P5747 consists of a photo IC, an LED and a mask slit enclosed in a C-shape plastic package. When used with a rotary disk (codewheel) or linear scale
(codestrip), P5747 serves as a rotary or linear encoder that provides incremental two-phase digital outputs.
P5747 uses the moire stripe slit method for incremental encoding. Light passing through the slits is detected by the 4-channel photodiode array in the
photo IC and the detected signals are digitally processed. This method delivers a high resolution of 42 µm equal to 1/4 of the slit pitch (169 µm).
Features
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High resolution: 42 µm
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Incremental two-phase digital output
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TTL compatible
Applications
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Head positioning for compact printers, etc.
PHOTOINTERRUPTER
Photointerrupter
High resolution photointerrupter
P5747
■ Absolute maximum ratings (Ta=25 °C)
Parameter Symbol Value Unit
Forward current *1IF65 mA
Pulse forward current *2IFP 1 A
Reverse voltage VR Max. 5 V
Input
(LED)
Power dissipation P100 mW
Supply voltage Vcc 7 V
Low level output current IOL 20 mA
Output
(photo IC) Power dissipation *3P250mW
Operating temperature Topr 0 to +70 °C
Storage temperature Tstg -30 to +80 °C
*1: Derate forward current at a rate of 0.8 mA/°C above Ta=25 °C.
*2: Pulse width ≤ 100 µs, duty ratio ≤ 1/100
*3: Derate power dissipation at a rate of 3.3 mA/°C above Ta=25 °C.
■ Electrical and optical characteristics (Ta=25 °C, Vcc=5 V, IF=15 mA, unless otherwise noted)
Parameter Symbol Condition Min. Typ. Max. Unit
Forward voltage VF- 1.41 1.9 V
Input
(LED) Reverse current IRVR=5 V - - 100 µA
High level voltage VAH 4.9 - -
Phase A Low level voltage VAL IOL=8 mA - 0.2 0.4
High level voltage VBH 4.9 - -
Phase B Low level voltage VBL IOL=8 mA -0.2 0.4
V
Output
(photo IC)
Current consumption - Phase A, B: low - 6 20 mA
Duty ratio DA, DB30 50 70 %
Phase difference θAB 30 90 150 degree
Rise time tr -1.0 2.0 µs
Transfer
?D=H=?JAHEIJE?I
Fall time tf
f=12 kHz
-1.0 2.0 µs
Photointerrupter
P5747
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: Smidesvägen 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.
Cat. No. KPC1001E01
Mar. 2001 DN
2
0.8 ± 0.15
12
6.4 ± 0.15
(7.1) (1.27)
9.9
9.9 MIN.
8.5 MIN. 4.4
6.4
R1.4 ± 0.15
R2.6
11.4
6
1.4 ± 0.152.5 ± 0.15
8.8
9.5 MIN.
7.3 ± 0.1
2 ± 0.15
+0.2
-0.1
2 ± 0.1
15.0 ± 0.15
20.2
MASK SLIT
(2.4)
(9.5)
(0.4)
2.5
(1.27)
(0.4)
(0.45)
(1.27)
Vcc
GND
VOA
VOB
LED CATHODE
LED ANODE
Tolerance unless otherwise
noted: ±0.3
Values in parentheses are not
guaranteed, but for reference.
tAH
tAB tBH
tBP
tAP
PHASE A OUTPUT
(VOA)
PHASE B OUTPUT
(VOB)
DA = × 100
tAH
tAP
DB = × 100
tBH
tBP
q
AB = × 360˚
tAB
tAP
■ Output transition diagram
KPCC0006EA
■ Dimensional outline (unit: mm)
KPCA0004EA
