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| HCPL-2731 Datasheet, PDF (7/15 Pages) Fairchild Semiconductor – LOW INPUT CURRENT HIGH GAIN SPLIT DARLINGTON OPTOCOUPLERS | |||
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Fig. 4 LED Forward Current vs. Forward Voltage
100
10
TA = 85ËC
1 TA = 70ËC
0.1
0.01
TA = 25ËC TA = -40ËC
TA = 0ËC
0.001
1.0
1.1
1.2
1.3
1.4
1.5
1.6
FORWARD VOLTAGE - VF (V)
Fig. 6 Non-saturated Rise and Fall Times vs.
Load Resistance (6N138 / 6N139 Only)
100
TA = 25ËC
tf
10
tr
IF ADJUSTED FOR VOL = 2 V
1
0.1
1
10
RL - LOAD RESISTANCE (kâ¦)
Fig. 8 Propagation Delay To Logic Low
vs. Base-Emitter Resistance
(HCPL-2730 / HCPL-2731 Only)
6
IF = 1.6 mA, VCC = 5 V
5
RL = 2.2 K, TA = 25°C
Normalized to RBE = None
4
3
2
1
0
0.01
0.1
1
10
RBE - BASE-EMITTER RESISTANCE - Mâ¦
Fig. 5 LED Forward Voltage vs. Temperature
1.5
IF = 1.6 mA
1.4
1.3
1.2
1.1
-40 -20
0
20
40
60
80 100
TEMPERATURE - TA (ËC)
Fig. 7 Non-saturated Rise and Fall Times vs.
Load Resistance (HCPL-2730 / HCPL-2731 Only)
TA = 25ËC
tf
10
tr
1
0.1
1
10
RL - LOAD RESISTANCE (kâ¦)
Fig. 9 Current Transfer Ratio vs. Forward Current
(6N138 / 6N139 Only)
VCC = 5 V
1600 VO= 0.4 V
1200
TA = 85ËC
800
400
0
0.01
TA = 70ËC
TA = 25ËC
TA = 0ËC
TA = -40ËC
0.1
1
10
IF - FORWARD CURRENT - mA
7
Single-Channel: 6N138, 6N139 Dual-Channel: HCPL-2730, HCPL-2731 Rev. 1.0.0
www.fairchildsemi.com
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