Photocoupler
KPC714A • KPC724A • KPC744A
These Photocouplers consist of two Gallium Arsenide Infrared Emitting
Diodes connected in a reverse-paralled configuration for AC-input
and a Silicon NPN Phototransistor per a channel
The KPC714A has one channel in a 4-pin DIP package
The KPC724A has two channels in a 8-pin DIP package
The KPC744A has four channels in a 16-pin DIP package
FEATURES
• Small Package Size
• Collector-Emitter Voltage : Min.35V
• Current Transfer Ratio : 50% Min.(at IF=±1mA)
• Electrical Isolation Voltage : AC2500Vrms
• UL Recognized File No. E107486
APPLICATIONS
• AC Signal Input
• Interface between two circuits of difference
• Vending Machine
• Cordless Phone, Key Phone
• Programmable Logic Control
DIMENSION
KPC714A
4
0.25
3
(Unit : mm)
KPC724A
8
0.25
7
6
5
6.5
1
Orientation Mark
2
Orientation Mark
6.5
1
2
3
4
4.6
3.5 0.25
0.25
7.62 0.25
6.5
3.5 0.25
9.7
0.25
7.62 0.25
6.5
2.5Min.
0.51Min.
0.25
0 ~15
0.51Min.
2.5Min.
0.25
0
~15
0.5
1.2
2.54
0.25
0.5
1.2
2.54
0.25
KPC744A
0.25
16
15
14
13
12
11
10
9
6.5
1
Orientation Mark
2
3
4
5
6
7
8
19.8
3.5 0.25
0.25
7.62 0.25
6.5
0.51Min.
2.5Min.
0.25
0
~15
0.5
1.2
2.54
0.25
1/3
Photocoupler
KPC714A • KPC724A • KPC744A
MAXIMUM RATINGS
Parameter
Forward Current
Input
Peak Forward Current
*1
Power Dissipation
Collector-Emitter Breakdown Voltage
Output
Emitter-Collector Breakdown Voltage
Collector Current
Collector Power Dissipation
Input to Output Isolation Voltage
*2
Storage Temperature
Operating Temperature
Lead Soldering Temperature
*3
Total Power Dissipation
*1. Input current with 100㎲ pulse width, 1% duty cycle
*2. Measured at RH=40~60% for 1min
*3. 1/16 inch form case for 10sec
(Ta=25℃ )
Symbol
I
F
I
FP
P
D
BV
CEO
BV
ECO
I
C
P
C
V
iso
T
stg
T
opr
T
sol
P
tot
Rating
50
1
70
35
6
50
150
AC2500
-55~+125
-30~+100
260
200
Unit
mA
A
mW
V
V
mA
mW
V
rms
℃
℃
℃
mW
ELECTRO-OPTICAL CHARACTERISTICS
Parameter
Input
Forward Voltage
Capacitance
Collector-Emitter Breakdown Voltage
Output
Emitter-Collector Breakdown Voltage
Collector Dark Current
Capacitance
Current Transfer Ratio
*4
(Ta=25℃ , unless otherwise noted)
Symbol
V
F
C
T
BV
CEO
BV
ECO
I
CEO
C
CE
CTR
V
CE(SAT)
C
IO
R
IO
tr
tf
CTR1/CTR2
Condition
I
F
=
±10mA
V=0, f=1kHz
I
C
=0.5mA
I
E
=0.1mA
I
F
=0, V
CE
=24V
V
CE
=0, f=1kHz
I
F
=
±1mA,
V
CE
=5V
I
F
=
±5mA,
I
C
=1mA
V=0, f=1kHz
RH=40~60%, V=500V
V
CE
=5V, R
L
=100
I
C
=2mA
Min.
-
-
35
6
-
-
50
-
-
-
-
-
1
Typ.
1.15
30
-
-
-
10
-
0.2
1
10
11
4
4
-
Max.
1.30
-
-
-
100
-
600
0.4
-
-
-
-
3
Unit.
V
pF
V
V
nA
pF
%
V
pF
Ω
㎲
㎲
Collector-Emitter Saturation Voltage
Coupled
Input-Output Capacitance
Input-Output Isolation Resistance
Rise Time
Fall Time
Symmetry Ratio
*4. CTR=(I
C
/I
F
) X 100 (%)
2/3
Photocoupler
KPC714A • KPC724A • KPC744A
Forward Current vs.
Ambient Temperature
50
Collector Power Dissipation vs.
Ambient Temperature
Collector Power Dissipation P
C
(mW)
250
100
Forward Current vs.
Forward Voltage
Forward Current I
F
(mA)
Forward Current I
F
(mA)
40
200
80
30
150
60
T
a
=70℃
40
T
a
=25℃
20
T
a
=-55℃
20
100
10
50
0
-20
0
20
40
60
80
100
0
-20
0
0
20
40
60
80
100
0.4
0.8
1.2
1.6
Ambient Temperature T
a
(
℃
)
Ambient Temperature T
a
(
℃
)
Forward Voltage V
F
(V)
Collector Current vs.
Collector-Emitter Voltage
T
a
=25℃
I
F
=30mA
40
I
F
=25mA
I
F
=20mA
30
I
F
=15mA
20
P
C
(max.)
I
F
=10mA
I
F
=5mA
10
1
Dark Current vs.
Ambient Temperature
100
Collector Current vs.
Ambient Temperature
Collector Current I
C
(mA)
Collector Current I
C
(mA)
Dark Current I
CEO
(
㎂
)
I
F
=20mA
10
I
F
=10mA
I
F
=5mA
0.1
0.01
V
CE
=24V
1
I
F
=1mA
0.001
0
2
4
6
8
10
0
20
40
60
80
0
-20
0
20
40
60
80
Collector-Emitter Voltage V
CE
(V)
Ambient Temperature T
a
(
℃
)
Ambient Temperature T
a
(
℃
)
Response Time vs.
Load Resistance
500 V
CE
=5V
I
C
=2mA
T
a
=25℃
100
100
100
Collector Current vs.
Collector Current vs.
Forward Current
Forward Current
T
a
=25℃
T
a
=25℃
V
CE
=5V
V
CE
=5V
V
IN
Switching Time Test Circuit
V
CC
R
L
R
V
O
Response Time t
r
, t
f
(
μs)
Collector Current
I
C
(mA)
Collector Current
I
C
(mA)
10
10
1
1
10
Test Circuit
0.1
0.1
1
0.01
0.01
0.1
0.1
1.0
2.0
0.001
0.001
0.1
0.1
1
1
10
100
Load Resistance R
L
(㏀
)
Forward Current
I
F
(mA)
Forward Current
I
F
(mA)
Waveform
3/3
嵌入式系统
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