ALS-PT19-315C Datasheet, PDF (6/11 Pages) Everlight Electronics Co., Ltd – Surface - Mount Ambient Light Sensor

Surface - Mount
Ambient Light Sensor
ALS-PT19-315C/L177/TR8
Converting Photocurrent to Voltage
Vcc
Light
Source
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 Vout(saturation) Vcc 0.4V
Everlight Electronics Co., Ltd.
Document No: DAS-019-002 Rev2.0
6
http:\\www.everlight.com
Jan. 25, 2008