S6841 and S8119 are specifically designed for optical switches. A transmission mode or reflection mode optical switch can be
easily configured when used in combination with an LED.
Features
l
Miniature transparent plastic package (4.5 × 5.5 mm)
l
Having following function at each terminal
· Operation and margin display terminal
· Synchronous/asynchronous switching terminal
· Output logic switching terminal
l
Built-in short-circuit protective circuit
l
S6841: High sensitivity (0.05 µW/mm
2
Typ.)
S8119: Large allowable background light level (10000 lx Typ.)
Applications
l
Optical switch
PHOTO IC
Photo IC for optical switch
Photo IC with optical switch functions
S6841, S8119
■ Absolute maximum ratings (Ta=25 °C)
Parameter S
y
mbol Value Unit
Supply voltage Vcc -0.3 to +7 V
Power dissipation *P250 mW
Output voltage Terminal ÁÃÄÉ Vout -0.3 to Vcc
Input voltage Terminal ÂÇÈ Vin -0.3 to +6 V
Operating temperature Topr -25 to +60 °C
Storage temperature Tstg -40 to +100 °C
Soldering - 230 °C , 3 s -
*1: Derate power dissipation at a rate of 3.3 mW/°C above Ta=25 °C
■ Electrical and optical characteristics (Ta=25 °C, Vcc=5 V, unless otherwise noted)
S6841 S8119
Parameter S
y
mbol Condition Min. T
yp
.Max. Min. T
yp
.Max. Unit
Spectral response range l-380 to
1120 --
380 to
1120 -nm
Peak sensitivity wavelength lp-820 - - 820 -nm
Supply voltage Vcc 4.5 5.0 5.5 4.5 5.0 5.5 V
Current consumption Icc OUT · LED terminals open -5.0 7.0 -5.0 7.0 mA
ON Ion SOUR CE, Vout=2.5
V60- -60- -µA
OU T term inal
output current OFF Iof SOURCE, Vout=0
V- -1.0- -1.0µA
Current (LED is on) Iledn SO URCE, Vled=2.5
V570 650 725 570 650 725 µA
Current (LED is off) Iledf SOURCE, Vled=0
V - - 10 - - 10 µA
Pulse cycle Tp1 112 160 208 112 160 208 µs
LED terminal output
Pulse width Tw1 *
3.5 56.5 3.5 56.5 µs
Pulse cycle Tp2 60 - 100 60 - 100 µs
Signal light
(in asynchronous mode) Pulse width Tw2 4 - 6 4 - 6 µs
DSP terminal output current Idsp SINK, Vdsp=1.0
V0.8 -1.6 0.8 -1.6 mA
Setup level M - 200 - - 200 - %
MRG term inal Output current Imrg SINK, Vmrg=1.0
V 2.0 - 3.6 2.0 - 3.6 mA
Input L current Iswl SOURCE, Vsw=0
V - - 100 - - 100 µA
In
p
ut H current Iswh SINK, Vsw=5
V - - 100 - - 100 µA
In
p
ut H volta
g
eVswh 2 - - 2 - - V
SW terminal
In
p
ut L volta
g
eVswl - - 0.8 - - 0.8 V
Input L current Iinvl SOURCE, Vinv=0
V - - 100 - - 100 µA
In
p
ut H current Iinvh SINK, Vinv=5
V - - 100 - - 100 µA
In
p
ut H volta
g
eVinvh 2 - - 2 - - V
INV terminal
In
p
ut L volta
g
eVinvl - -0.8- -0.8V
Threshold light level Eep No background light
l=850
nm -0.05 0.1 -0.1 0.2 µW/mm
Hysterisis Hys 0.7 0.8 0.9 0.7 0.8 0.9 -
Allowable background light level Ex *!3500 5000 -6000 10000 -lx
T
p
d1on *" Shield to input - - 1100 - 650 900 µs
S
y
nchronous T
p
d1of *" Input to shield - - 1100 - 650 900 µs
T
p
d2on Shield to input - - 1200 --
1000 µs
Propagation
delay time As
y
nchronous T
p
d2of Input to shield - - 1300 --
1300 µs
Input signal level Eepp *#- - 1 µW/mm
1
Photo IC for optical switch
S6841, S8119
*2: Pulse cycle, pulse width: See below.
*3: Allowable background light level
This is defined as the background light level on the active area at which the photo IC sensitivity* drops by 20 %.
* Sensitivity is the reciprocal of light level, which is constantly detected as a signal.
If background disturbance light strikes a part on the package (other than the active area) of S6841, this may lower the
allowable background light level. Use light-impervious tape to provide light-shielding over the shaded area of the package as
shown below. Light-shielding is unnecessary for S8119.
