IL221A Datasheet, PDF (2/3 Pages) Siemens Semiconductor Group – PHOTODARLINGTON SMALL OUTLINE SURFACE MOUNT OPTOCOUPLER

Figure 1. Forward voltage versus forward current
1.4
1.3
Ta = -55°C
1.2
1.1
Ta = 25°C
1.0
0.9
Ta = 100°C
0.8
0.7
.1
1
10
100
If- Forward Current - mA
Figure 2. Peak LED current versus duty factor, Tau
10000
τ
Duty Factor
.005
1000
.01
.02
.05
.1
.2
100
.5
t
τ
DF = /t
1010-6 _{10-5 10-4 10-3 10-2 10-1 10 0 10 1}
t - LED Pulse Duration - s
Figure 3. Normalized CTR_CB versus I_F
3
Ta = -20°C
Normalized to:
Ta = 25°C
If = 1mA, Ta = 25°C
Vcb = 10V
Ta = 50°C
2
Ta =70°C
1
0
.1
1
10
100
If - LED Current - mA
Figure 4. Normalized CTR_CE versus LED current
100
Ta = -20°C
Ta = 25°C
Ta = 50°C
Ta = 70°C
10
Normalized to:
If = 1mA, Vce = 5V
Ta = 25°C
1
.1
.1
1
10
100
If -LED Current - mA
Figure 5. CTR_CB versus LED current
0.10
0.05
0.00
.1
Ta = -20°C
Ta = 25°C
Ta = 50°C
Ta = 70°C
1
10
100
If - LED Current - mA
Figure 6. CTR versus LED current
2000
1500
Ta = -20°C
Ta = 25°C
Ta = 50°C
Ta = 70°C
1000
Vce = 10V
500
0
.1
1
10
100
If -LED Current - mA
Figure 7. Collector current versus LED current
1000
100
Ta -20°C
Ta = 25°C
Ta = 50°C
Ta = 70°C
Vce = 10V
10
1
.1
1
10
100
If -LED Current - mA
Figure 8. Photocurrent versus LED current
100
Icb-20°C
Icb 25°C
10
Icb 50°C
Icb 70°C
1
.1
.1
1
10
100
If - LED Current - mA
IL221A/222A/223A
5–2