IL55B Datasheet, PDF (2/2 Pages) Siemens Semiconductor Group – PHOTODARLINGTON OPTOCOUPLER

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 T_A=25°C versus LED current
1.2 _{Normalized to:}
1.0 ^{Vce = 5 V}
IF = 10 mA
0.8 Ta = 25 °C
Vce = 5V
0.6
0.4
0.2
0.0
.1
Vce =1V
1
10
100
IF - LED Current - mA
1000
Figure 3. Normalized non-saturated and saturated
collector-emitter current versus LED current
10 _{Normalized to:}
Ta = 25°C
1 ^{IF = 10 mA}
Vce = 5 V
.1
Vce = 5 V
Vce = 1V
.01
.001
.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 = 5V}
Vth = 1.5 V
60
1KΩ
220Ω
40
470Ω
20
100Ω
0
0
5
10
15
20
IF - LED Current - mA
Figure 5. High to low propagation delay verus
collector load resistance and LED current
20
1KΩ
Ta = 25°C
15
Vcc = 5 V
Vth = 1.5 V
10
100Ω
5
0
0
5
10
15
20
IF - LED Current - mA
Figure 6. Switching waveforms
I_F
t_D
V₀
t_R
t_PLH
t_PHL
t_S
Figure 7. Switching schematic
V_CC=13.5 V
F=10 KHz,
DF=50%
R_C
V_O
V_TH=1.5 V
t_F
IF=50 mA
IL55B
5–2