H21LTB_04 Datasheet, PDF (7/9 Pages) Fairchild Semiconductor – OPTOLOGIC OPTICAL INTERRUPTER SWITCH

OPTOLOGIC^® OPTICAL
INTERRUPTER SWITCH
H21LTB
H21LTI
Figure 5. Normalized Threshold Current
vs. Ambient Temperature
1.8
1.6
1.4
1.2
1.0
I_{F (ON)}
0.8
I_{F (OFF)}
0.6
Normalized to:
V_CC = 5 V
T_A = 25˚C
I_{F (OFF)}
I_{F (ON)}
0.4
0.2
0.0
-40
-20
0
20
40
60
T_A - Ambient Temperature (˚C)
80
100
H21LOB
H21LOI
Figure 6. Forward Current vs. Forward Voltage
100
T_A = 25˚C
80
60
40
20
0
1.0
1.1
1.2
1.3
1.4
1.5
1.6
V_F - Forward Voltage (V)
Figure 7. Low Output Voltage
vs. Output Current
1
V_CC = 5 V
T_A = 25˚C
I_F = 10 mA
0.1
0.01
1
10
I_O - Output Current (mA)
Figure 8. Response Time vs. Forward Current
5
V_CC = 5 V
R_L = 270 Ω
4 ^{TA = 25˚C}
I_F Pulsed
T = 10 ms
Duty Cycle = 50%
3
2
1
T_PLH
T_PHL
0
0
5
10
15
20
I_F - Forward Current (mA)
© 2004 Fairchild Semiconductor Corporation
Page 7 of 9
11/2/04