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4

Document Number 83609

Rev. 1.5, 26-Oct-04

H11B1/ H11B2/ H11B3

Vishay Semiconductors

Current

Figure 4. Normalized Non-Saturated and Saturated Collector-

Emitter Current vs. LED Current

Figure 5. Non-Saturated and Saturated HFE vs. Base Current

ih11b1_03

100

1

.1

.01

.1

1

10

100

Vce=1V

Vce=5V

IF - LED Current - mA

IF =2mA

Vce=5V

Normalized to:

10

ih11b1_04

100

1

.1

.001

.01

.1

1

10

Vce=1V

Vce=5V

IF - LED Current - mA

IF =10mA

Vce=5V

Normalized to:

10

ih11b1_05

.01

.1

1

10

100

0

2000

4000

6000

8000

10000

Vce = 5 V

Vce = 1 V

Ib - Base Current -

µA

Figure 6. Low to High Propagation Delay vs. Collector Load

Resistance and LED Current

Figure 7. High to low Propagation Delay vs. Collector Load

Resistance and LED Current

Figure 8. Switching Waveform

ih11b1_06

0

5

10

15

20

0

20

40

60

80

Vcc=5V

Vth = 1.5 V

220

Ω

ıˇ

470

Ω

IF - LED Current - mA

100

Ω

1.0 k

Ω

ih11b1_07

0

5

10

15

20

0

5

10

15

20

100

Ω

1k

Ω

IF - LED Current - mA

Vcc = 5 V

Vth = 1.5 V

ih11b1_08

IF

tR

VO

tD

tS

tF

tPHL

tPLH

VTH = 1.5 V