isl29028a Intersil Corporation, isl29028a Datasheet - Page 12

• Manufacturer Part Number: isl29028a
• Description: Low Power Ambient Light And Proximity Sensor With Intelligent Interrupt And Sleep Modes
• Manufacturer: Intersil Corporation

Typical Performance Curves
FIGURE 10. PROX COUNTS vs DISTANCE WITH 10CM x 10CM
FIGURE 6. SPECTRUM OF FOUR LIGHT SOURCES NORMALIZED
300
250
200
150
100
50
0
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
-90
0
350
20
BY LUMINOUS INTENSITY (LUX)
REFLECTOR (USING ISL29028 EVALUATION BOARD)
FIGURE 8. ANGULAR SENSITIVITY
-60
40
60
550
-30
ANGULAR OFFSET (°)
WAVELENGTH (nm)
18% GREY CARD
DISTANCE (mm)
80
12
220mA MODE
100
110mA MODE
SUN
0
WHITE COPY PAPER
FLUORESCENT
120
HALOGEN
750
30
140
160
INCAND.
60
180
950
V
ISL29028A
DD
90
200
= 3.0V, R
EXT
FIGURE 11. V
FIGURE 7. ISL29028A SENSITIVITY TO DIFFERENT
FIGURE 9. ALS LINEARITY OVER 3 LIGHT SOURCES (2000 LUX
= 499k
2500
2000
1500
1000
500
160
140
120
100
80
60
40
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0
2.25
300
0
Ω
ALS
ALS+PROX (DURING PROX SLEEP)
2.40
WAVELENGTHS
RANGE)
400
DD
1000
vs I
2.55
500
DD
ALS-ONLY
FOR VARIOUS MODES OF OPERATION
2.70
WAVELENGTH (nm)
ALS CODE (12-BIT)
600
2000
HUMAN EYE
HALOGEN
INPUT V
2.85
700
PROX (DURING PROX SLEEP)
DD
3.00
INCANDESCENT
3000
800
(V)
3.15
900
FLUORESCENT
3.30
4000
IR/PROX
1000
March 24, 2011
3.45
FN7721.2
1100
3.60
5000