Encoder module
P11159-01AS
Small package and high resolution encoder
module
The P11159-01AS is an optical encoder module that consists of a photo IC and red LED. The photo IC incorporates a 4-element
photodiode and a 2-phase digital signal output circuit. When using 0.2 mm pitch slits, the P11159-01AS produces a 2-phase digi-
tal signal output matching the slit movement.
Features
High resolution: 0.05 mm (2-phase output)
Positioning pin for easy alignment
Small package
Suitable for lead-free
fl
ow soldering
Applications
Rotary encoder
Linear encoder
Absolute maximum ratings (Ta=25 °C)
Parameter
Forward current*
1
Input
Reverse voltage
(LED)
Power dissipation
Supply voltage
Output voltage
Output
(photo IC) Output current
Power dissipation*
2
Operating temperature
Storage temperature
Soldering
Symbol
I
F
max.
V
R
max.
P
Vcc max.
Vo max.
Io max.
P
Topr
Tstg
Tsol
Value
25
5
100
-0.5 to +7
-0.5 to Vcc + 0.5
4
250
-40 to +85
-40 to +90
260 °C, 3 s Max., at least 1 mm away from case surface
Unit
mA
V
mW
V
V
mA
mW
°C
°C
-
*1:
Forward current decreases at a rate of 0.5 mA/°C above Ta=55 °C
*2:
Power dissipation decreases at a rate of 3.1 mW/°C above Ta=25 °C
Note: The P11159-01AS is not suitable for reflow soldering.
Electrical and optical characteristics (Ta=25 °C, Vcc=5 V, unless otherwise noted)
Input
(LED)
Output
(photo IC)
Parameter
Forward voltage
Reverse current
Peak emission wavelength
Operating supply voltage
Low level output voltage
High level output voltage
Supply current
Duty ratio*
3
Transfer
characteristics
Phase difference*
3
Rise time
Fall time
Maximum response frequency*
3
*
4
Symbol
V
F
I
R
λp
Vcc
V
OL
V
OH
Icc
t
AH
/t
AP
t
BH
/t
BP
θ
AB
tr
tf
f max.
Condition
I
F
=10 mA
V
R
=5 V
I
F
=10 mA
I
OL
=1 mA
V
OA
=V
OB
=L
I
F
=5 mA, f=10 kHz
I
F
=5
I
F
=5
I
F
=5
I
F
=5
mA, f=10 kHz
mA, C
L
=10 pF
mA, C
L
=10 pF
mA
Min.
-
-
-
3.0
-
4.5
-
35
35
60
-
-
50
Typ.
1.9
-
650
-
-
-
6.0
50
50
90
0.5
0.04
-
Max.
2.4
10
-
7.0
0.4
-
10
65
65
120
2
0.3
-
Unit
V
μA
nm
V
V
V
mA
%
%
degree
μs
μs
kHz
*3:
Measured when recommended slits are used in specified position
Response frequency f is the reciprocal of the time required to move one pitch.
*4:
Maximum frequency at which no error occurs in the output transition sequence (See operation timing diagram.)
Note: Connect a capacitor of 0.1
μF
or more between Vcc and GND terminal.
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