TPS5904_12 Datasheet, PDF (7/12 Pages) Texas Instruments – OPTOISOLATED FEEDBACK AMPLIFIERS

TPS5904, TPS5904A
OPTOISOLATED FEEDBACK AMPLIFIERS
SOES016D − MAY 1995 − REVISED JANUARY 1998
TYPICAL CHARACTERISTICS
CURRENT TRANSFER RATIO
vs
INPUT LIGHT-EMITTING-DIODE CURRENT
300
V_CE = 5 V
250
COLLECTOR-TO-EMITTER SATURATION VOLTAGE
vs
FREE-AIR TEMPERATURE
0.20
0.18
I_I(LED) = 10 mA
I_C = 1 mA
200
0.16
150
0.14
100
0.12
50
0.10
0
1
23 5
10
20 30 50
I_I(LED) − Input Light-Emitting-Diode Current − mA
0.08
− 50 − 25
0
25
50
75
100
T_A − Free-Air Temperature − °C
Figure 15
Figure 16
INPUT LIGHT-EMITTING-DIODE FORWARD CURRENT
vs
LIGHT-EMITTING-DIODE FORWARD VOLTAGE
60
50
40
T_A = 75°C
30
T_A = 25°C
20
T_A = − 25°C
10
0
0.8 0.9
1
1.1
1.2
1.3
1.4
V_F − Light-Emitting-Diode Forward Voltage − V
Figure 17
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