
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USD 0.3611
Multiples of: 1

Voltage SupervisorySmd/Smt SOT - 23 - 5 TH in (TSOP - 5)5 V1 InputOpen Collector / DrainNo Manual ResetNo Watchdogno watchdogNo Backupadjustable10 V0 C+ 70 C Mc34164 Reel
CAT809STBI-T3


Supervisory Circuits 2.93V Push-Pull Low
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ON Semiconductor Availability : 0
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USD 0.3634
Multiples of: 1

                   
CAT824RSDI-GT3


Voltage Monitor 3V/3.3V/5V 5-Pin SC-70 T/R
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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 : 0
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USD 0.3674
Multiples of: 1145

Voltage SupervisorySmd/Smt SC - 70 - 52.63 V1 InputPush - PullNo Manual Reset watchdogNo Backup140 ms5.5 V- 40 C+ 85 C   Reel
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