ISL29023_14 Datasheet, PDF (4/14 Pages) Intersil Corporation – Integrated Digital Light Sensor with Interrupt

ISL29023
Typical Performance Curves
1.2
1.0
SUN
0.8
HALOGEN
0.6
INCANDESCENT
0.4
FLUORESCENT
0.2
0
300 400 500 600 700 800 900 1000 1100
WAVELENGTH (nm)
1.2
HUMAN EYE
1.0
0.8
0.6
0.4
IR SENSING
0.2
0
AMBIENT LIGHT SENSING
-0.2
300 400 500 600 700 800 900
WAVELENGTH (nm)
1000 1100
FIGURE 3. NORMALIZED SPECTRAL RESPONSE OF LIGHT SOURCES
FIGURE 4. NORMALIZED SPECTRAL RESPONSE FOR AMBIENT
LIGHT SENSING AND IR SENSING
RADIATION PATTERN
LUMINOSITY
20° ^{10° 0°}
10°
20°
30°
ANGLE _40°
30°
40°
50°
50°
60°
60°
70°
70°
80°
80°
90°
90°
0.2 0.4 0.6 0.8 1.0
RELATIVE SENSITIVITY
FIGURE 5. RADIATION PATTERN
1000
900
800
700
ALS SENSING
RANGE 1 (1k Lux)
16-BIT ADC
NO COVER GLASS
INCANDESCENT
65535
600
HALOGEN
500
32768
400
FLUORESCENT
300
200
1000 LUX
100
E_cal = ₂₁₆
x DATA
0
0
0 100 200 300 400 500 600 700 800 900 1000
LUX METER READING (LUX)
FIGURE 6. SENSITIVITY TO THREE LIGHT SOURCES
10
8
6
4
2
0
-60
-20
20
60
100
TEMPERATURE (°C)
FIGURE 7. OUTPUT CODE FOR 0 LUX vs TEMPERATURE
1.10
300 Lux FLUORESCENT LIGHT
ALS SENSING
1.05 ^{RANGE 1 (1k Lux)}
1.00
0.95
0.90
-60
-20
20
60
100
TEMPERATURE (°C)
FIGURE 8. OUTPUT CODE vs TEMPERATURE
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4
FN6691.4
May 1, 2014