CURRENT DETECTOR. VG54123P Datasheet

VG54123P DETECTOR. Datasheet pdf. Equivalent


Fudan VG54123P
VG54123L/P EARTH LEAKAGE
CURRENT DETECTOR
Specification
Mar. 2012
VG54123L/P Earth Leakage Current Detector
Ver2.2
Specification
1


VG54123P Datasheet
Recommendation VG54123P Datasheet
Part VG54123P
Description EARTH LEAKAGE CURRENT DETECTOR
Feature VG54123P; VG54123L/P EARTH LEAKAGE CURRENT DETECTOR Specification Mar. 2012 VG54123L/P Earth Leakage Current .
Manufacture Fudan
Datasheet
Download VG54123P Datasheet




Fudan VG54123P
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VG54123L/P Earth Leakage Current Detector
Ver2.2
Specification
2



Fudan VG54123P
Product Overview
Description
VG54123L/P is a semiconductor integrated circuit with amplifier for a high-speed earth leakage
circuit breaker. VG54123L/P is completely compatible with the M54123L.
Features
z Wide temperature range (-20~ +80℃)
z Good temperature characteristics of sensitivity current
z High input sensitivity (VT = 6.1mV Typ.)
z Low external component count
z High noise and surge-proof
z Low power demission (Pd = 5mW Typ.)
z May be used both as 110V and 220V
z SIP8 (VG54123L), DIP8 (VG54123D), SOP8 (VG54123P)
Function
The VG54123 circuit for the amplifying parts of earth leakage circuit breaker consists of
differential amplifier, latch circuit and voltage regulator. It is connected to the secondary side of
the zero current transformers (ZCT) which detects leakage current in the both input of the
differential amplifier. Signals amplified by differential amplifier are integrated by an external
capacitor, and connects to the input terminal of latch circuit with output suitable for the
characteristics of high-speed earth leakage circuit breaker. Latch circuit keeps low in the output
till the input voltage reaches the fixed level, and output becomes high when the leakage current
more than fixed flows. It drives a thyristor connected to the output terminal of latch circuit.
Pin Function
Pin Symbol
Pin Function
1 VR Reference voltage
2 IN Input
3
GND
Ground
4 OD Differential amplifier output
5 SC Latch input
6 NR Terminal and noise absorption
7 OS Output
8 VS Supply voltage
VG54123L/P Earth Leakage Current Detector
Ver2.2
Specification
3





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