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KK4145AD Datasheet

  • KK4145AD

  • Low Power Ground Fault Interrupter

  • 7頁

  • KODENSHI

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TECHNICAL DATA
Low Power Ground Fault Interrupter
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
KK4145A
Direct interface to SCR
Supply voltage derived from AC line 鈥?26V shunt
Adjustable sensitivity
Grounded neutral fault detection
Meets U.L. 943 standards
450 碌A(chǔ) quiescent current
Ideal for 120 V or 220 V systems
ORDERING INFORMATION
KK4145AN
Plastic DIP
KK4145AD
SOIC
T
A
= -35擄 to 85擄 C for all packages.
BLOCK DIAGRAM
V
FB
PIN ASSIGNMENT
+
R1
10K
R2
10K
V
FB
Op Amp Output
1
2
3
4
8
7
6
5
NC
Op Amp Output
+V
S
SCR Trigger
+Input
+Input
V
REF
V
REF
(+13V)
6.5 V
6.5 V
6.5 V
6.5 V
+V
S
(+26V)
GND
+
Ground
R3
4.7K
+
SCR Trigger
ABSOLUTE MAXIMUM RATINGS
Symbol
I
CC
P
D
Tstg
Topr
T
J
T
L
P
D
Parameter
Supply Current
Internal Power Dissipation
Storage Temperature Range
Operating Temperature Range
Junction Temperature
Lead Temperature
T
A
< 50擄C
For T
A
> 50擄C Derate at
Value
18
500
-65 to +150
-35 to +85
125
125
450
6
Unit
mA
mW
擄C
擄C
擄C
擄C
mW
mW/擄C

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