FAN4146: Low Power Controller for AC outlet Appliance Leakage Circuit Interrupters (ALCI) and two-wire Residual Current Devices (RCD) FAN4147: Low Power Ground Fault Interrupter (GFI) and two-wire Residual Current Devices (RCD) Precision Sense Amplifier and Bandgap Reference Build-in AC Rectifier Direct DC Coupled to Sense Coil Build-in Noise Filter Low-Voltage SCR Disable SCR Gate Driver Adjustable Sensitivity Minimum External Components Meets UL 943B Requirements