Datasheet

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Document Number: 83652
8 Rev. 1.6, 04-Mar-11
ILD615, ILQ615
Vishay Semiconductors
Optocoupler, Phototransistor Output
(Dual, Quad Channel)
Fig. 9 - Peak LED Current vs. Pulse Duration, 
Fig. 10 - Maximum Detector Power Dissipation
Fig. 11 - Maximum Collector Current vs. Collector Voltage
Fig. 12 - Normalization Factor
for Non-Saturated and Saturated CTR vs. I
F
Fig. 13 - Normalization Factor
for Non-Saturated and Saturated CTR vs. I
F
Fig. 14 - Normalization Factor
for Non-Saturated and Saturated CTR vs. I
F
iild615_08
10
-6
10
-5
10
-4
10
-3
10
-2
10
-1
10
0
10
1
10 000
1000
100
10
t - LED Pulse Duration (s)
I
f(pk)
- Peak LED Current (mA)
0.005
τ
0.05
0.02
0.01
0.1
0.2
0.5
Duty Factor
t
τ
DF = /t
iild615_09
- 60 - 40 - 20 0 20 40 60 80 100
0
50
100
150
200
T
amb
- Ambient Temperature (°C)
P
DET
- Detector Power (mW)
iild615_10
0.1 10 100
1000
100
10
1
0.1
V
CE
- Collector Emitter Voltage (V)
I
CE
- Collector Current (mA)
25 °C
50 °C
75 °C
90 °C
1
R
th
= 500 °C/W
iild615_11
CTR
NF
- Normalized CTR Factor
0.1 1 10 100
2.0
1.5
1.0
0.5
0.0
I
F
- LED Current (mA)
NCTR
ce
T
A
= 25 °C
Normalized to:
V
ce
= 10 V, I
F
= 5 mA,
CTR
ce(sat)
V
ce
= 0.4 V
NCTR
ce(sat)
iild615_12
CTR
NF
- Normalized CTR Factor
0.1 1 10 100
2.0
1.5
1.0
0.5
0.0
I
F
- LED Current (mA)
NCTR
ce
T
A
= 50 °C
Normalized to:
V
CE
= 10 V, I
F
= 5 mA
CTR
ce(sat)
V
CE
= 0.4 V
NCTR
ce(sat)
iild615_13
0.1 1 10 100
2.0
1.5
1.0
0.5
0.0
NCTR
ce
T
A
= 70 °C
Normalized to:
NCTR
ce(sat)
CTR
NF
- Normalized CTR Factor
I
F
- LED Current (mA)
V
CE
= 10 V, I
F
= 5 mA
CTR
ce(sat)
V
CE
= 0.4 V