|
|
PDF M54124L Data sheet ( Hoja de datos )
| Número de pieza | M54124L | |
| Descripción | EARTH LEAKAGE CURRENT DETECTOR | |
| Fabricantes | Mitsubishi | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de M54124L (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
|
No Preview Available !
MITSUBISHI <CONTROL / DRIVER IC>
M54124L
EARTH LEAKAGE CURRENT DETECTOR
DESCRIPTION
The M54124L is a semiconductor integrated circuit consisting of an
amplifier for a high-speed earth-leakage circuit breaker.
FEATURES
q Satisfies JIS C 8371
q Temperature-stable input current threshold
q High-input sensitivity (VT = 6.5mV)
q Low external component count
q Highly resistant to noise and power surges
q Low power dissipation (Pd = 5mW typ)
q Can be used at 100V and 200V
q High-density mounting eight-pin SIL package
q Wide operating temperature range (Ta = -20 – +80°C)
APPLICATION
High-speed earth-leakage circuit breakers
FUNCTION
The M54124L is a semiconductor integrated circuit for use in the
amplifier section of earth-leakage circuit breakers. It consists of a
differential amplifier, one-shot circuit, output circuit and voltage
regulator. It is connected to the secondary side of the zero-current
transformer, ZCT, and detects leakage current in both inputs of the
differential amplifier. Signals amplified by the differential amplifier
are integrated by an external capacitor, and applied to the input pin
of a one-shot multivibrator circuit having time-delay characteristics
that are suitable for high-speed earth-leakage circuit breakers
(such as specified in JIS C 8371). The one-shot multivibrator circuit
normally maintains a low output. When the input current (earth-
leakage) exceeds a specified level, a one-shot high pulse is output
to turn on an externally connected thyristor.
PIN CONFIGURATION (TOP VIEW)
Reference voltage
Input
VR ← 1
IN → 2
GND 3
Differential amplifier output OD ← 4
One shot multivibrator A MA → 5
One shot multivibrator B MB →← 6
Output OS ← 7
VS 8
Outline 8P5
BLOCK DIAGRAM
VR
1
0
Comparator
1
One shot
multivibrator
A
0
Output
circuit
1
One shot
multivibrator
B
0
VCC
VR
1
VR
Reference
voltage
2
IN
Input
3
GND
45
OD MA
Differential One shot
amplifier multivibrator A
output
6
MB
One shot
multivibrator B
7
OS
Output
8
VS
1 page  
TYPICAL CHARACTERISTICS
Trip voltage vs. ambient temperature
16
14
12
10
8
6
4
2
0
-50 -25 0 25 50 75 100 125 150
Ambient temperature Ta (°C)
MA continuous detection time vs.
ambient temperature
160
140
120
100
80
60
40
20
0
-50 -25 0 25 50 75 100 125 150
Ambient temperature Ta (°C)
OS source current vs.
ambient temperature
-400
-350
-300
-250
-200
-150
-100
-50
0
-50 -25 0 25 50 75 100 125 150
Ambient temperature Ta (°C)
MITSUBISHI <CONTROL / DRIVER IC>
M54124L
EARTH LEAKAGE CURRENT DETECTOR
MA input detection time vs.
ambient temperature
8
7
6
5
4
3
2
1
0
-50 -25 0 25 50 75 100 125 150
Ambient temperature Ta (°C)
OS output pulse width vs.
ambient temperature
160
140
120
100
80
60
40
20
0
-50 -25 0 25 50 75 100 125 150
Ambient temperature Ta (°C)
1000
700
500
300
Operating time vs. input voltage
Ta = 25°C
60HZ
100
70
50
30
10
7
5
3
1
1 3 5 7 10 30 50 100
500 1000
70 300
Input voltage VI (mVrms)
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet M54124L.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| M54124L | EARTH LEAKAGE CURRENT DETECTOR | Mitsubishi |
| M54124L | EARTH LEAKAGE CURRENT DETECTOR | Mitsubishi |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |