PHOTOREFLECTOR
Light modulation photoreflector
P6448
Compact module combining light modulation photo IC and infrared LED
P6448 is a photoreflector consisting of a light modulation photo IC and an infrared LED, etc. The light modulation photo IC allows reliable
operation even under background disturbance light.
Features
Applications
l
Compact size (35 脳 10 脳 17 mm)
l
Detection distance: 30 cm Typ.
l
Allowable background light level: 2000
lx
Min.
l
Reflective optical switches
s
Absolute maximum ratings (Ta=25 擄C)
Parameter
Supply voltage
Output current
Output voltage
Operating temperature
Storage temperature
Parameter
Supply voltage
Symbol
Vcc
Io
Vo
Topr
Tstg
Symbol
Vcc
Icc
V
OL
V
OH
Value
-0.5 to +7
50
-0.5 to +12
-20 to +60
-30 to +85
Condition
Min.
4.75
-
-
-
4.5
Typ.
-
-
80
0.15
-
Max.
5.25
11
200
0.4
-
Unit
V
mA
V
擄C
擄C
Unit
V
mA
mA
V
V
s
Electrical and optical characteristics (Ta=25 擄C, Vcc=5 V, unless otherwise noted)
Vo open, no emission
During LED emission
I
OL
=16 mA
R
L
=4.7 k鈩?/div>
(connected between Vcc-Vo)
Reflective paper with
reflectivity of 90 %
Current consumption
Low level output voltage
High level output voltage
Maximum detectable
d
200
300
-
mm
distance *
1
Emission light pulse cycle
tc
-
130
-
碌s
Emission light pulse width
tw
-
8
-
碌s
H鈫扡 Propagation delay time
t
PHL
-
-
1
ms
L鈫扝 Propagation delay time
-
-
1
ms
t
PLH
Allowable background
Background light: 聯(lián)A聰
Ex
2000
-
-
lx
light level
light source *
2
Hysteresis *
3
Hys
0.45
0.65
0.95
-
*1: Distance between P6448 and reflective paper (reflectivity 90 %) when the photo IC output level changes to 聯(lián)L聰 while bringing the
paper close to P6448 operated with 聯(lián)H聰 level output. (The photo IC has hysteresis characteristics, so the distance when the output
changes from 聯(lián)L聰 to 聯(lián)H聰 is longer than that when the output changes from 聯(lián)H聰 to 聯(lián)L聰.)
*2: No direct light source within field of view.
E
LH
*3: Hysteresis:
E
HL
ELH: Input signal level at which the output changes from聯(lián)L聰 to 聯(lián)H聰 level.
EHL: Input signal level at which the output changes from聯(lián)H聰 to 聯(lián)L聰 level.
1
2
