Digital Earth Leakage Current Detector IC
Data Sheet
Features
- Power Supply VDD (4.0V to 5.5V)
- Operating Temperature (-40°C to 105°C)
- 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.
Applications
- Earth Leakage Current Breaker
Package Information
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