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PDF KK4145A Data sheet ( Hoja de datos )
| Número de pieza | KK4145A | |
| Descripción | Low Power Ground Fault Interrupter | |
| Fabricantes | KODENSHI KOREA | |
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TECHNICAL DATA
Low Power Ground Fault Interrupter
KK4145A
The KK4145AN is a low power controller for AC outlet ground fault
interrupters. These devices detect hazardous grounding conditions, such as
equipment (connected to opposite phases of the AC line) in contact with a
pool of water and open circuits the line before a harmful or lethal shock
occurs.
Contained internally are a 26V zener shunt regulator, an op amp, and an
SCR driver. With the addition of two sense transformers, a bridge rectifier,
an SCR, a relay, and a few additional components, the KK4145AN will
detect and protect against both hot wire to ground and neutral wire to
ground faults. The simple layout and conventional design ensure ease of
application and long-term reliability.
No potentiomenter required
Direct interface to SCR
Supply voltage derived from AC line – 26V shunt
Adjustable sensitivity
Grounded neutral fault detection
Meets U.L. 943 standards
450 µA quiescent current
Ideal for 120 V or 220 V systems
ORDERING INFORMATION
KK4145AN Plastic DIP
KK4145AD SOIC
TA = -35° to 85° C for all packages.
BLOCK DIAGRAM
VFB
+Input
VREF
(+13V)
R1
10K
R2
10K
+
6.5 V 6.5 V
+
6.5 V 6.5 V
+
PIN ASSIGNMENT
Op Amp Output
+VS
(+26V)
VFB
+Input
VREF
GND
1
2
3
4
8 NC
7 Op Amp Output
6 +VS
5 SCR Trigger
Ground
R3
4.7K
SCR Trigger
ABSOLUTE MAXIMUM RATINGS
Symbol
ICC
PD
Tstg
Topr
TJ
TL
PD
Parameter
Supply Current
Internal Power Dissipation
Storage Temperature Range
Operating Temperature Range
Junction Temperature
Lead Temperature
TA< 50°C
For TA> 50°C Derate at
Value
18
500
-65 to +150
-35 to +85
125
125
450
6
Unit
mA
mW
°C
°C
°C
°C
mW
mW/°C
1 page  
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KK4145A
MOV
Line
RTEST
15K
Sense Transformer
Press
To Test
1000:1
C1
10µF
Hot
Neutral
RSENSE
1M*
KK4145AN
VFB Op Amp Output
VREF(+13V)
+VS
GND
SCR Trigger
RLINE
24 K
Latching
Contacts
K1
Load
Solenoid
DB1
1N4004 (4)
CF
2.2µF
Q1 Tagi
X0103DA
C2
0.01µF
* Value depends on transformer characteristics.
Figure 2. GFI Application Circuit (Two-Wire Outlet)
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet KK4145A.PDF ] | |
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