ISL29101_14 Datasheet, PDF (3/7 Pages) Intersil Corporation – Small, Low Power, Voltage-Output Ambient Light Photo Detect IC

ISL29101
POWER SUPPLY
OR
SOURCE METER
V_DD
FUNCTION
GENERATOR
ISL29101
V_OUT
R_EXT
FIGURE 1. TEST CIRCUIT FOR RISE/FALL TIME
MEASUREMENT
Typical Performance Curves
1.2
HUMAN EYE RESPONSE
1.0
0.8
0.6
LIGHT SENSOR RESPONSE
0.4
0.2
0.0
-0.2
300 400
600
800
1.0k 1.1k
WAVELENGTH (nm)
FIGURE 3. SPECTRAL RESPONSE
INPUT
LIGHT
10% 90%
t_r
t_S
OUTPUT
90%
t_f%
10%
t_D
FIGURE 2. TIMING DIAGRAM
1.2
FLUORESCENT
1.0
INCANDESCENT
0.8
SUN
0.6
HALOGEN
0.4
WLED
0.2
0
300 400 500 600 700 800 900 1000 1100
WAVELENGTH (nm)
FIGURE 4. SPECTRUM OF LIGHT SOURCES
RADIATION PATTERN
LUMINOSITY
20° ^{10° 0°}
30°
ANGLE _40°
50°
60°
10° _20°
30°
40°
50°
60°
70°
70°
80°
80°
90°
90°
0.2 0.4 0.6 0.8 1.0
RELATIVE SENSITIVITY
FIGURE 5. RADIATION PATTERN
2.0 _{VDD = 3V}
1.8 _{REXT = 10kΩ}
1.6
1.4
1.2
HALOGEN
1.0
0.8 ^INCANDESCENT
0.6
FLUORESCENT
0.4
0.2
0
0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000
LIGHT INTENSITY (LUX)
FIGURE 6. OUTPUT VOLTAGE vs LIGHT SENSITIVITY
3
FN6510.1
November 5, 2012