ALS-PDIC17-77C-TR8_15 Datasheet, PDF (7/12 Pages) Everlight Electronics Co., Ltd – Ambient Light Sensor

DATASHEET
Ambient Light Sensor - Surface Mount
ALS-PDIC17-77C/TR8
Fig.11 Consumption current vs. Illuminance
Fig.12 Relative consumption current vs. Temperature
Converting Photocurrent to Voltage
Vcc
Current
Amp
Iph
Vout
RL CL
GND
Note:
1. The output voltage (Vout) is the product of photocurrent (IPH) and loading resistor (RL)
2. A right loading resistor shall be chosen to meet the requirement of maximum ambient light,
and output saturation voltage:
Vout(max.) = Iout(max.) × RL Ù Vout(saturation)ØVccÑ0.8V
3. To avoid 60Hz ripple from fluorescent lamps, we suggest that the time constant must be
greater than 0.5 second:
RL × CL Ú 0.5 (empirical data)
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