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PDF NCS37000 Data sheet ( Hoja de datos )
| Número de pieza | NCS37000 | |
| Descripción | Ground Fault Circuit Interrupter | |
| Fabricantes | ON Semiconductor | |
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NCS37000
Ground Fault Circuit
Interrupter (GFCI)
Description
The NCS37000 is a fully UL943 compliant signal processor for
GFCI applications. The device integrates a flexible power supply
(including both shunt and LDO regulators), differential fault, and
grounded-neutral detection circuits. Proprietary impedance
measurement and signal processing techniques are used to minimize
the number of external components and improve performance. The
device also includes a specialized DSP controller that offers best in
class immunity to nuisance loads without the need for external analog
filters.
Features
• 6.0 – 12 Volt Operation (120 − 480 V AC mains with the appropriate
series impedance)
• −40 to 85°C
• Very Low Power Consumption: <5 mW @ 5 V
• 16 Pin QFN Package or 20 Pin TSSOP Package
• Single Current Transformer (CT) Detection of both Differential and
Grounded−Neutral Faults
• Self Syncing Internal Oscillator Adjusts to AC Mains Frequency to
Guarantee Full Resolution on 50 and 60 Hz Distribution Systems
• Optimized Solenoid Deployment (coil is not energized near the AC
mains zero crossings)
• Randomized Testing Sequence to Minimize Noise and Potential
Interactions on the AC Mains
• >5 mA SCR Driver for use with High Igt SCR’s for Improved Noise
Immunity
• Superior Immunity to Nuisance Loads/Noise (up to 10 A) without
Loss of Detection Capability or CT Saturation
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
Typical Applications
• Load Panel GFCI Breakers
• GFCI Receptacles
• In−line GFCI Circuits (power cords)
http://onsemi.com
1
QFN16
MN SUFFIX
CASE 485G
20
TSSOP−20
DA SUFFIX
CASE 948E
1
MARKING DIAGRAMS
37000
MNG
ALYW
G
3700
0DBG
ALYWG
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
G = Pb−Free Package
PIN CONNECTIONS
MLD
CTresGN
CTbias
CTstim
1
GND
(Top View)
ORDERING INFORMATION
Device
Package
Shipping†
NCS37000MNTWG QFN16 2500/Tape & Reel
NCS37000MNG
(Pb−Free) 120 Units / Tube
NCS37000DBRG
NCS37000DBG
TSSOP20 2500/Tape & Reel
(Pb−Free) 74 Units / Tube
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
© Semiconductor Components Industries, LLC, 2012
December, 2012 − Rev. 0
1
Publication Order Number:
NCS37000/D
1 page  
NCS37000
APPLICATIONS INFORMATION
LINE
solenoid
tvs
ResMain
ResMLD
CapSup
MLD
CapBIAS ResGN
CapGN
CapCT
ResCT
CTresGN
CTbias
CTstim
LOAD
ResD
CapIDF
Figure 2. Typical Application Schematic
NC
NC
TE
NC
http://onsemi.com
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet NCS37000.PDF ] | |
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