NCS37021 - Self-Test Ground Fault Circuit Interrupter

Product Overview

onsemi

Datasheet Details

Part number	NCS37021
Manufacturer	onsemi
File Size	169.45 KB
Description	Self-Test Ground Fault Circuit Interrupter
Datasheet	NCS37021 Datasheet
Additional preview pages of the NCS37021 datasheet.

Product details

Description

Pin # Name Pin Description 1 CTG Ground Neutral current transformer stimulus 2 SCM Test input for SCR functionality 3 CTB Differential current transformer bias voltage 4 CTS Differential current input 5 CTO Differential current to voltage output 6 IDF Differential low pass filter/ADC input 7 REF 3.3 V Internal reference voltage 8 GND Electronics ground 9 PTT Reference current bias input Push to Test 10 MLD Mains level/under voltage detector 11 AUX Auxiliary po

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.

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Published: Apr 14, 2025 |