Figure 1. Forward voltage versus forward current
1.4
1.3
Ta = -55°C
1.2
1.1
Ta = 25°C
1.0
0.9
Ta = 85°C
0.8
0.7
.1
1
10
100
IF - Forward Current - mA
Figure 2. Normalized non-saturated and saturated
CTRce at TA=25°C versus LED current
1.2 Normalized to:
1.0 Vce = 10 V
IF = 10 mA
0.8 Ta = 25 °C
Vce = 10V
0.6
0.4
0.2
Vce =1V
0.0
.1
1
10
100
1000
IF - LED Current - mA
Figure 3. Normalized non-saturated and saturated
collector-emitter current versus LED current
10 Normalized to:
Ta = 25°C
1 IF = 10 mA
Vce = 10 V
.1
Vce = 10 V
Vce = 1V
.01
. 00 1
.1
1
10
100
IF - LED Current - mA
Figure 4. Low to high propagation delay versus
collector load resistance and LED current
80 Ta = 25°C, Vcc = 10 V
Vth = 1.5 V
1KΩ
60
220Ω
40
470Ω
20
100Ω
0
0
5
10
15
20
IF - LED Current - mA
Figure 5. High to low propagation delay versus
collector load resistamce and LED current
20
1KΩ
Ta = 25°C
15
Vcc = 10 V
Vth = 1. 5 V
10
100Ω
5
0
0
5
10
15
20
IF - LED Current - mA
Figure 6. Switching timing
IF
tD
VO
tR
tPLH
tPHL
VTH=1.5 V
tS
tF
Figure 7. Switching schematic
VCC=10 V
F=10 KHz,
DF=50%
RL
VO
IF=5 mA
ILD32/ILQ32
5–2