ISL29033IROZ-T7 Datasheet, PDF (12/15 Pages) Intersil Corporation – Ultra-Low Lux, Low Power, Integrated Digital Ambient Light Sensor with Interrupt Function

ISL29033
Typical Performance Curves V_DD = 3.0V, R_EXT = 499kΩ
1.0
0.9
FLUORESCENT
0.8
0.7
0.6
HALOGEN
0.5
0.4
SUN
INCANDESCENT
0.3
0.2
0.1
0
350
550
750
950
WAVELENGTH (nm)
FIGURE 7. SPECTRUM OF FOUR LIGHT SOURCES NORMALIZED
BY LUMINOUS INTENSITY (LUX)
1.0
0.9
0.8 _ALS
0.7
HUMAN EYE
IR SENSING
0.6
0.5
0.4
0.3
0.2
0.1
0.0
300 400 500 600 700 800 900 1000 1100
WAVELENGTH (nm)
FIGURE 8. NORMALIZED SPECTRAL RESPONSE FOR AMBIENT
LIGHT SENSING
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
-90 -75 -60 -45 -30 -15 0 15 30 45 60 75 90
ANGULAR OFFSET (°)
FIGURE 9. ANGULAR SENSITIVITY
5
4
3
2
MAX
1
0
-1
-2
MIN
-3
-4
-5
0
20
40
60
80
100
120
LUX METER (LUX)
FIGURE 10. LINEARITY OVER RANGE 1
20
18
16
14
12
500kΩ
10
8
6
4
2
0
0
0.005
0.01
0.015
0.02
LUX METER (LUX)
FIGURE 11. LOW LUX AT GREEN LED (500kΩ)
70000
60000
FLUORESCENT LIGHT
50000
40000
30000
20000
HALOGEN
INCANDESCENT LIGHT
10000
0
0 10 20 30 40 50 60 70 80 90 100
LUX READING (LUX)
FIGURE 12. LIGHT SOURCES AT RANGE 1, 500kΩ R_EXT
12
FN7656.2
February 25, 2013