IL755B datasheet(2/2 Pages) SIEMENS

Part #	IL755B

Description	BIDIRECTIONAL INPUT DARLINGTON OPTOCOUPLER

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Manufacturer	SIEMENS [Siemens Semiconductor Group]

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IL755B

Figure 8. Switching waveform

Figure 9. Normalized non-satu-

rated and saturated CTRce ver-

sus LED current

IF

tR

VO

tD

tS

tF

tPHL

tPLH

VTH=1.5 V

IF=2 mA

VO

VCC=10 V

RL

F=10 KHz,

DF=50%

Figure 1. LED forward current versus forward voltage

Figure 2. Normalized non-saturated and saturated

CTRce versus LED current

Figure 3. Normalized non-saturated and saturated

CTRce versus LED current

Figure 4. Normalized non-saturated and saturated

Ice versus LED current

-1.5

-1.0

-0.5

0.0

0.5

1.0

1.5

-60

-40

-20

0

20

40

60

25

°C

85

°C

–55

°C

VF - LED Forward Voltage - V

100

10

1

.1

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

IF - LED Current - mA

Vce = 1 V

Vce = 5 V

Normalized to:

Ta = 25

°C

Vce = 5 V

IF = 1 mA

100

10

1

.1

0.0

0.5

1.0

1.5

2.0

2.5

3.0

Vce = 1 V

Vce = 5 V

IF - LED Current - mA

Normalized to:

Ta = 25

°C

Vce = 5 V

IF = 2 mA

100

10

1

.1

.01

.1

1

10

100

Vce = 5 V

Vce = 1 V

IF - LED Current - mA

Normalized to:

Ta = 25

°C

Vce = 5 V

IF = 2 mA

Figure 5. Normalized non-saturated and saturated

collector-emitter current versus LED current

Figure 6. Low to high propagation delay versus

collector load resistance and LED current

Figure 7. High to low propagation delay versus

collector load resistance and LED current

100

10

1

.1

.001

.01

.1

1

10

Vce = 1V

Vce = 5 V

IF - LED Current - mA

Ta = 25

°C

IF = 10 mA

Vce = 5 V

Normalized to:

0

5

10

15

20

0

20

40

60

80

Ta = 25

°C, Vcc = 5V

Vth = 1.5 V

220

Ω

470

Ω

1K

Ω

IF - LED Current - mA

100

Ω

0

5

10

15

20

0

5

10

15

20

100

Ω

1K

Ω

IF - LED Current - mA

Ta = 25

°C

Vcc = 5 V

Vth = 1.5 V

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