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Letex Technology Corp.
Photocoupler
Reference Data
10
0.2
0
0
0.4
0.6
0.8
Forward current (mA)
20
30
40
50
60
Collector-Emitter saturation voltage Vs.
Forward current
1.0
1.2
Test circuit for resopnse time
Forward voltage (V)
-25
0
Forward current Vs.
Forward voltage
Ambient temperature (℃)
75
50
-25
0
Ambient temperature (℃)
75
50
100
Forward current Vs.
Ambient temperature
10
20
30
40
50
60
Collector power dissipation Vs.
Ambient temperature
150
50
100
0
25
100
125
0
25
125
Peak forward current Vs.
Duty ratio
Duty ratio
10
20
50
100
200
500
1000
2000
5
10
2
5
5
2
5
2
-3
-2
10
-1
10
0
10
3.0
2.5
1.0
0.5
1.5
2.0
1
10
50
200
0
Pulse width 100us
Ta = 25℃
2
5
100
500
20
25℃
0℃
25℃
50℃
Ta = 75℃
Forward current (mA)
1
1
Current transfer ratio Vs.
Forward current
2
5
10
20
50
20
40
60
80
100
120
140
160
180
200
Vce = 5V
Ta = 25℃
0
0
Collector-Emitter voltage (V)
Collector current Vs.
Collector-Emitter voltage
Ta = 25℃
1
2
3
4
5
6
7
8
9
5
10
15
20
25
30
IF = 30mA
20mA
10mA
5mA
Pc(Max)
Ambient temperature (℃)
-25
0
0
25
100
50
75
Relative CTR Vs.
Ambient temperature
50
100
150
IF = 5mA
Vce = 5V
Ambient temperature (℃)
-25
0
0
25
100
50
75
Collector-Emitter saturation voltage Vs.
Ambient temperature
IF = 20mA
Ic = 1mA
0.02
0.04
0.06
0.08
0.10
0.12
0.14
0.16
Vce = 20V
Collector dark current Vs.
Ambient temperature
Ambient temperature (℃)
-11
10
-10
10
-9
10
-8
10
-7
10
-6
10
-5
10
0
25
50
75
100
-25
Ta = 25℃
Load resistance (k Ω )
0.1
Response time Vs.
Load resistance
Vce = 2V
Ic = 2mA
Ta = 25℃
0.1 0.2
0.5
1
2
5
10
0.2
0.5
1
2
5
10
20
50
100
200
500
Vcc
RL
Output
RD
Input
10%
Input
Output
90%
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