I need some help figureing out this data-sheet:http://www.fairchildsemi.com/ds/QR/QRE1113.GR.pdf
The component I am interested in is a sensor generally used for line-tracking. It has an IR led and a photodiode. The photodiode measures the amount of reflected IR light, giving information on reflectence / or distance of objects.
I want to build a small array of them, similar to this sensor-array by pololu http://www.pololu.com/catalog/product/960/pictures
I cannot figure out the voltage and current consumption of the LEDs. I have no experience with reading datasheets, I am sure its in there somewhere, but I just cant figure it out.
If someone could take a look at it for me and tell me what the current & voltage rating of the LED in the sensor is, that would be really helpfull. (I would also apreceate if someone told me *how* to find this information.
The closest I can find to current & voltage are from the absolute Maximum Ratings:
Continuous Forward Current - 50mA
Reverse Voltage - 5V
however, I am quite sure that these are not the values I am interested in.
I would really apreceate some help
edit: here are two schematics of breakout boards for this sensor. I guess it might be possible to reverse engeneer the information I am interested in from them:http://www.sparkfun.com/datasheets/Robotics/QRE1113-Analog-Breakout-v11.pdfhttp://www.pololu.com/picture/view/0J614
However, the sparkfun breakoutboard tends to get fairly warm - maybe its becouse of something else which is dodgy in my prototype - but still, I would rather figure out the actual specs, before reverse engeneering something...