Datasheet

LifecyclePhase:
Revision : 1
Expired Period: Forever
Release Date:2011-08-30 13:40:46.0
Everlight Electronics Co., Ltd. http:\\www.everlight.com
Document No: DLS-0000001 Rev1 Sep. 19, 2007
6
Surface - Mount
Ambient Light Sensor
ALS-PT17-51C/L177/TR8
RL
GND
Vout
Vcc
CL
Iph
Light
Source
Converting Photocurrent to Voltage
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