■FEATURES

●Power Supply VDD 4.0V to 5.5V

●Operating Temperature -40℃ to 105℃

●Built-in High Precision ADC 14-Bit

●Sinc3 Digital Filter -3dB Frequency = 150Hz

●Internal Power Supply VREG=3.3V

VCOM=1.65V

●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)

●Package DMP8

■GENERAL 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.