R3118 Series
Low Voltage Detector with Individual SENSE Pin and Delay Function

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  • Description

    The R3118 Series are CMOS-based voltage detector ICs with the built-in output delay circuit. Since R3118 has a SENSE pin for monitoring voltage separately from the power pin, its reset signal does not become unstable under the condition that the power supply is sufficient to operate the IC, and the "L" can be maintained. The detector threshold can be specified from 0.6V. The delay time can be set with an external capacitor connected to CD pin. The R3118 is offered in a 5-pin SOT-23-5 package. It is also offered in 5-pin SC-88A and 6-pin DFN(PLP)1212-6 packages, 1.2 mm x 1.2 mm, for consumer applications.

  • Spec
    Consumer Automotive
    Operating Voltage Range 1.0 V to 6.0 V (7.0 V)
    Operating Temperature Range -40°C to 85°C (125°C) -40°C to 85°C (125°C)
    -40°C to 125°C (125°C)
    Supply Current Typ. 0.4 µA (VSENSE ≥ +VDET, VDD = 6 V)
    Supply current of the SENSE resistor is not included.
    Detector Threshold Range 0.6 V to 5.0 V (0.1 V step)
    Detector Threshold Accuracy ±1.5% (Ta = 25°C, -VDET_S ≥ 1.6 V)
    ±22.5 mV (-VDET_S < 1.6 V)
    Detector Threshold Temperature Coefficient Typ. ±30 ppm/°C
    Release Delay Time Accuracy ±30%
    Output Type CMOS, Nch Open Drain
    Package DFN(PLP)1212-6, SC-88A, SOT-23-5 SOT-23-5
  • Technical
    • SPICE model download

      You can download the product's SPICE model. Select the SPICE model of the product you are considering.

    • Typical Application: R3118xxxxA CPU Reset Circuit (Nch Open Drain Output)

      Typical Application: R3118xxxxA CPU Reset Circuit (Nch Open Drain Output)

      VDD pin Voltage to R3118xxxxA is equal to VDD pin Voltage to CPU

    • R3118xxxxA Timing Chart

      R3118xxxxA Timing Chart

    • R3118xxxxC Timing Chart

      R3118xxxxC Timing Chart

  • Quality &
    • Refer to the datasheets for the details on the product.
    • The package file includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.
    • Please contact us or our distributors for unpublished reliability information.

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Functional Description

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