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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.

    856 產品顯示為 Voltage Supervisors

    Microchip
    -
    -
    1
    -
    -
    Active Low, Push-Pull
    -
    Surface Mount
    SOT-23
    3
    2.9 x 1.3 x 0.95mm
    4.75V
    5.5 V
    Texas Instruments
    Manual Reset
    Supply
    1
    0.8V
    -
    -
    -
    Surface Mount
    SOT-23
    6
    3.05 x 3.05 x 1mm
    1.7V
    36 V
    Microchip
    -
    -
    1
    -
    -
    Active Low, Push-Pull
    0.13ms
    Surface Mount
    SOT-23B
    3
    3.04 x 1.4 x 1.02mm
    3V
    5.5 V
    Microchip
    -
    Micropower
    1
    3.126V
    3.034V
    -
    -
    Surface Mount
    SOT-23B
    3
    2.92 x 1.3 x 0.95mm
    -
    5.5 V
    onsemi
    -
    Microprocessor Supervisory Circuit
    1
    2.96V
    2.89V
    -
    -
    Surface Mount
    SOT-23
    3
    3.04 x 1.4 x 1.01mm
    4.9V
    5.5 V
    STMicroelectronics
    -
    Electronic Fuse
    1
    16V
    13V
    -
    -
    Surface Mount
    HTSSOP
    14
    5.1 x 4.5 x 1.05mm
    -
    48 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
    HK$1.282
    个(每带 3000 )
    ROHM
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    onsemi
    -
    -
    1
    -
    -
    Active Low, Push-Pull
    460ms
    Surface Mount
    SOT-23
    3
    2.9 x 1.3 x 0.94mm
    2.7V
    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
    3V
    5.5 V
    STMicroelectronics
    Watchdog Timer,Manual Reset
    -
    1
    -
    -
    Active Low, Open Drain
    280ms
    Surface Mount
    SOT-23
    5
    2.9 x 1.6 x 1.15mm
    2.69V
    5.5 V
    Microchip
    -
    -
    1
    -
    -
    Active Low, Push-Pull
    -
    Surface Mount
    SOT-23
    3
    2.9 x 1.3 x 0.95mm
    2.7V
    5.5 V
    Microchip
    Watchdog Timer,Manual Reset
    Microprocessor Reset Monitor
    1
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    DiodesZetex
    -
    Micropower Voltage Detector
    -
    -
    -
    -
    -
    -
    SOT-23
    3
    -
    -
    -
    Microchip
    -
    -
    1
    -
    -
    Active Low, Open Drain
    700ms
    Through Hole
    TO-92
    3
    4.71 x 3.62 x 4.62mm
    4.5V
    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
    Microchip
    -
    -
    1
    -
    -
    Active Low, Open Drain
    700ms
    Surface Mount
    SOT-23
    3
    2.9 x 1.3 x 0.95mm
    3V
    5.5 V
    ROHM
    Manual Reset
    Open Drain Voltage Detector
    1
    -
    -
    -
    -
    Surface Mount
    SSOP
    5
    2.9 x 1.6 x 1.1mm
    3.11V
    10 V
    Texas Instruments
    -
    -
    1
    -
    -
    Active Low
    840ms
    Surface Mount
    SOT-23
    3
    2.92 x 1.3 x 0.93mm
    3.15V
    5.5 V
    STMicroelectronics
    -
    -
    1
    -
    -
    Active Low, Push-Pull
    280ms
    Surface Mount
    SOT-23
    3
    3.04 x 1.4 x 1.02mm
    3.15V
    5.5 V
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