Datasheet

www.vishay.com
4
Document Number 83629
Rev. 1.4, 26-Apr-04
VISHAY
IL420/ IL4208
Vishay Semiconductors
Switching Characteristics
Typical Characteristics (T
amb
= 25 °C unless otherwise specified)
Parameter Test condition Symbol Min Ty p. Max Unit
Turn-on time V
RM
= V
DM
= V
D(RMS)
t
on
35 µs
PF = 1.0, I
T
= 300 mA t
off
50 µs
Fig. 1 Forward Voltage vs. Forward Current
Fig. 2 Peak LED Current vs. Duty Factor, Tau
iil420_01
100101.1
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
IF - Forward Current - mA
VF - Forward Voltage - V
Ta = -55°C
Ta = 25°C
Ta = 85°C
iil420_02
10
-6
10
-5
10
-4
10
-3
10
-2
10
-1
10
0
10
1
10
100
1000
10000
t -LED Pulse Duration -s
If(pk) - Peak LED Current - mA
.005
.05
.02
.01
.1
.2
.5
Duty Factor
t
τ
DF = /t
τ
Fig. 3 Maximum LED Power Dissipation
Fig. 4 Typical Output Characteristics
iil420_03
100806040200-20-40-60
0
50
100
150
Ta - Ambient Temperature - °C
LED - LED Power - mW
iil420_04
I
T
= f(V
T
),
parameter: T
j