*4: H→L, L→H propagation delay time
The optical system is adjusted so that the Vo terminal output becomes “Low” voltage when the switch shown in the circuit
below is off. (S6841 is then measured with a signal light input of 1 µW/mm2 illuminance.)
*5: This is the input signal light level for the propagation delay time to stay within specifications.
If the input signal light exceeds this level, the propagation delay time may increase.
SWITCH
Vs
LED
LED
INV
SW
(OPEN)
(OPEN) GND
SENS
OUT Vo
0.33 µF
5 V
Vo OUTPUT
SWITCH
1.5 V
Tpd Tpd ON
OFF
Vcc
Measurement circuit
LIGHT-SHIELDED AREA
ACTIVE AREA
Light-shielded area (S6841)
KPICC0067EA
Tp
0 V
to 2.5 V
Tw
LED terminal output waveform
KPICC0060EA
Vcc
LED
0.33 µF5 V
3.8 k
GND
KPICC0061EA
Measurement circuit
KPICC0062EA
2
Photo IC for optical switch
S6841, S8119
Vcc
DSP
MRG
GND
Vcc
(100 k)
(50 k)
SW
INV
GND
Vcc
GND
LED
OPERATION DISPLAY TERMINAL
MARGIN DISPLAY TERMINAL
LED TERMINAL
DETECTION METHOD SWITCHING TERMINAL
OUTPUT SWITCHING TERMINAL
PD
PRE-AMPLIFIER
REF.
VOLTAGE
CONSTANT VOLTAGE
CIRCUIT
COMPARATOR
TO EACH CIRCUIT
COMPARATOR FOR
MARGIN DISPLAY
Vcc
1
OUT
2
SENS
OUTPUT
CIRCUIT
OPERATION
DISPLAY OUTPUT
CIRCUIT
MARGIN DISPLAY
OUTPUT CIRCUIT
LED DRIVER
SIGNAL PROCESSING
CIRCUIT
OUTPUT INVERTER
CIRCUIT
OUTPUT PROTECTIVE
CIRCUIT
OSCILLATION
CIRCUIT
TIMING
GENERATOR
3
DSP
4
MRG
5
LED
A. GND
6
D. GND
INV 7
8
SW 9
BUFFER
10
SIGNAL PROCESSING
CIRCUIT
■ Block diagram n Truth table
INV terminal: HIGH
Input OUT output DSP output MRG output
Light ON ON ON ON
Light OFF OFF OFF OFF
INV terminal: LOW
Input OUT output DSP output MRG output
Light ON OFF OFF ON
Light OFF ON ON OFF
SW
terminal
Detection
Method
High Synchronous
Low Asynchronous
KPICC0048EA
■ Terminal configuration
KPICC0063EA
3
HAMAMATSU PHOTONICS K.K., Solid State Division
1126-1 Ichino-cho, Higashi-ku, Hamamatsu City, 435-8558 Japan, Telephone: (81) 53-434-3311, Fax: (81) 53-434-5184, 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.: 19, 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. KPIC1019E02
Jul. 2001 DN
Photo IC for optical switch
S6841, S8119
4.6 ± 0.2
(INCLUDING BURR)
ACTIVE AREA
o
0.53
X
Y
1.5 ± 0.4 1.5 ± 0.4
4.5 *
2.0
1.0
5.5
5.4
*
5.6 ± 0.2
(INCLUDING BURR)
3˚
10˚
7.5 ± 0.3
0.7 ± 0.3 0.7 ± 0.3
0.25
0.1
3˚
5˚
0.75 ± 0.15
PHOTOSENSITIVE
SURFACE
0.4
5.4 *
0.89
Vcc
OUT (OUTPUT)
SENS
(SHORT-CIRCUIT PROTECTIVE INPUT FOR OUTPUT TERMINAL LOAD)
DSP (OPERATION DISPLAY)
MRG (MARGIN DISPLAY)
0.56
A. GND
D. GND
INV (OUTPUT LOGIC SWITCHING)
SW
(SYNCHRONOUS, ASYNCHRONOUS SWITCHING)
LED
Tolerance unless otherwise noted: ±0.1, ±2˚
Shaded area indicates burr.
Chip position accuracy
This chip is mounted with the following accuracy
with respect to the package dimensions marked *
X, Y ≤ ±0.2
■ OUT terminal and SENS terminal configurations and recommended external short-circuit protective circuit
KPICC0064EA
Vreg
Z1
TR1
R
POWER SUPPLY
0.7 V
GND
SENS
OUT
~
-
KPICA0020EB
■ Dimensional outline (unit: mm)
4
