Features
l
Miniature package
l
Photo IC, open collector output
l
P4855: "H" level output at light input
P4856: "L" level output at light input
Applications
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Paper detection in copiers and printers, etc.
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Tape end detection in VTRs, tape recorders, etc.
P H O T O R E F L E C T O R
Photoreflector
Photo IC output (digital) photoreflectors
P4855, P4856
P4855 and P4856 are photoreflectors combining a high power infrared LED and a single chip photo IC consisting of a high sensitivity photodiode,
amplifier, schmitt trigger circuit, and output phototransistor, etc.
s
Absolute maximum ratings (Ta=25 C)
Parameter
Symbol
Value
Unit
Forward current
I
F
50
mA
Reverse voltage
V
R
Max.
5
V
Input
(LED) Power dissipation
P
80
mW
Supply voltage
Vcc
-0.5 to +12
V
Output voltage
Vo
-0.5 to +12
V
Low level output current
I
O
50
mA
Output
(photo IC)
Power dissipation
P
150
mW
Operating temperature
Topr
-25 to +85
C
Storage temperature
Tstg
-30 to +85
C
Soldering
-
260 C, 3 s, refer to Dimensional outline
-
s
Electrical and optical characteristics (Ta=25 C, Vcc=5 V, unless otherwise noted)
P4855
P4856
Parameter
Symbol
Condition
Min.
Typ. Max. Min.
Typ. Max. Unit
Forward voltage
V
F
I
F
=20 mA
-
1.3
1.6
-
1.3
1.6
V
Reverse current
I
R
V
R
=5 V
-
-
10
-
-
10
A
Input
(LED)
Terminal capacitance
Ct
V=0 V, f=1 MHz
-
30
-
-
30
-
pF
Operating supply voltage
Vcc
4.5
-
12
4.5
-
12
V
Low level output voltage
V
OL
I
OL
=16 mA *
1
-
0.1
0.4
-
0.1
0.4
V
High level output current
I
OH
Vo=5 V *
2
-
-
100
-
-
100
A
Current consumption at low level output
I
CCL
*
1
-
3.5
12
-
3.5
12
mA
Output
(photo IC)
Current consumption at high level output
I
CCH
*
2
-
1.8
10
-
2.3
10
mA
LH Threshold illuminance
I
FLH
-
-
15
-
-
-
mA
HL Threshold illuminance
I
FHL
R
L
=280 , d=3 mm
Reflecting surface:
white paper
(reflectivity 90 % or more)
-
-
-
-
-
15
mA
Hysterisis
-
*
3
-
0.9
-
-
0.9
-
-
LH Propagation delay time
t
PLH
-
-
9
-
-
15
s
HL Propagation delay time
t
PHL
-
-
15
-
-
9
s
Rise time
tr
-
0.15
-
-
0.15
-
s
Transfer
?D=H=?JAHEIJE?I
Fall time
tf
I
F
=20 mA
R
L
=280
d=3 mm
-
0.03
-
-
0.03
-
s
*1: P4855: I
F
=0 mA, P4856: I
F
=20 mA
*2: P4855: I
F
=20 mA, P4856: I
F
=0 mA
*3: P4855: I
FHL
/I
FLH
, P4856: I
FLH
/I
FHL
Note) Connect a 0.01 F capacitor or larger between Vcc and GND.
HAMAMATSU PHOTONICS K.K., Solid State Division
1126-1 Ichino-cho, Hamamatsu City, 435-8558 Japan, Telephone: (81) 053-434-3311, Fax: (81) 053-434-5184, http://www.hamamatsu.com
U.S.A.: Hamamatsu Corporation: 360 Foothill Road, P.O.Box 6910, Bridgewater, N.J. 08807-0910, U.S.A., Telephone: (1) 908-231-0960, Fax: (1) 908-231-1218
Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: (49) 08152-3750, Fax: (49) 08152-2658
France: Hamamatsu Photonics France S.A.R.L.: 8, Rue du Saule Trapu, Parc du Moulin de Massy, 91882 Massy Cedex, France, Telephone: 33-(1) 69 53 71 00, Fax: 33-(1) 69 53 71 10
United Kingdom: Hamamatsu Photonics UK Limited: 2 Howard Court, 10 Tewin Road, Welwyn Garden City, Hertfordshire AL7 1BW, United Kingdom, Telephone: (44) 1707-294888, Fax: (44) 1707-325777
North Europe: Hamamatsu Photonics Norden AB: Smidesvgen 12, SE-171 41 Solna, Sweden, Telephone: (46) 8-509-031-00, Fax: (46) 8-509-031-01
Italy: Hamamatsu Photonics Italia S.R.L.: Strada della Moia, 1/E, 20020 Arese, (Milano), Italy, Telephone: (39) 02-935-81-733, Fax: (39) 02-935-81-741
Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions.
Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. 2001 Hamamatsu Photonics K.K.
Photoreflector
P4855, P4856
Cat. No. KPC1004E02
Mar. 2001 DN
POWER DISSIPATION (mW)
AMBIENT TEMPERATURE (C)
180
160
140
120
100
80
60
40
20
0
-25
0
25
50
75
100
(Typ.)
s
Photo IC power dissipation vs. ambient temperature
KPICB0023EA
KPCA0002EA
s
Dimensional outline (unit: mm)
s
LED forward current vs. ambient temperature
4.0
4.2
1.7
0.8 0.3
3.5 MIN.
0.6
0.4
2.1
2.54
(SPECIFIED AT THE LEAD ROOT)
CATHODE
ANODE
V
O
GND
Vcc
Tolerance unless otherwise
noted: 0.2
Shaded area indicates burr.
INDEX MARK
(WHITE LINE)
4.2
5.6 0.3
0
13
0.16
1.4
+0.2
-0.1
SOLDER THE LEADS AT A
POINT BELOW THIS POSITION.
s
Response time measurement circuit (P4855)
KPCC0001EA
5 V
Vo
R
L
0.01
m
F
I
F
t
PLH
Vo
tr
tf
V
OL
10 %
1.5 V
90 %
V
OH
50 %
t
PHL
PULSE INPUT
100
-25
0
25
50
75
0
AMBIENT TEMPERATURE (C)
FOR
W
ARD CURRENT (mA)
70
(Typ.)
60
50
40
30
20
10
KLEDB0081EA
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