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M541 の電気的特性と機能

M541のメーカーはMitsubishiです、この部品の機能は「EARTH LEAKAGE CURRENT DETECTOR」です。


製品の詳細 ( Datasheet PDF )

部品番号 M541
部品説明 EARTH LEAKAGE CURRENT DETECTOR
メーカ Mitsubishi
ロゴ Mitsubishi ロゴ 




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M541 Datasheet, M541 PDF,ピン配置, 機能
MITSUBISHI <CONTROL / DRIVER IC>
M54122L
EARTH LEAKAGE CURRENT DETECTOR
DESCRIPTION
The M54122L is a semiconductor integrated circuit with amplifier
for a high-speed earth leakage circuit breaker.
FEATURES
q Suitable for JIS C 8371
q Good temperature characteristics of input sensitivity current
q High input sensitivity (VT = 13.5mV Typ.)
q Low external component count
q High noise and surge-proof
q Low power dissipation (Pd = 5mW Typ.) and may be used both
as 100V and 200V.
q High mounting density by SIL package with 8 pins
q Wide temperature range (Ta = -20 – +80°C)
APPLICATION
High speed earth leakage circuit breaker
FUNCTION
The M54122L 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 transformer (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 CONFIGURATION (TOP VIEW)
Reference voltage VR 1
Input IN 2
GND
3 AMP
Differential amplifier output OD 4
Latch input SC 5
Terminal for noise absorption NR 6
LATCH
Output OS 7
VS 8
REG
Outline 8P5
BLOCK DIAGRAM
VS 8
AMP
7 OS output
GND 3
1
VR
Reference
voltage
2
IN
Input
4
OD
Differential
amplifier
output
5
SC
Latch
input
6
NR
Terminal for
noise absorption

1 Page





M541 pdf, ピン配列
TEST CIRCUIT
1
2
MITSUBISHI <CONTROL / DRIVER IC>
M54122L
EARTH LEAKAGE CURRENT DETECTOR
3
VR IN GND OD SC NR OS VS
IS
12345678
Open
VS
100
VI
0.047
0.047
µF µF
VR IN GND OD SC NR OS VS
123 4567
100
1k
Vrms
VI
Open
0.047 VOS 0.047
µF µF
8 VS
0.047
µF
VR IN GND OD SC NR OS VS
12
100
34
ITD1
567
Open
VI VOD 0.047
µF
8 VS
0.047
µF
456
VR IN GND OD SC NR OS VS
1234567
Open
100
VI VOD 0.047
ITD2 µF
8 VS
0.047
µF
VR IN GND OD SC NR OS VS
12
Open
3 4 5 6 7 8 IS
Open Open
3k
IO
VOS
VSC 0.047
0.047
µF µF
VR IN GND OD SC NR OS VS
12
100
VI
3 4567
Open Open
3k VOS
8 VS
0.047
µF
VSC
“ON”
0.047 0.047
µF µF
789
VR IN GND OD SC NR OS VS
12
100
VI
34567
Open Open
VOS
8 VS
ISC “ON”
0.047 0.047
µF µF
VR IN GND OD SC NR OS VS
12
100
VI
3 4567
Open Open
IOSL
VOSL
0.047
µF
8 VS
0.047
µF
VR IN GND OD SC NR OS VS
12
100
IIC
VIC
34567
Open Open
0.047
µF
8 VS
0.047
µF
10 11 12
VR IN GND OD SC NR OS VS
123 4567 8
IIDC
VIDC
Open
13
VR IN GND OD SC NR OS VS
12
100
3 4567
Open Open
VI 0.047
µF
8
ISM
VSM
0.047
µF
14
VR IN GND OD SC NR OS VS
12
100
3
VI
45678
Open VOS
IS2
0.047 0.047 IGT 0.047
µF µF
µF
VR IN GND OD SC NR OS VS
12
100
3
VI
4 5 6 7 8 VS
“OFF”
Open
0.047 0.047 VOS 0.047
µF µF
µF
VR IN GND OD SC NR OS VS
12
100
3
VI
4567
Open
0.047 0.047
µF µF
8 VS
0.047
µF
Note: The unit of resistance is ohm.
Please insurt 0.01µF between
pin 1 and pin 3 in test.


3Pages


M541 電子部品, 半導体
MITSUBISHI <CONTROL / DRIVER IC>
M54122L
EARTH LEAKAGE CURRENT DETECTOR
APPLICATION EXAMPLE
• HIGH-SPEED LEAKAGE CIRCUIT BREAKER WITH M54122L
Supply voltage circuit
Amplifier
Output circuit
Trip
coil
AC
line
R2 VS
8
C4
3
GND
Voltage
regulator
Reference
voltage
generator
M54122L
AMP
Latch
circuit
12
RP
RL 100
45
C1
AC Note 9
line ZCT
67
C3
C2
Note 8
SCR
CR2AM
CR03AM
CR02AM
R1
C5
Note 8 : Gate current must be selected.
Please select voltage resistance by AC supply voltage.
9 : MZ Core Series by Soryo Denshi Kagaku Co., Ltd (Mitsubishi Subsidiary)
Tel. +81-427-74-7813
Supply voltage circuit is connected as a previous diagram. Please
decide constants R1, R2, C4, and C5 of a filter in order to keep at
least 12V in VS, when normal supply current flows.
In this case, please connect C4 (more than 1µF) and C2 (less than
1µF). ZCT and load resistance RL of ZCT are connected between
input pin 1 and 2 . In this case protective resistance (RP = 100)
must be insurted. Sensitivity current is regulated by RL, and output
of amplifier shows in pin 4 . External capacitor C1 between pin 44
and GND is used for noise removal.
When large current is grounded in the primary side (AC line) of
ZCT, the wave form in the secondary side of ZCT is distorted and
some signals doesn’t appear in the output of amplifier. So please
connect a varistor or a diode (2 pcs.) to ZCT in parallel.
Latch circuit is used to inspect the output level of amplifier and to
supply gate current on the external SCR. When input pin becomes
more than 1.1V (Typ.), latch circuit operates and supply gate
current in the gate of SCR connected to the output pin 7 .
Pin 6 can be used in the open state, but please connect capacitor
(about 0.047µF) between pin 6 and pin 7 .
1000
700
500
300
Operating time vs. input voltage
C1 = 0.047µF
Ta = 25°C
60HZ
100
70
50
30
10
7
5
3
1
1 3 5 7 10 30 50 100 300 1000
70 500
Input voltage V1 (mVrms)

6 Page



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