GP2D12 Datasheet, PDF (2/4 Pages) Sharp Electrionic Components – General Purpose Type Distance Measuring Sensors

GP2D12/GP2D15
s Recommended Operating Conditions
Parameter
Symbol Rating Unit
Operating supply voltage
VCC 4.5 to +5.5 V
s Electro-optical Characteristics
Parameter
Distance measuring range
GP2D12
Output terminal voltage _GP2D15
Difference of output voltage GP2D12
Distance characteristics of output GP2D15
Average Dissipation current
Symbol
∆L
VO
VOH
VOL
∆VO
VO
ICC
Conditions
*1 *3
L=80cm ^*1
Output voltage at High ^*1
Output voltage at Low ^*1
Output change at L=80cm to 10cm ^*1
*1 *2 *4
L=80cm ^*1
MIN.
10
0.25
Vcc −0.3
−
1.75
21
−
TYP.
−
0.4
−
−
2.0
24
33
Note) L : Distance to reflective object.
*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.
(Ta=25°C, VCC=5V)
MAX. Unit
80
cm
0.55
V
−
V
0.6
V
2.25
V
27
cm
50
mA
Fig.1 Internal Block Diagram
GP2D12
GND
VCC 5V
PSD
LED
Signal
processing
circuit
LED drive
circuit
Voltage
regulator
Oscillation
circuit
Output
circuit
Distance measuring IC
V_o
Analog output
Fig.2 Internal Block Diagram
GP2D15
GND
VCC 5V
PSD
LED
Signal
processing
circuit
LED drive
circuit
Voltage
regulator
Oscillation
circuit
Output
circuit
Distance measuring IC
VCC
12kΩ
V_o
Digital output
Fig.3 Timing Chart
VCC
(Power supply)
Distance
measuring
operation
VO (Output)
38.3ms±9.6ms
First measurment
Unstable output
Second
measurment
nth
measurment
First output
Second output
5.0ms^MAX.(GP2D12)
7.6ms±1.9ms^TYP.(GP2D15)
nth output