TLP841

2007-10-01

6

Relative Positioning of Shutter and Device

For normal operation, position the shutter and the device as shown in the figure below. By considering the

device's detection direction characteristic and switching time, determine the shutter slit width and pitch.

0

0.2

0.4

0.6

0.8

1

1.2

23

45

67

89

0

0.2

0.4

0.6

0.8

1

1.2

-3

-2

-1

0

1

2

3

4

Detection position

characteristics (1)

(typ.)

Distance d (mm)

IF = 10 mA

VCE = 2 V

Ta

= 25°C

Detection position

d

= 0 ± 0.3 mm

0

+

−

d

Shutter

Distance d (mm)

Detection position

characteristics (2)

(typ.)

IF = 10 mA

VCE = 2 V

Ta

= 25°C

Detection position

d

= 5.1

mm

d

Shutter

+ 0.6

− 0.95

A

A’

Shutter

Center of sensor

Unit: mm

Cross section between A and A'