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everlight electronics co., ltd. http://www.everlight.com document no: dls-0000012 rev 1 ma r. 30, 2009 1 surface - mount ambient light sensor als-pdic17-55c/tr8 features ? close responsively to the human eye spectrum ? light to current, analog output ? good output linearity across wide illumination rang e ? low sensitivity variation across various light sour ces ? operating temperature performance, -40 o c to 85 o c ? wide supply voltage range, 1.8v to 5.5v ? size : 2.0mm(l)*1.25mm(w)*0.8mm(h) ? rohs compliant and pb free package description the als-pdic17-55c/tr8 is consisting of a photodiod e and a current amplification ic. everlight als series product is a good effective so lution to the power saving of display backlighting of mobile appliances, such as the mobi le phones, nb and pdas. due to the high rejection ratio of infrared radiation, the spectral response of the ambient light sensor is close to that of human eyes. applications ? detection of ambient light to control display backl ighting mobile devices C mobile phones, pdas computing device C tft lcd monitor for notebook c omputer consumer device C tft lcd tv, plasma tv, video ca mera, digital camera, toys ? automatic residential and commercial management ? automatic contrast enhancement for electronic signb oard ? ambient light monitoring device for daylight and ar tificial light C street light, ccd/cctv
everlight electronics co., ltd. http://www.everlight.com document no: dls-0000012 rev 1 ma r. 30, 2009 2 surface - mount ambient light sensor als-pdic17-55c/tr8 package dimensions unit: mm
everlight electronics co., ltd. http://www.everlight.com document no: dls-0000012 rev 1 ma r. 30, 2009 3 surface - mount ambient light sensor als-pdic17-55c/tr8 absolute maximum ratings ( ta=25c ) parameter symbol rating unit supply voltage v cc -0.5~6.0 v output voltage v o 0 ~ vcc-0.8 v output photo current i ph 0 ~ 5 ma operating temperature range t opr -40 ~ +85 c storage temperature range t stg -40 ~ +100 c soldering temperature range [note1] t sol 260 c note1: for detail reflow time and the recommended temperat ure profile, please refer to page 8. recommended operating conditions ( ta=25 c ) parameter symbol min. max. unit operating temperature t opr -40 +85 c supply voltage v cc 1.8 5.5 v electrostatic discharge, hbm esd 8 --- kv
everlight electronics co., ltd. http://www.everlight.com document no: dls-0000012 rev 1 ma r. 30, 2009 4 surface - mount ambient light sensor als-pdic17-55c/tr8 electrical and optical characteristics ( ta=25 c ) parameter symbol min. typ. max. unit test condition supply current i cc 1.2 * i ph a dark current i d 100 na v cc =3v or 5.5v; e v = 0lux voltage output offset vof 1 mv v cc =3v, r=10 k, e v = 0lux [note1] i ph1 6 a v cc =3v; e v =10lux [note2] [fig.2] i ph2 60 a v cc =3v; e v = 100lux [note2] [fig.2] i ph3 60 a v cc =3v; e v = 100lux [note3] [fig.2] light current i ph4 600 a v cc =3v; e v =1000lux [note2] [fig.2] photocurrent ratio i ph3 / i ph2 1 saturation output voltage v o 2.20 2.35 v v cc =3v; e v = 100lx, r l =150k ? [fig.3] peak sensitivity wavelength p 590 nm sensitivity wavelength range 390 --- 700 nm rise time t r 6.17 ms fall time t f 9.51 ms delay time t d 1.8 ms switching time storage time t s 1.2 ms v cc =3v,r l =27k c l = 0.1 uf [fig.4] note: 1. max voltage output offset based on different res istor. 2. white fluorescent light (color temperature = 650 0k) is used as light source. however, white led is substituted in mass production. 3. illuminance by cie standard illuminant-a / 2856k , incandescent lamp.
