GP2U05 Datasheet, PDF (2/2 Pages) Sharp Electrionic Components – Particulate Detectable High Sensitivity Type Dust Sensor

s Internal Block Diagram
Detection window
Dust
Emitter
circuit
Detector
circuit
Drive
circuit
Amp.
circuit
Peak hold
circuit
Amp.
circuit
Sensitivity adjustment
5 Vcc
4 LED drive terminal
3 _{Signal GND}
2 ^{Output terminal (Vo)}
1 Frame GND
(Note) Signal GND : GND of circuit system
Frame GND : Connect to the case (conductive resin).
The signal GND is not connected to the frame GND in the case
GP2U05
Fig. 1 Output Voltage vs. Dust Concentration
12
10
8
6
4
Conditions :
Per Electro-optical
2
Characteristics
0
0.2
0.4
0.6
0.8
1.0
Dust concentration (mg/m³ )
Fig. 3 Output Voltage vs. Ambient Temperature
Fig. 2 Output Voltage vs. Supply Voltage
4.5
4
3.5
3
State with reflective object inserted from
sensor outside and output voltage set to
2.5
Vo=3.5V (at Vcc=12V)(equivalent to
dust concentration of about 0.24 mg/m³)
1.5
1
No-dust state
0.5
10 11 12 13 14 15
Supply voltage Vcc (V)
3.5
3
State with reflective object inserted from
2.5
sensor outside and output voltage set to
Vo=3.6V (at Ta=25˚C)(equivalent to
dust concentration of about 0.22 mg/m³)
1.5
1
No-dust state
0.5
- 10 0 10 20 30 40 50 60
Ambient temperature Ta (˚C )