NCS37014MNTWG

Overview

The NCS37014MNTWG is a signal processor for self-testing Ground Fault Circuit Interrupters (GFCIs) compliant with UL943 standards. It operates on supply voltages from 4.0V to 12V and supports AC power lines of 120V to 480V when paired with appropriate series impedance. The device features an internal oscillator that automatically synchronizes to the AC line frequency, ensuring full resolution in 60Hz systems. Typical static current is 575μA at 11V. It includes power monitoring, under-voltage detection, and optimized solenoid deployment to minimize energy loss near zero crossings.

Feature Summary

• Complies with UL943 self-testing GFCI requirements
• Internal oscillator auto-synchronizes to AC line frequency
• Integrated power monitoring verifies bridge rectifier operation
• Optimized solenoid deployment reduces unnecessary energy consumption

Applications

• Self-testing GFCI devices
• Ground fault protection circuits
• Residential and commercial electrical safety systems

Procurement Notes

Verify the complete part number against official datasheets to ensure correct suffix alignment. Confirm package type and temperature range specifications match design requirements. Cross-reference ordering information directly with manufacturer documentation to avoid discrepancies.

Selection Notes

Select this component for applications requiring UL943 compliance and low quiescent current. Ensure the external circuit provides necessary series impedance for voltage ranges above 12V. Verify thermal management capabilities given the QFN package and operating temperature limits.

Part Context

This device belongs to the NCS3701x family of specialized PMICs designed for ground fault protection. It integrates signal processing and control functions required for modern GFCI implementations, replacing discrete solutions with a single integrated chip.

Replacement Considerations

NCS37010MNG is a related variant within the same product family offering similar GFCI signal processing capabilities.