HTCSEMI-HT4145ARZ
| Part # | HTCSEMI-HT4145ARZ |
Download  | HTCSEMI-HT4145ARZ |
HT4145A
LOW POWER GROUND FAULT
INTERRUPTER
DESCRIPTION
The HT4145A
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.
DIP-8
Contained internally are a 26V zener shunt regulator,
an opamp ,and an SCR driver. With the addition of two
sense transformers, a bridge rectifier, an SCR, a relay,
and a few additional components,the
HT4145A will
detect and protect against both hot wire to ground and
neutral wire to ground faults.Ease of application and
long-term reliability.
SOP-8
FEATURES
*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
*450μA
quiescent current
*Ideal for 120V or 220V systems
PIN CONFIGURATION
V
FB
1
8
7
NC
+INPUT
2
Op Amp Output
V
REF
+V
3
4
6
5
S
GND
SCR Trigger
Rev. 01
HT4145A
VFB
+ –
R1
10K
+Input
Op Amp Output
R2
10K
VREF
(+13V)
+Vs
6.5V
6.5V
6.5V
6.5V
(+26V)
+ –
+ –
GND
SCR Trigger
R3
4.7K
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Supply Current
SYMBOL
Icc
RATINGS
18
UNIT
mA
Power Dissipation
P
D
500
mW
Storage Temperature Range
Operating Temperature Range
Junction Temperature
Tstg
Topr
Tj
-65~+150
-35~+85
125
C
C
C
Lead Soldering Temperature
DIP-8 (60 Sec)
T
LED
300
260
C
C
SOP-8 (10 Sec)
PD TA
＜
50
℃
DIP-8
SOP-8
468
300
mW
mW
P
D
P
D
For TA
＞
50
℃
Derate at
DIP-8
SOP-8
6.25
4.1
mW/
mW/
C
C
Rev. 01
HT4145A
THERMAL DATE
PARAMETER
SYMBOL
VALUE
UNIT
Thermal resistance
DIP-8
SOP-8
θ
JA
160
240
C/W
C/W
ELECTRICAL CHARACTERISTICS
(T =25
C , Is=1.5mA )
a
PARAMETER
Detector Reference Voltage
Shunt Regulator
SYMBOL
V
REF(DET)
TEST CONDITIONS
Pin 7 to Pin 3
MIN
6.8
TYP
7.2
MAX
8.1
UNIT
±
V
Zener Voltage
Vz
Pin 6 to Pin 4
Pin 3 to Pin 4
+Vs=24V
25
26
13
29.2
14.6
750
V
Reference Voltage
Quiescent Current
Operational Amplifier
Offset Voltage
V
REF
12.5
V
I
Q
450
μA
V
OS
OH
OL
Pin 2 to Pin 3
-3.0
6.8
0.5
7.2
+3.0
8.1
mV
V
+Output Voltage Swing
– Output Voltage Swing
+Output Source Current
– Output Source Current
Gain Bandwidth Product
R1 Resistors
V
Pin 7 to Pin 3
V
Pin 7 to Pin 3
-9.5
-11.2
650
1.0
-13.5
V
I
O(SOURCE)
I
O(SINK)
GBW
R1
Pin 7 to Pin 3
μA
mA
MHz
KΩ
KΩ
KΩ
Pin 7 to Pin 3
F=50KHZ
1.0
1.8
Pin 1 to Pin 3 ,I
S
=0mA
Pin 2 to Pin 3 ,I
S
=0mA
Pin 5 to Pin 4 ,I
S
=0mA
Pin 5 to Pin 4
10
R2 Resistors
R2
10
R3 Resistors
R3
3.5
1.5
4.7
5.9
10
SCR Trigger Voltage
Detector On
V
ON(SCR)
2.8
1
V
SCR Trigger Voltage
Detector Off
Pin 5 to Pin 4
V
OFF(SCR)
0
mV
ELECTRICAL CHARACTERISTICS
(-35
C
≤
T
≤
+85
C , Is=1.5mA )
a
PARAMETER
Detector Reference Voltage
Shunt Regulator
SYMBOL
V
REF(DET)
TEST CONDITIONS
Pin 7 to Pin 3
MIN
6.5
TYP
7.2
MAX
8.3
UNIT
±
V
Zener Voltage
Vz
Pin 6 to Pin 4
Pin 3 to Pin 4
+Vs=23V
24
12
26
13
30
15
V
Reference Voltage
Quiescent Current(Is)
Operational Amplifier
Offset Voltage
V
REF
V
I
Q
500
μA
V
OS
OH
OL
Pin 2 to Pin 3
-5.0
6.5
-9.
