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Transmissive Photosensors (Photo Interrupters)
ON1109
Photo Interrupter
Unit : mm
For contactless SW, object detection Outline
ON1109 is a photocoupler in which a high efficiency GaAs infrared light emitting diode is used as the light emitting element, and a high sensitivity phototransistor is used as the light detecting element. The two elements are arranged so as to face each other, and objects passing between them are detected.
Mark for indicating LED side o1.5 2-C2.00.3
28.00.35 17.00.3 5.00.2 A
Device center 1.00.2
13.00.2
2-0.450.2
4.0 min. 3.00.2
A' (12.0) 2 22.40.2
Features
Highly precise position detection : 0.7 mm Fast response : tr, tf = 6 s (typ.) Small output current variation against change in temperature Deep and wide gap between emitting and detecting elements
7.00.2
3 2-o3.20.2 2 3
1
4
(Note) (
) Dimension is reference
Absolute Maximum Ratings (Ta = 25C)
Parameter Reverse voltage (DC) Input (Light Forward current (DC) emitting diode) Power dissipation Collector current Symbol Ratings VR IF PD*1 IC 3 50 75 20 30 5 100 Unit V mA mW mA V V
*1
Output (Photo Collector to emitter voltage VCEO transistor) Emitter to collector voltage VECO Collector power dissipation Temperature Operating ambient temperature Storage temperature PC*2
mW C C
Topr -25 to +85 Tstg -30 to +100
Input power derating ratio is 1.0 mW/C at Ta 25C. *2 Output power derating ratio is 1.34 mW/C at Ta 25C.
Electrical Characteristics (Ta = 25C)
Parameter Input characteristics Reverse current (DC) Forward voltage (DC) Collector cutoff current Symbol VF IR ICEO CC VR = 3V VCE = 10V VCE = 10V, f = 1MHz 0.3 6 0.3 5 Conditions IF = 50mA min typ 1.2 max 1.5 10 200 Unit V A nA pF mA s V
Output characteristics Collector to emitter capacitance
Collector current IC VCE = 10V, IF = 20mA Transfer Response time tr , tf* VCC = 10V, IC = 1mA, RL = 100 characteristics Collector to emitter saturation voltage VCE(sat) IF = 50mA, IC = 0.1mA
*
Switching time measurement circuit
Sig.IN VCC (Input pulse) Sig.OUT (Output pulse) 90% 10% td tr tf td : Delay time tr : Rise time (Time required for the collector current to increase from 10% to 90% of its final value) tf : Fall time (Time required for the collector current to decrease from 90% to 10% of its initial value)
,,
,,
50
RL
, ,,,
1 Pin connection
3.00.3 2.00.2
(2.54)
SEC. A-A'
4
1
Transmissive Photosensors (Photo Interrupters)
ON1109
IF , IC -- Ta
60 60
IF -- VF
10 2 Ta = 25C
IC -- IF
VCE = 10V Ta = 25C
IF , IC (mA)
50
IF
50
IC (mA) Collector current
Forward current, collector current
40
IF (mA)
10
40
Forward current
30 IC
30
1
20
20
10 -1
10
10
0 - 25
0
20
40
60
80
100
0
0
0.4
0.8
1.2
1.6
2.0
2.4
10 -2 10 -1
1
10
10 2
Ambient temperature Ta (C )
Forward voltage VF (V)
Forward current IF (mA)
VF -- Ta
1.6 10 2
IC -- VCE
160 Ta = 25C
IC -- Ta
VCE = 10V IF = 20mA
IC (mA)
VF (V)
1.2
IF = 50mA
10 IF = 30mA 20mA 1 10mA
IC (%) Relative output current
10 2
120
Forward voltage
0.8
Collector current
10mA
80
0.4
10 -1
40
0 - 40 - 20
0
20
40
60
80
100
10 -2 10 -1
1
10
0 - 40 - 20
0
20
40
60
80
100
Ambient temperature Ta (C )
Collector to emitter voltage VCE (V)
Ambient temperature Ta (C )
ICEO -- Ta
10 10 3
tr -- IC
VCC = 10V Ta = 25C 100
IC -- d
VCE = 10V Ta = 25C IF = 20mA
1
IC (%)
80 Criterion 0 60 d
ICEO (A)
10 2
tr (s)
10 -1
RL = 1k 10 500 100
10 -2
VCE = 24V
10V
Relative output current
Dark current
Rise time
40
1 10 -3
Sig.IN
VCC Sig. V1 OUT V2 V2 RL 90% 10%
20
10 -4 - 40 - 20
, ,,
10 -1 10 -2 10 -1 1
V1 50
tr
td
tf
10 0 0 1 2 3 4 5 6
0
20
40
60
80
100
Ambient temperature Ta (C )
Collector current IC (mA)
Distance d (mm)
2

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