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4

Document Number 83650

Rev. 1.5, 26-Oct-04

ILD32/ ILQ32

Vishay Semiconductors

Figure 3. Normalized Non-Saturated and Saturated Collector-

Emitter Current vs. LED Current

Figure 4. Low to High Propagation Delay vs. Collector Load

Resistance and LED Current

Figure 5. High to low Propagation Delay vs. Collector Load

Resistance and LED Current

iild32_03

100

1

.1

.001

.01

.1

1

10

Vce=1V

Vce=10V

IF - LED Current - mA

Ta = 25°C

IF = 10 mA

Vce=10V

Normalized to:

10

iild32_04

0

5

10

15

20

0

20

40

60

80

TA = 25°C, VCC =10V

Vth = 1.5 V

220

Ω

ıˇ

470

Ω

IF - LED Current - mA

100

Ω

1k

Ω

iild32_05

0

5

10

15

20

0

5

10

15

20

100

Ω

1k

Ω

IF - LED Current - mA

TA =25°C

VCC =10V

Vth = 1.5 V

Figure 6. Switching Timing

Figure 7. Switching Schematic

iild32_06

IF

tR

VO

tD

tS

tF

tPHL

tPLH

VTH=1.5 V

iild32_07

VO

RL

VCC=10 V

IF =5 mA

F=10 KHz,

DF=50%