GP2D02
GP2D02
Compact, High Sensitive Distance
Measuring Sensor
Features
1. Impervious to color and reflectivity of reflective object
2. High precision distance measurement output for direct
connection to microcomputer
3. Low dissipation current at OFF-state
(dissipation current at OFF-state : TYP. 3 µA)
4. Capable of changing of distance measuring range
through change the optical portion (lens)
■
Applications
1. Sanitary sensors
2. Human body sensors for consumer products such as
electric fans and air conditioners
3. Garage sensors
* PSD : Position Sensitive Detector
■■
Outline Dimensions
2
-
Emitting portion
φ 3.2
±
0.15
R4
-
2
± 0.2
❈ 4.5
4
2 - 1.5
JAPAN SOLDERLESS
TERMINAL MSG. CO.
made connector (S4B-ZR)
Block Diagram
Light detector (PSD*)
IR LED
Reflective object
❈ 20
14
Signal processing
LED drive circuit
(Unit : mm)
Detecting portion
12
2 - 8
± 0.2
29
37
2.7
14.4
2 - 15.4
2 - 1
The dimensions marked with ❈ are described
as the dimensions of lens center position.
1 : GND
Reg
circuit
V
CC
MAX.0.8
14
1 : GND
2 : Vin
3 : V
4 : V
3 : V
CC
V
CC
V
CC
4
Control circuit
2
CC
out
12kΩ
: V
: Vin
(Control
signal
input)
out
■
Absolute Maximum Ratings
(Ta=25˚C, V =5V)
CC
Parameter Symbol Rating Unit
Supply voltage
*1
Input terminal voltage
Output terminal voltage
Operating temperature
Storage temperature
*1 Open drain operation input
■
Operating Supply Voltage
VCC- 0.3 to + 10
- 0.3 to + 3
V
in
- 0.3 to + 10
BV
O
-10to+60
T
opr
-40to+70
T
stg
V
V
V
˚C
˚C
Symbol Rating Unit
V
CC
“ In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that occur in equipment using any of SHARP's devices, shown in catalogs,
data books, etc. Contact SHARP in order to obtain the latest version of the device specification sheets before using any SHARP's device.”
4.4 to 7 V
Electro-optical Characteristics
■
Parameter Symbol Conditions MIN. TYP. MAX. Unit
Distance measuring range ∆ L
Output terminal voltage
Distance characteristics of output
Dissipation current
at operating I
at OFF-state I
Vin terminal current I
Note) L : Distance to reflective object
DEC : Decimalized value of sensor output (8-bit serial)
*1 Reflective object : White paper (reflectivity : 90%)
*2 Average dissipation current value during distance measuring operation when detecting of input signal, Vin as shown in the timing chart
*3 Vin terminal : Open drain drive input.
Conditions : Vin terminal current at Vin OFF-state : -1µ A
Vin terminal current at Vin ON-state : 0.3V
Test Circuit
■
*1
Output voltage at High L= 20cm*1VCC- 0.3 - - V
V
OH
Output voltage at Low - - 0.3 V
V
OL
D L= 80cm,
Output change at L=80 cm to 20 cm, *148 58 68 DEC
∆ D
L= 20cm,
CC
L= 20cm,
off
Vin= 0V - - 170 - 280 µ A
vin
*1
*1, *2
*1
1. Test circuit
3
GP2D02
(Ta=25˚C,Vcc=5V)
10 - 80 cm
- 75 - DEC
-2235mA
-38µA
2. Vin input signal for measurement
Distance measuring sensor
1
0.1ms 0.1ms
70ms
4
2
1.6ms
8-bit serial output read
V signal input
in
2ms
Timing Chart
■
GP2D02
Vin
Output
70ms or more
Example of distance measuring output (8-bit)
0.2ms or less
MSB LSB LSB
1ms or more
1.5ms or more
1.5ms or more
Power OFF
Fig. 1 Distance Measuring Output vs.
Distance to Reflective Object
220
200
180
160
140
120
100
80
60
40
Distance measuring output (DEC)
20
0
0 20 40 60 80 100 120 140
White paper : KODAK made gray chart R-27,
white surface (reflectivity : 90%)
Gray paper : KODAK made gray chart R-27,
gray surface (reflectivity : 18%)
White
Gray
Distance to reflective object L (cm)
GP2D02
Fig. 2 Detection Distance vs. Sensing Range
100
90
80
70
60
50
40
30
Detection distance L (cm)
20
10
0
- 100 - 50 0 50 100
Sensing distance : 50 cm
Sensing distance : 80 cm
Sensing distance : 20 cm
Sensing range X (mm)
Fig. 3 Detection Distance vs. Illuminance
100
90
80
70
60
50
40
30
Detection distance L (cm)
20
10
0
0 5000 10000 15000 20000 25000 30000
50cm
30cm
15cm
Illuminance (lx)
Test Method for Sensing Range Characteristics
- X + X
Reflective object
White paper
(reflectivity : 90%)
Detecting portion
Emitting portion
Sensor
Sensing distance
Test Method for Anti External Disturbing
Light Characteristics
Distance to reflective object
Reflective object
KODAK made white paper
(reflectivity : 90%)
Illuminance meter
Sensor
Sunlight
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