CNW138 Datasheet, PDF (5/8 Pages) Fairchild Semiconductor – 8-PIN WIDE BODY, HIGH-GAIN OPTOCOUPLERS

8-PIN WIDE BODY, HIGH-GAIN
OPTOCOUPLERS
CNW138 CNW139
Fig. 4 LED Forward Current vs. Forward Voltage
100
T_A = 25 C
10
1
0.1
0.01
0 001
1.2 1.3 1.4 1 5 1.6 1.7 1.8 1.9 2.0
FORWARD VOLTAGE - V_F (V)
Fig. 6 Normalized Current Transfer Ratio
vs. Ambient Temperature
1.4
I_F = 1.6mA
V_CC = 4 5V
1.2 ^{VO = 0.4V}
1.0
0.8
0.6
0.4
0.2
Normalized to T_A = 25 C
0.0
-50
-25
0
25
50
75
100
125
AMBIENT TEMPERATURE - T_A (˚C)
Fig. 5 Normalized Current Transfer Ratio
vs. Forward Current
1.4
I_F = 1.6mA
V_CC = 4 5V
1.2 ^{VO = 0.4V}
T_A =25 C
1.0
0.8
0.6
0.4
0.2
0.0 ^{Normalized to IF = 1.6mA}
0.1
1
10
FORWARD CURRENT - I_F (mA)
Fig. 7 Logic Low Supply Current vs. Forward Current
12
10
8
V_CC = 18V
6
V_CC = 5V
4
2
0
0 5 10 15 20 25 30 35 40 45 50
FORWARD CURRENT - I_F (mA)
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6/04/01 DS300400