Datasheet

Document Number: 83640 For technical questions, contact: [e-mail]
www.vishay.com
Rev. 1.6, 09-Jan-08 5
IL74/ILD74/ILQ74
Optocoupler, Phototransistor Output
(Single, Dual, Quad Channel)
Vishay Semiconductors
Fig. 11 - Normalized Non-Saturated h
FE
vs. Base Current and
Temperature
Fig. 12 - Normalized Saturated h
FE
vs. Base Current and
Temperature
Fig. 13 - Propagation Delay vs. Collector Load Resistor
iil74_11
1 10 100 1000
0.4
0.6
0.8
1.0
1.2
I
b
- Base Current (µA)
NHFE - Normalized (HFE)
I
b
= 20 µA
V
CE
= 10 V
T
a
= 25 °C
- 20 °C
25 °C
50 °C
70 °C
Normalized to:
iil74_12
0.0
0.5
1.0
1.5
25 °C
- 20 °C
50 °C
70 °C
NHFE(sat) - Normalized Saturated HFE
1 10 100 1000
V
CE
= 0.4 V
I
b
- Base Current (µA)
Normalized to:
V
CE
= 10 V
I
B
= 20 µA
T
A
= 25 °C
iil74_13
R
L
- Collector Load Resistor (KΩ)
1001010.1
1
10
100
1000
1.0
1.5
2.0
2.5
tpLH
tpHL
tpLH - Propagation Delay (µs)
tpHL - Propagation Delay (µs)
T
a
= 25 °C, I
F
= 10 mA
V
CC
= 5 V, V
th
= 1.5 V