ISL29030_14 Datasheet, PDF (13/17 Pages) Intersil Corporation – Low Power Ambient Light and Proximity Sensor with Intelligent Interrupt and Sleep Modes - Analog and Digita Out

ISL29030
Typical Performance Curves V_DD = 3.0V, R_EXT = 499kΩ
1.0
1.0
0.9
FLUORESCENT
0.9
0.8
0.8 _ALS
0.7
0.7
0.6
0.6
0.5
HALOGEN
INCAND.
0.5
0.4
SUN
0.4
0.3
0.3
0.2
0.2
0.1
0.1
0
350
550
750
950
0.0
300 400
WAVELENGTH (nm)
HUMAN EYE
IR/PROX
500 600 700 800 900 1000 1100
WAVELENGTH (nm)
FIGURE 6. SPECTRUM OF FOUR LIGHT SOURCES NORMALIZED
BY LUMINOUS INTENSITY (LUX)
FIGURE 7. ISL29030 SENSITIVITY TO DIFFERENT WAVELENGTHS
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0-90
-60
-30
0
30
60
90
ANGULAR OFFSET (°)
FIGURE 8. ANGULAR SENSITIVITY
2500
2000
HALOGEN
1500
1000
500
FLUORESCENT
INCANDESCENT
0
0
1000
2000
3000
4000
5000
ALS CODE (12-BIT)
FIGURE 9. ALS LINEARITY OVER 3 LIGHT SOURCES (2000 LUX
RANGE)
300
18% GREY CARD
250
220mA MODE
200
110mA MODE
150
100
WHITE COPY PAPER
50
0
0 20 40 60 80 100 120 140 160 180 200
DISTANCE (mm)
FIGURE 10. PROX COUNTS vs DISTANCE WITH 10CM x 10CM
REFLECTOR (USING ISL29030 EVALUATION BOARD)
160
ALS+PROX (DURING PROX SLEEP)
140
ALS-ONLY
120
100
80
60
PROX (DURING PROX SLEEP)
40
2.25 2.40 2.55 2.70 2.85 3.00 3.15 3.30 3.45 3.60
INPUT V_DD (V)
FIGURE 11. V_DD vs I_DD FOR VARIOUS MODES OF OPERATION (I_ALS
PIN FLOATING)
13
FN6872.1
November 12, 2012