Self Test Ground Fault Circuit Interrupter (GFCI)
NCS37015
The NCS37015 is a UL943 compliant signal processor for GFCI a...
Self Test Ground Fault Circuit Interrupter (GFCI)
NCS37015
The NCS37015 is a UL943 compliant signal processor for GFCI applications with self test. The device integrates a flexible power supply (including a 12 V shunt and two 3.3 V internal series
regulators), differential fault, and grounded−neutral detection circuits. Self test is monitored at start up and then every 17 minutes.
Features
Meets UL943 Self−test GFCI Requirements 4.0 – 12 Volt Operation (120−480 V AC mains with the appropriate
series impedance)
−40°C to 95°C Typical 575 mA Quiescent Current @ 11 V 16 Pin QFN Inverted and Latched SCR Output to Facilitate a Solenoid Operation Self Syncing Internal Oscillator adjusts to AC Mains Frequency to
Guarantee Full Resolution on 60 Hz Distribution Systems
Optimized Solenoid Deployment (coil is not energized near the AC
mains zero crossings)
Power Supply Monitor that Verifies Full Diode Bridge Operation Tiered Trip Times that Increase Immunity to Noise Under−voltage Detection that Allows for Increased Operation at
Lower AC Input Voltages
Typical Applications
Portable GFCI Plugs GFCI Receptacles
www.onsemi.com
QFN16 CASE 485FQ
PIN ASSIGNMENT
GNE TE SCR PTT
CTG GFT CTB CTS
LED MLD SUP RES
CTO IDF VDA GND
(Top View)
MARKING DIAGRAM
37015 ALYWG
G
37015 A L Y W G
= Specific Device Code = Assembly Location = Wafer Lot = Year = Work Week = Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering a...