NJU9102 Series
Digital Earth Leakage Current Detector IC

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  • Description

    NJU9102/A is a digital detector IC for earth leakage current breaker. The built-in ADC converts from an analog signal from ZCT (Zero-phase-sequence Current Transformer) to digital data, and processes digital data based on an earth leakage current detector condition. As a result of data processing, NJU9102/A outputs a one-shot pulse on SCRT terminal when an analog signal is judged to a leakage condition, and turns on an external thyristor.


    • Earth Leakage Current Breaker

  • Spec
    Supply Voltage 4V to 5.5V
    Operating Current Typ. 300uA
    Internal Power Supply VREG=3.3V/ VCOM=1.65V
    Resolution 14
    Number of Pin 8
    Structure CMOS Technology
    Wide Operating Temperature -40℃ to +105℃
    Junction Temp. +150℃
    Package DMP8
    Built-in High Precision ADC 14-Bit
    Sinc3 Digital Filter -3dB Frequency = 150Hz
    Earth Leakage Detector Condition (TMD) Type A / Type AC switchable
    Five times trip level detection NJU9102: Immediate response
    NJU9102A: No immediate response
    Control Circuit Earth Leakage Detector Condition (TMD)
    Sampling Counter (SCRT)
  • Technical
  • Quality &
    • Refer to the datasheets for the details on the product.
    • The package file or the datasheet includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.

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Functional Description

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