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  1. Semiconductors
  2. Power Supply IC
  3. Reset ICs

PST893R

Reset ICs are integrated circuits that monitor the power supply voltage in CPU and other logic systems, initiating a system reset during power-on or when a momentary power interruption (brownout) is detected.
We support the creation of robust circuits.
Our comprehensive range of Reset ICs includes various feature sets, such as built-in delay circuits, separated sense inputs, manual reset functions, and integrated timers. All products offer high accuracy, low current consumption, and a wide detection voltage range, ensuring a broad portfolio to support your diverse system requirements.

Overview

This IC is a System Reset IC that detect turn-off or the power flicker in power supply of CPU or logic systems.
The IC has the delay time pin by an external capacitor and manual reset sense pin. The manual reset function can reset for system at any time.
Therefore the IC is suitable for some applications of forced reset or test function.

  • ・Reset circuits for microcomputers, CPUs and MPUs
    ・Reset circuits for logic circuits
    ・Battery voltage check circuits
    ・Back-up power supply switching circuits
    ・Level detection circuits

  • Low current consumption

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    Absolute maximum
    rating
    [V]

    Recommended
    operating voltage
    Min.
    [V]

    Recommended
    operating voltage
    Max.
    [V]

    Detection voltage
    Min.
    [V]

    Detection voltage
    Max.
    [V]

    Detection
    voltage
    accuracy
    [%]

    Consumption
    current
    [μA]

    Release
    delay time

    Output type

    Output Logic

    Separated
    sense pin

    Manual reset

    Circuit structure

    Operating
    Ambient
    Temperature
    Min.
    [deg.C]

    Operating
    Ambient
    Temperature
    Max.
    [deg.C]

    Hysteresis
    voltage
    Typ.
    [V]

    Delay resistance
    Typ.
    [M OHM]

    Detection pin
    threshold voltage
    Typ.

    Additional function
    6.5 0.70 6.00 0.8 5.2 ±1 0.35 Adjustable CMOS Active L No Yes 1ch Reset -40 85 VTH(Typ.)×0.05 1 VDD×0.5 Manual reset

  • Associated Data

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