GP2D12/GP2D15

Fig.1 Internal Block Diagram

Fig.2 Internal Block Diagram

s Electro-optical Characteristics

Parameter

Symbol

Conditions

MIN.

TYP.

MAX.

Unit

Distance measuring range

Output terminal voltage

Difference of output voltage

∆L

0.4

−

−

2.0

33

Vcc

−0.3

−

−

10

0.25

−

cm

mA

Distance characteristics of output

L

=80cm

Output voltage at High

Output voltage at Low

Output change at L

=80cm to 10cm

L

=80cm

0.55

−

0.6

80

V

V

Average Dissipation current

1.75

2.25

24

21

27

50

V

V

cm

(Ta

GP2D12

GP2D15

GP2D12

GP2D15

*1 Using reflective object : White paper (Made by Kodak Co. Ltd. gray cards R-27

⋅ white face, reflective ratio ; 90%).

*2 We ship the device after the following adjustment : Output switching distance L

=24cm±3cm must be measured by the sensor.

*3 Distance measuring range of the optical sensor system.

*4 Output switching has a hysteresis width. The distance specified by Vo should be the one with which the output L switches to the output H.

*1 *3

*1

*1

*1

*1

*4

*2

*1

*1

Note) L : Distance to reflective object.

Signal

processing

circuit

Voltage

regulator

Output

circuit

Oscillation

circuit

LED drive

circuit

Analog output

GND

PSD

LED

Distance measuring IC

GP2D12

Signal

processing

circuit

LED drive

circuit

Digital output

GND

PSD

LED

GP2D15

12k

Ω

Voltage

regulator

Output

circuit

Oscillation

circuit

Distance measuring IC

Fig.3 Timing Chart

5.0ms

7.6ms

38.3ms

±9.6ms

Distance

measuring

operation

First measurment

Second

measurment

nth

measurment

Unstable output

First output

Second output

nth output

(Power supply)

s Recommended Operating Conditions

Parameter

Symbol

Rating

Unit

4.5 to

+5.5

V

Operating supply voltage