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NJU9102 Datasheet Preview

NJU9102 Datasheet

Earth Leakage Current Detector IC

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NJU9102
Earth Leakage Current Detector IC
FEATURES
Power Supply VDD
4.0V to 5.5V
Operating Temperature
-40 to 105
Built-in High Precision ADC 14-Bit
Sinc3 Digital Filter
-3dB Frequency = 150Hz
Internal Power Supply
VREG=3.3V
VCOM=1.65V
Earth Leakage Detector Condition (TMD)
Type A / Type AC switchable
Control Circuit
Earth Leakage Detector Condition (TMD)
Sampling Counter (SCRT)
Package
DMP8
GENERAL DESCRIPTION
NJU9102 is a digital detector IC for earth leakage
current breaker.
The built-in ADC converts from an analog signal from
ZCT (Zero-phase-sequence Current Transformer) to
digital data, and processes digital data based on an
earth leakage current detector condition. As a result of
data processing, NJU9102 outputs a one-shot pulse on
SCRT terminal when an analog signal is judged to a
leakage condition, and turns on an external thyristor.
APPLICATION
Earth Leakage Current Detector
EQUIVALENT CIRCUIT BLOCK DIAGRAM
8765
VREG= 3.3V
POR
VCOM
=1.65V
INTVREF
=2.048V
R=
100kΩ
R=
100kΩ
ΔΣ
MOD
OSC
SCR
Driver
Sinc3
Digital
Filter
Timing Control
&
Data Calculation
Digital block
1234
Rv
ZCT
Ver.1
http://www.njr.com/
-1-




JRC

NJU9102 Datasheet Preview

NJU9102 Datasheet

Earth Leakage Current Detector IC

No Preview Available !

PIN CONFIGURATION
NJU9102
PIN NO.
1
2
3
4
5
6
7
8
SYMBOL
VIN+
VIN-
GND
OSC
SCRT
TMD
VREG
VDD
DESCRIPTION
Voltage reference input
Input from ZCT
Ground
Oscillator
Output of Thyristor
Earth leakage detector condition
Output of internal regulator
Power Supply
MARK INFORMATION
NJU9102 M (TE1)
Part Number
Package
Taping Form
ORDERING INFORMATION
PART NUMBER
PACKAGE
OUTLINE
NJU9102M
DMP8
RoHS
yes
HALOGEN- TERMINAL
FREE
FINISH
yes Sn-2Bi
MARKING
9102
WEIGHT
(mg)
95
MOQ(pcs)
2,000
Ver.1 http://www.njr.com/ - 2 -


Part Number NJU9102
Description Earth Leakage Current Detector IC
Maker JRC
Total Page 22 Pages
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