HCPL-2731 Datasheet, PDF (8/15 Pages) Fairchild Semiconductor – LOW INPUT CURRENT HIGH GAIN SPLIT DARLINGTON OPTOCOUPLERS

Fig. 10 Current Transfer Ratio vs. Base-Emitter Resistance
(6N138 / 6N139 Only)
1600
1400
1200
1000
800
600
400
200
0
1
I_F = 1.6 mA
V_CC = 5 V
V_O = 0.4 V
10
100
1000
R_BE - BASE RESISTANCE (kΩ)
Fig. 12 Output Current vs Output Voltage
(6N138 / 6N139 Only)
60
V_CC = 5V
T_A = 25˚C
50
5 mA
4.5 mA
4 mA
3.5 mA
3 mA
2.5 mA
40
2 mA
30
1.5 mA
20
1 mA
10
0
0
1
2
V_O - OUTPUT VOLTAGE (V)
Fig. 14 Output Current vs. Input Diode Forward Current
(6N138 / 6N139 Only)
100
V_CC = 5 V
10 ^{VO = 0.4 V}
1
T_A = 85˚C
0
T_A = 70˚C
T_A = 25˚C
T_A = 0˚C
T_A = -40˚C
0
0.01
0.1
1
10
IF - INPUT DIODE FORWARD CURRENT - mA
Fig. 11 Current Transfer Ratio vs. Forward Current
(HCPL-2730 / HCPL-2731 Only)
5000
4000
VCC = 5 V
VO = 0.4 V
3000
TA = 70˚C
TA = 85˚C
TA = 25˚C
TA = 0˚C
2000
TA = -40˚C
1000
0
0.1
1
10
100
I_F - FORWARD CURRENT - mA
Fig. 13 Output Current vs Output Voltage
(HCPL-2730 / HCPL-2731 Only)
120
TA = 25˚C
VCC = 5.0 V
100
IF = 4.0 mA
IF = 3.5 mA
80
IF = 4.5 mA
60
IF = 5.0 mA
IF = 3.0 mA
IF = 2.5 mA
IF = 2.0 mA
IF = 1.5 mA
40
IF = 1.0 mA
20
IF = 0.5 mA
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. 15 Output Current vs
Input Diode Forward Current
(HCPL-2730 / HCPL-2731 Only)
100
V_CC = 5.0 V
VO = 0.4 V
T_A = 85˚C
10
T_A = 25˚C
1
T_A = -40˚C
0.1
0.1
1
10
100
IF - INPUT DIODE FORWARD CURRENT - mA
8
Single-Channel: 6N138, 6N139 Dual-Channel: HCPL-2730, HCPL-2731 Rev. 1.0.0
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