0.5
7.2
+5.0
8.3
mV
V
+Output Voltage Swing
– Output Voltage Swing
Gain Bandwidth Product
Resistors
R1
Resistors
R2
Resistors
R3
V
Pin 7 to Pin 3
V
Pin 7 to Pin 3
-11.2
1.8
-14
V
GBW
R1
F=50KHZ
MHz
KΩ
KΩ
KΩ
Pin 1 to Pin 3 ,I
S
=0mA
Pin 2 to Pin 3 ,I
S
=0mA
Pin 5 to Pin 4 ,I
S
=0mA
Pin 5 to Pin 4
10
R2
10
R3
3.5
1.3
4.7
5.9
50
SCR Trigger Voltage
Detector On
V
ON(SCR)
2.8
3
V
SCR Trigger Voltage
Detector Off
Pin 5 to Pin 4
V
OFF(SCR)
0
mV
Rev. 01
HT4145A
Press
To Test
R
15K
TEST
Ground Neutral
Transformer
Mov
Sense Transformer
1000:1
Latching
Contacts
K1
Hot
200:1
Line
Neutral
Load
R
SENSE
1M *
C1
C3
10μF
0.01μF
HT4145A
V
FB
VFB
Op Amp Output
Solenoid
DB1
V
REF (+13V)
+Vs
C4
0.03μF
GND SCR
Trigger
R
LINE
24K
1N4004(4)
Q1
MCR100-6
C2
0.01μF
C
F
2.2μF
* Value depends on transformer characteristics
.
FIGURE 1. GFI Application Circuit (Three-Wire Outlet)
Rev. 01
HT4145A
Press
R
TEST
15K
To Test
Mov
Sense Transformer
1000:1
Latching
Contacts
K1
Hot
Line
Neutral
Load
R
SENSE
1M *
C1
10μF
HT4145A
VVFB Op Amp Output
Solenoid
V
REF
(+13V)
+Vs
GND
SCR Trigger
DB1
1N4004(4)
R
LINE
24K
Q1
X0130DA
C2
0.01μF
C
F
2.2μF
* Value depends on transformer characteristics.
FIGURE 2. GFI Application Circuit ( Two-Wire Outlet)
6
Rev. 01
HT4145A
Rev. 01
HT4145A
(DIP8)
A
Dimension, mm
8
5
4
B
Symbol
MIN
8.51
6.1
MAX
10.16
7.11
1
A
B
C
D
F
5.33
F
L
0.36
1.14
0.56
C
1.78
SEATING
PLANE
-T-
G
H
J
2.54
7.62
N
M
G
K
J
H
D
0°
10°
3.81
8.26
0.36
0.25 (0.010) M
T
K
L
2.92
7.62
0.2
NOTES:
M
N
1.
Dimensions “A”, “B” do not include mold fla
sh or protrusions.
0.38
Maximum mold flash or protrusions 0.25 mm (0.010) per side.
(SOP8)
Dimension, mm
A
Symbol
MIN
4.8
MAX
5
8
5
A
B
H
B P
3.8
4
C
1.35
1.75
1
G
4
D
F
0.33
0.51
C
R x 45
0.4
1.27
-T-
SEATING
PLANE
G
1.27
5.72
D
K
M
H
J
J
F
0.25 (0.010) M
T C
M
0°
0.1
0.19
5.8
8°
K
M
P
0.25
0.25
6.2
NOTES:
1. Dimensions
A and B do not include mold flash or protrusion.
2. Maximum
mold flash or protrusion 0.15 mm (0.006) per side
for A; for B
‑
0.25 mm (0.010) per side.
R
0.25
0.5
Rev. 01
