ISL29028 Datasheet, PDF (12/15 Pages) Intersil Corporation – Low Power Ambient Light and Proximity Sensor with Intelligent Interrupt

ISL29028
Typical Performance Curves V_DD = 3.0V, R_EXT = 499kΩ (Continued)
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 ISL29028
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
240
220mA-MODE (PROX_DR = 1)
220
200
180
160
140
120
100
0
110mA-MODE (PROX_DR = 0)
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
V_IRDR (V)
FIGURE 12. IRDR PULSE AMPLITUDE vs V_IRDR
10
8
6
4
2
0
-2
-4
-6
-8
-10
-40
-20
0
20
40
60
80
TEMPERATURE (°C)
FIGURE 13. STABILITY OF ALS COUNT OVER TEMP (AT
300 LUX INCANDESCENT)
12
FN6780.1
March 2, 2010