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Photologic
?/DIV>
 Slotted Optical Switch
OPB120A, OPB120B, OPB121A, OPB121B
OPB122A, OPB122B, OPB123A, OPB123B
OPTEK Technology Inc.  1645 Wallace Drive, Carrollton, Texas 75006 
Phone: (972) 323-2200 or (800) 341-4747      FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com
Issue B 08/2011
Page 3 of 5
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Notes:
(1)   Normal application would be with light source blocked, simulated by I
F
= 00.
Electrical Characteristics (T
A
 = 40癈 to + 70?unless otherwise noted)
SYMBOL
PARAMETER
MIN   TYP    MAX    UNITS
TEST CONDITIONS
Input Diode (see OP240 for additional information) 
V
F
 
Forward Voltage
-
-
1.7
V
I
F
 = 20 mA, T
A
 = 25?C
I
R
 
Reverse Current
-
-
100
礎     V
R
 = 2 V, T
A
 = 25?C
Output Photologic?Sensor (see OPL560 for additional information)
V
CC
 
Operating D.C. Supply Voltage
4.75
-
5.25
V
 
I
CCL
 
Low Level Supply Current:
Buffered Totem-Pole Output
Buffered Open-Collector Output
-
-
15
mA     V
CC
 = 5.25 V, I
F
 = 0 mA
(1)
Inverted Totem-Pole Output
Inverted Open-Collector Output
-
-
15
mA     V
CC
 = 5.25 V, I
F
 = 20 mA
 
I
CCH
 
High Level Supply Current:
Buffered Totem-Pole Output
Buffered Open-Collector Output
-
-
15
mA     V
CC
 = 5.25 V, I
F
 = 20 mA
 
Inverted Totem-Pole Output
Inverted Open-Collector Output
-
-
15
mA     V
CC
 = 5.25 V, I
F
 = 0 mA
(1)
V
OL
 
Low Level Output Voltage:
Buffered Totem-Pole Output
Buffered Open-Collector Output
-
-
0.4
V
V
CC
 = 4.75 V, I
OL
 = 12.8 mA, I
F
 = 0 mA
(1)
Inverted Totem-Pole Output
Inverted Open-Collector Output
-
-
0.4
V
V
CC
 = 4.75 V, I
OL
 = 12.8 mA, I
F
 = 20 mA
 
V
OH
 
High Level Output Voltage:
Buffered Totem-Pole Output
2.4
-
-
V
V
CC
 = 4.75 V, I
OH
 = -800 礎, I
F
 = 20 mA
 
Inverted Totem-Pole Output
2.4
-
-
V
V
CC
 = 4.75 V, I
OH
 = -800 礎, I
F
 = 0 mA
(1)
I
OH
 
High Level Output Voltage:
Buffered Open-Collector Output
-
-
100
礎
V
CC
 = 4.75 V, V
OH
 = 30 V, I
F
 = 25 mA,
T
A
 = 25?C 
Inverted Open-Collector Output
-
-
100
礎
V
CC
 = 4.75 V, V
OH
 = 30 V, I
F
 = 0 mA,
T
A
= 25?C 
I
F
(+)     LED Positive-Going Threshold Current
-
-
15
mA     V
CC
 = 5 V, T
A
 = 25?C
I
F
(+)/I
F
(-) Hysteresis
-
2
-
-
V
CC
 = 5 V
 
I
OS
 
Short Circuit Output Current:
Buffered Totem-Pole Output
-20
-
-100
mA
V
CC
 = 5.25 V, I
F
 = 20 mA
(2)
Output = GND
 
Inverted Totem-Pole Output
-20
-
-100
mA
V
CC
 = 5.25 V, I
F
 = 0 mA
(2)
Output = GND
 
t
r
, t
f
 
Output Rise Time, Output Fall Time
-
70
-
ns
t
PLH
, t
PHL
    Propagation Delay Low-High & High-Low
-
5
-
祍
V
CC
 = 5 V, T
A
 = 25?C
I
F
 = 0 or 20 mA
R
L
 = 8 TTL Loads (Totem-Pole)
R
L
 = 360 & (Open-Collector)
 
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