A. Turn-On Time vs. LED Current (LH1517)
10
IL = 50 mA
8
6
–40 °C
4
25 °C
85 °C
2
0
0
10
20
30
40
50
LED FORWARD CURRENT (mA)
C. Turn-On Time vs. LED Current (LH1530)
10
IL = 50 mA
8
6
4
–40 °C
25 °C
2
85 °C
0
0
10
20
30
40
50
LED FORWARD CURRENT (mA)
E. Turn-Off Time vs. LED Current (LH1500, LH1530,
LH1540)
0.9
IL = 50 mA
0.8
–40 °C
0.7
0.6
0.5
25 °C
0.4
85 °C
0.3
0.2
0
10
20
30
40
50
LED FORWARD CURRENT (mA)
B. Turn-On Time vs. LED Current (LH1525)
3.0
2.4
1.8
85 °C
1.2
25 °C
–40 °C
0.6
0.0
0
4
8
12
16
20
LED FORWARD CURRENT (mA)
D. Turn-On Time vs. LED Current (LH1541)
1.50
1.25
+85 °C
1.00
+25 °C
0.75
–40 °C
0.50
0.25
0
0
5
10
15
20
LED FORWARD CURRENT (mA)
F. Turn-Off Time vs. LED Current (LH1504)
4.5
4.0
IL = 50 mA
3.5
–40 °C
3.0
2.5
25 °C
2.0
1.5
85 °C
1.0
0.5
0
10
20
30
40
50
LED FORWARD CURRENT (mA)
Siemens Microelectronics, Inc. • Optoelectronics Division
www.smi.siemens.com/opto/
18 of 20
LH1530, LH1535, LH1540, LH1541, LH1550
October 1998