DESCRIPTION

· The NCS37010 is a UL943 compliant signal processor for GFCI applications, featuring self-test and lockout capabilities.

· It integrates a flexible power supply, differential fault, and grounded-neutral detection circuits.

· Utilizes proprietary impedance measurement and signal processing to minimize external components and enhance performance.

· Includes a DSP controller for superior immunity to nuisance loads without external analog filters.

FEATURES

· Operates at 6.0 - 12 V (120 - 480 V AC Mains with appropriate series impedance).

· Temperature range: -40 to 85 °C.

· Low power consumption: < 15 mW at 6 V.

· Available in 16 Pin QFN or 20 Pin TSSOP packages.

· Detects both differential and grounded-neutral faults using a single current transformer.

· Features full self-test and trip indicator monitoring.

· Self-syncing internal oscillator adjusts to AC mains frequency for full resolution on 50 and 60 Hz systems.

· Optimized solenoid deployment and randomized testing sequence to minimize noise.

· SCR driver >5 mA for high Igt SCRs, enhancing noise immunity.

· Superior immunity to nuisance loads/noise up to 10 A without detection loss or CT saturation.

· Pb-Free, Halogen Free/BFR Free, and RoHS compliant.

APPLICATIONS

· Load Panel GFCI Breakers.

· GFCI Receptacles.

· In-line GFCI Circuits (Power Cords).