NCS37021
Features
- Meets UL943 Self- test GFCI Requirements
- 4.0
- 12 V Operation
(120- 480 V AC Mains with the Appropriate Series Impedance)
- Wide Operating Temperature Range from 40°C to 95°C
- Low Quiescent Current
- Optimized Solenoid Deployment
(Coil is not Energized Near the AC Mains Zero Crossings)
- Power Supply Monitor that Verifies Full Diode Bridge Operation
- Tiered GF Trip Times that Increase Immunity to Noise
- Under- voltage Detection that Allows for Increased Operation at
Lower AC Input Voltages
- Intelligent Sensing Differentiating Ground Fault versus Ground
Neutral Fault (Prevent Nuisance Tripping)
- 16 Pin QFN Package
- This is a Pb- Free Device
Typical Applications
- GFCI Receptacles
- Load Panel GFCI Breakers
- In- line GFCI Circuits (Power Cords)
DATA SHEET .onsemi.
QFN16 CASE 485FQ
MARKING DIAGRAM
37021 ALYW
37021 A L Y W
= Specific Device Code = Assembly Location = Wafer Lot = Year = Work Week
PIN CONNECTIONS
SCR GFT LED DRF
CTG SCM CTB CTS
SUP AUX MLD PTT
CTO...
