Voltage Supervisors | Supply & Micropower | RS
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    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.

    1321 Producten voor Voltage Supervisors

    Texas Instruments
    -
    Supply
    1
    4.6V
    4.5V
    -
    -
    Surface Mount
    SOIC
    8
    4.9 x 3.91 x 1.58mm
    10V
    18 V
    Microchip
    -
    -
    1
    -
    -
    Active Low, Open Drain
    700ms
    Surface Mount
    SOT-23
    3
    2.9 x 1.3 x 0.95mm
    4.5V
    5.5 V
    STMicroelectronics
    Manual Reset
    -
    1
    -
    -
    Active Low, Push-Pull
    280ms
    Surface Mount
    SOT-143
    4
    3.04 x 1.4 x 1.02mm
    3.15V
    5.5 V
    Maxim Integrated
    Watchdog Timer
    Micro Monitor
    1
    -
    -
    -
    -
    Surface Mount
    SO
    8
    5 x 4 x 1.5mm
    5V
    5.5 V
    Texas Instruments
    -
    -
    -
    -
    -
    -
    -
    Surface Mount
    SOP
    3
    2.92 x 1.3 x 1mm
    -
    -
    Maxim Integrated
    Manual Reset,Power Fail Detection
    Microprocessor Power Supply Supervisor
    1
    -
    -
    Active Low, Open Drain
    450ms
    Through Hole
    TO-92
    3
    4.95 x 3.94 x 4.95mm
    2.97V
    5.5 V
    STMicroelectronics
    Watchdog Timer,Manual Reset,Power Fail Detection
    Voltage Supervisor
    1
    3V
    -
    -
    -
    -
    SO8
    8
    -
    -
    -
    Microchip
    -
    -
    1
    -
    -
    Open Drain
    -
    -
    SOT-23 & SC70
    3
    -
    -
    -
    Texas Instruments
    -
    Supply
    1
    4.6V
    4.5V
    -
    -
    Surface Mount
    SOIC
    8
    4.9 x 3.91 x 1.58mm
    10V
    18 V
    Texas Instruments
    -
    Supply
    1
    4.6V
    4.5V
    -
    -
    Through Hole
    PDIP
    8
    9.81 x 6.35 x 4.57mm
    10V
    18 V
    STMicroelectronics
    Manual Reset
    -
    1
    -
    -
    Active Low, Open Drain
    200ms
    Surface Mount
    SOT-23
    3
    3.04 x 1.4 x 1.02mm
    3 V, 3.3V
    5.5 V
    STMicroelectronics
    -
    -
    1
    -
    -
    Active Low, Push-Pull
    280ms
    Surface Mount
    SOT-23
    3
    3.04 x 1.4 x 1.02mm
    3V
    5.5 V
    onsemi
    -
    Undervoltage Detector
    1
    4.7V
    4.5V
    -
    -
    Through Hole
    TO-92
    3
    5.2 x 4.19 x 5.33mm
    -
    6.5 V
    onsemi
    -
    Undervoltage Detector
    1
    4.7V
    4.5V
    -
    -
    Surface Mount
    SOIC
    8
    5 x 4 x 1.5mm
    -
    6.5 V
    € 0,812
    Per stuk (in een verpakking 5)
    ROHM
    -
    Voltage Detector
    1
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    onsemi
    -
    Voltage Monitor
    1
    1.295V
    1.245V
    -
    -
    Surface Mount
    SOIC
    8
    5 x 4 x 1.5mm
    40V
    40 V
    onsemi
    -
    Microprocessor Voltage Monitor
    1
    3.11V
    3.04
    -
    -
    Surface Mount
    SOT-23
    3
    3.04 x 1.4 x 1.01mm
    4.9V
    5.5 V
    Analog Devices
    -
    -
    -
    1V
    0.6V
    -
    -
    Surface Mount
    TSOT-23
    8
    2.9 x 1.75 x 0.9mm
    -
    26.4 V
    Maxim Integrated
    Watchdog Timer
    Micro Monitor
    1
    -
    -
    -
    -
    Surface Mount
    SO
    8
    5 x 4 x 1.5mm
    5V
    5.5 V
    Microchip
    Watchdog Timer,Manual Reset
    -
    1
    -
    -
    Active Low, Push-Pull
    2240ms
    Surface Mount
    SOT-23
    5
    3.1 x 1.8 x 1.3mm
    2.97V
    5.5 V
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