IL221A datasheet(2/3 Pages) SIEMENS

2 / 3 page

5–2

IL221A/222A/223A

Figure 1. Forward voltage versus forward current

Figure 2. Peak LED current versus duty factor, Tau

Figure 3. Normalized CTRCB versus IF

Figure 4. Normalized CTRCE versus LED current

100

0.7

0.8

0.9

1.0

1.1

1.2

1.3

1.4

If- Forward Current - mA

Ta = -55

°C

Ta = 25

°C

Ta = 100

°C

10-6

10-5

10-4

10-3

10-2

10-1

10 0

10 1

100

1000

10000

t - LED Pulse Duration - s

.005

.05

.02

.01

Duty Factor

DF = /t

100

Ta = -20°C

Ta = 25°C

Ta = 50°C

Ta =70°C

If - LED Current - mA

Normalized to:

If = 1mA, Ta = 25°C

Vcb = 10V

100

Ta = -20°C

Ta = 25°C

Ta = 50°C

Ta = 70°C

If -LED Current - mA

Normalized to:

If = 1mA, Vce = 5V

Ta = 25°C

Figure 5. CTRCB versus LED current

Figure 6. CTR versus LED current

Figure 7. Collector current versus LED current

Figure 8. Photocurrent versus LED current

100

0.00

0.05

0.10

Ta = -20°C

Ta = 25°C

Ta = 50°C

Ta = 70°C

If - LED Current - mA

100

500

1000

1500

2000

Ta = -20°C

Ta = 25°C

Ta = 50°C

Ta = 70°C

If -LED Current - mA

Vce = 10V

100

1000

Ta -20°C

Ta = 25°C

Ta = 50°C

Ta = 70°C

If -LED Current - mA

Vce = 10V

100

Icb-20°C

Icb 25°C

Icb 50°C

Icb 70°C

If - LED Current - mA

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