FOD070L Datasheet, PDF (7/17 Pages) Fairchild Semiconductor – LVTTL/LVCMOS COMPATIBLE LOW INPUT CURRENT HIGH GAIN SPLIT DARLINGTON OPTOCOUPLERS

SINGLE CHANNEL:
DUAL CHANNEL:
LVTTL/LVCMOS COMPATIBLE LOW INPUT
CURRENT HIGH GAIN SPLIT DARLINGTON
OPTOCOUPLERS
FOD070L
FOD073L
FOD270L
TYPICAL PERFORMANCE CURVES
Fig. 13 Propagation Delay vs.
Ambient Temperature (FOD070L, FOD270L)
14
140
VCC = 3.3V
IF = 0.5mA
12 _{RL = 4.7kΩ}
120
1/f = 200µs
Duty Cycle = 10%
10
100
8
80
tPLH
6
60
4
40
tPHL
2
20
0
-40
-20
0
0
20
40
60
80
100
T_A - Ambient Temperature (°C)
Fig. 14 Propagation Delay To Logic Low vs Pulse Period
(FOD073L, FOD070L, FOD270L)
100
TA = 25°C
VCC = 3.3V
I = 0.5mA
RL = 4.7kΩ
Duty Cycle = 50µs
FOD073L
10
FOD070L,
FOD270L
1
0.01
0.1
1
10
T - Pulse Period (ms)
Fig. 15 Propagation Delay vs.
Input Forward Current (FOD270L only)
5
52
TA = 25°C
VCC = 3.3V
4
RL = 4.7kΩ
1/f = 100µs
50
Duty Cycle = 10%
tPLH
3
48
2
46
1
44
tPHL
0
42
0
1
2
3
4
5
6
7
8
9
10
I _F - Input Forward Current (mA)
Fig. 16 Propagation Delay vs.
Input Forward Current (FOD073L only)
12
28
TA = 25°C
VCC = 3.3V
10 RL = 4.7kΩ
26
1/f = 100µs
Duty Cycle = 10%
8
tPLH
24
6
22
4
20
2
18
tPHL
0
16
0
1
2
3
4
5
6
7
8
9
10
I _F - Input Forward Current (mA)
© 2004 Fairchild Semiconductor Corporation
Page 7 of 17
8/10/04