Encoder module

www.hamamatsu.com

Small package and high resolution encoder

module

P11159-01AS

1

Features

Applications

Rotary encoder

Linear encoder

High resolution: 0.05 mm (2-phase output)

Suitable for lead-free flow soldering

Positioning pin for easy alignment

Small package

Absolute maximum ratings (Ta=25 °C)

Electrical and optical characteristics (Ta=25 °C, Vcc=5 V, unless otherwise noted)

Parameter

Symbol

Value

Unit

Input

(LED)

25

mA

Reverse voltage

5

V

Power dissipation

P

100

mW

Output

(photo IC)

Supply voltage

Vcc max.

-0.5 to +7

V

Output voltage

Vo max.

-0.5 to Vcc + 0.5

V

Output current

Io max.

4

mA

P

250

mW

Operating temperature

Topr

-40 to +85

°C

Storage temperature

Tstg

-40 to +90

°C

Soldering

Tsol

260 °C, 3 s Max., at least 1 mm away from case surface

-

*

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.

Parameter

Symbol

Condition

Min.

Typ.

Max.

Unit

Input

(LED)

Forward voltage

-

1.9

2.4

V

Reverse current

-

-

10

μA

Peak emission wavelength

λp

-

650

-

nm

Output

(photo IC)

Operating supply voltage

Vcc

3.0

-

7.0

V

Low level output voltage

-

-

0.4

V

High level output voltage

4.5

-

-

V

Supply current

Icc

-

6.0

10

mA

Transfer

characteristics

35

50

65

%

35

50

65

%

60

90

120

degree

Rise time

tr

-

0.5

2

μs

Fall time

tf

-

0.04

0.3

μs

f max.

50

-

-

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.

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.