Document Number: 83654

For technical questions, contact: optocoupler.answers@vishay.com

www.vishay.com

Rev. 1.5, 20-Dec-07

5

ILD621/ILD621GB/ILQ621/ILQ621GB

Optocoupler, Phototransistor Output

(Dual, Quad Channel)

Vishay Semiconductors

Fig. 5 - Maximum LED Current vs. Ambient Temperature

Fig. 6 - Maximum LED Power Dissipation

Fig. 7 - Forward Voltage vs. Forward Current

Fig. 8 - Collector Emitter Current vs. Temperature and LED Current

Fig. 9 - Collector Emitter Leakage vs. Temperature

Fig. 10 - Propagation Delay vs. Collector Load Resistor

- 60 - 40

- 20

0

20

40

60

80

100

120

100

80

60

40

0

20

T

T

iild621_05

iild621_06

- 60 - 40 - 20

20

40

60

80

100

200

100

0

50

T

150

0

iild621_07

100

10

1

0.1

0.7

0.8

0.9

1.0

1.1

1.2

1. 3

1.4

iild621_08

60

50

30

20

10

0

0

5

10

15

20

25

30

35

50 °C

70 °C

85 °C

25 °C

40

iild621_09

100

80

60

40

20

0

- 20

10

10

10

10

10

10

10

10

- 2

- 1

0

1

2

3

4

5

T

Typical

iild621_10

100

10

1

0.1

1

10

100

1000

1.0

1.5

2.0

2.5