ALS-PT243-3C Datasheet, PDF (6/11 Pages) Everlight Electronics Co., Ltd – 5mm DIP Ambient Light Sensor

5mm DIP
Ambient Light Sensor
Converting Photocurrent to Voltage
Vcc
ALS-PT243-3C/L177
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-024-007 Rev1.1
6
http:\\www.everlight.com
Dec.31, 2007