P6448 Datasheet, PDF (1/2 Pages) Hamamatsu Corporation – Light modulation photoreflector

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
l Compact size (35 × 10 × 17 mm)
l Detection distance: 30 cm Typ.
l Allowable background light level: 2000 lx Min.
Applications
l Reflective optical switches
s Absolute maximum ratings (Ta=25 °C)
Parameter
Symbol
Value
Unit
Supply voltage
Vcc
-0.5 to +7
V
Output current
Io
50
mA
Output voltage
Vo
-0.5 to +12
V
Operating temperature
Topr
-20 to +60
°C
Storage temperature
Tstg
-30 to +85
°C
s Electrical and optical characteristics (Ta=25 °C, Vcc=5 V, unless otherwise noted)
Parameter
Symbol
Condition
Min.
Typ.
Max.
Unit
Supply voltage
Vcc
4.75
-
5.25
V
Current consumption
Icc
Vo open, no emission
During LED emission
-
-
-
11
mA
80
200
mA
Low level output voltage
VOL IOL=16 mA
-
0.15
0.4
V
High level output voltage
VOH
RL=4.7 kΩ
(connected between Vcc-Vo)
4.5
-
-
V
Maximum detectable
distance *¹
d
Reflective paper with
reflectivity of 90 %
200
300
-
mm
Emission light pulse cycle
tc
-
130
-
µs
Emission light pulse width tw
-
8
-
µs
H→L Propagation delay time tPHL
-
-
1
ms
L→H Propagation delay time tPLH
-
-
1
ms
Allowable background
light level
Ex
Background light: “A”
light source *²
2000
-
-
lx
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 “L” while bringing the
paper close to P6448 operated with “H” level output. (The photo IC has hysteresis characteristics, so the distance when the output
changes from “L” to “H” is longer than that when the output changes from “H” to “L”.)
*2: No direct light source within field of view.
*3: Hysteresis: ^ELH
EHL
ELH: Input signal level at which the output changes from“L” to “H” level.
EHL: Input signal level at which the output changes from“H” to “L” level.