FOD070L Datasheet, PDF (5/17 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. 1 Input Forward Current vs Forward Voltage
100
10
TA = 85°C
TA = 70°C
1
TA = 25°C
0.1
TA = -40°C
TA = 0°C
0.01
0.001
0.9
1.0
1.1 1.2
1.3
1.4
1.5
1.6
1.7
VF - FORWARD VOLTAGE (V)
Fig. 3 Current Transfer Ratio vs. Input Forward Current
(FOD070L only)
4500
4000
3500
TA = 85°C
TA = 70°C
VO = 0.4V
VCC = 3.3V
TA = 25°C
3000
TA = 25°C
2500
2000
TA = 0°C
1500
1000
TA = -40°C
500
0
0.1
1
10
IF - FORWARD CURRENT (mA)
Fig. 5 DC Transfer Charactersitics (FOD070L, FOD270L)
160
TA = 25°C
140 ^{VCC = 3.3V}
120
100
80
60
IF = 5mA
IF = 4.5mA
4mA
3.5mA
3mA
2.5mA
2mA
1.5mA
40
1mA
20
0.5mA
0
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
V_O - OUTPUT VOLTAGE (V)
Fig. 2 Current Transfer Ratio vs. Input Forward Current
(FOD270L only)
4500
4000
3500
3000
TA = 85°C
TA = 70°C
TA = 25°C
VO = 0.4V
VCC = 3.3V
TA = 25°C
2500
2000
TA = 0°C
1500
1000
TA = -40°C
500
0
0.1
1
10
IF - FORWARD CURRENT (mA)
Fig. 4 Current Transfer Ratio vs. Input Forward Current
(FOD073L only)
3500
3000
TA = 85°C
VO = 0.4V
VCC = 3.3V
TA = 25°C
2500
TA = 70°C
TA = 25°C
2000
TA = 0°C
1500
1000
500
TA = -40°C
0
0.1
1
10
IF - FORWARD CURRENT (mA)
Fig. 6 DC Transfer Characterstics (FOD073L only)
140
TA = 25°C
VCC = 3.3V
120
100
80
60
40
20
IF = 5mA
IF = 4.5mA
4mA
3.5mA
3mA
2.5mA
2mA
1.5mA
1mA
0.5mA
0
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
V_O - OUTPUT VOLTAGE (V)
© 2004 Fairchild Semiconductor Corporation
Page 5 of 17
8/10/04