everlight electronics co., ltd. http://www.everlight.com document no: dls-0000012 rev 1 ma r. 30, 2009 5 surface - mount ambient light sensor als-pdic17-55c/tr8 pdic15-21c fig.1 block diagram fig.2 measurement method of light current fig.3 measurement method of saturation output voltage als-001 light source gnd vout i l vcc i cc als-001 light source gnd vout vcc r l fig.4 switching time measurement method as-3021 pdic17-55c pdic17-55c 2. v cc 1. v out 3. gnd 4. gnd 2. vcc 1. vout 3. gnd 4. gnd current amp pdic17-55c
everlight electronics co., ltd. http://www.everlight.com document no: dls-0000012 rev 1 ma r. 30, 2009 6 surface - mount ambient light sensor als-pdic17-55c/tr8 1 10 100 1000 0.01 0.1 1 10 100 1000 incandescent light fluorescent light light current (ua) illuminance (lux) typical electrical and optical characteristics curv es fig.5 light current vs. illuminance fig.6 dark curre nt vs. temperature fig.7 light current vs. temperature fig.8 light curren t vs. supply voltage -60 -40 -20 0 20 40 60 80 100 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 v ce = 3v e v = 100 lux relative light current temperature ( ) fig.9 spectral response fig.10 output voltage vs. tempe rature -60 -40 -20 0 20 40 60 80 100 0.1 1 10 100 r l = 7.5k e v = 1000 lux output voltage (v) temperature ( )
everlight electronics co., ltd. http://www.everlight.com document no: dls-0000012 rev 1 ma r. 30, 2009 7 surface - mount ambient light sensor als-pdic17-55c/tr8 fig.11 supply current vs. illuminance fig.12 output vo ltage vs. illuminance 0.1 1 10 100 1000 10000 0.01 0.1 1 10 100 1000 10000 v cc = 3v t a = 25 supply current (ua) illuminance (lux) 1 10 100 1000 10000 1e-4 1e-3 0.01 0.1 1 10 fluorence light r l = 10 k t a = 25 vcc = 3v fluorence light r l = 75 k fluorence light r l = 27 k fluorence light r l = 7.5 k fluorence light r l = 1 k output voltage (v) illuminance (lux)
everlight electronics co., ltd. http://www.everlight.com document no: dls-0000012 rev 1 ma r. 30, 2009 8 surface - mount ambient light sensor als-pdic17-55c/tr8 r l gnd vout vcc amp current c l i ph converting photocurrent to voltage note: 1. the output voltage (v out ) is the product of photocurrent (i ph ) and loading resistor (r l ) 2. a right loading resistor shall be chosen to meet the requirement of maximum ambient light, and output saturation voltage: v out (max.) = i out (max.) r l Q v out (saturation) v cc 0.8v 3. to avoid 60hz ripple from fluorescent lamps, we suggest that the time constant must be greater than 0.5 second: r l c l R 0.5 (empirical data)
everlight electronics co., ltd. http://www.everlight.com document no: dls-0000012 rev 1 ma r. 30, 2009 9 surface - mount ambient light sensor als-pdic17-55c/tr8 recommended method of storage reflow terms: jedec level 4 specification dry box storage is recommended as soon as the alumi num bag has been opened prevent moisture absorption. the following conditions shoul d be observed, if dry boxes are not available: storage temperature 10 to 30 storage humidity Q 60%rh max after more than 72 hours under these conditions moi sture content will be too high for reflow soldering. in case of moisture absorption, t he devices will recover to former condition by drying under the following condition: 192 hours at 40 +5 /-0 and 5%rh (dry air / nitrogen), or 96 hours at 60 +5 and < 5%rh for all device containers, or 24 hours at 125 +5 not suitable for reel or tubes esd precaution: proper storage and handing procedures should be fol lowed to prevent esd damage to the devices especially when they are removed from t he anti-static bag. electro-static sensitive devices warning labels are on the packing . recommended solder profile notice: (1) reflow soldering should not be done more than t wo times. (2) when soldering, do not put stress on the device s during heating. (3) after soldering, do not warp the circuit board.
everlight electronics co., ltd. http://www.everlight.com document no: dls-0000012 rev 1 ma r. 30, 2009 10 surface - mount ambient light sensor als-pdic17-55c/tr8 soldering iron each terminal is to go to the tip of soldering iron temperature less than 350 for 3 seconds within once in less than the soldering iron capacity 25w. leave two seconds and more intervals, and do soldering of each terminal. be careful because the damage of the product is often started at the time of the hand so lder. repairing repair should not be done after the device have bee n soldered. when repairing is unavoidable, a double-head soldering iron should be used (as below figure). it should be confirmed beforehand whether the characteristics of the device will or will not be damaged by repairing.
everlight electronics co., ltd. http://www.everlight.com document no: dls-0000012 rev 1 ma r. 30, 2009 11 surface - mount ambient light sensor als-pdic17-55c/tr8 xxxxxx xxxxxx xxxxxxxxxxxx xxxx xxxxxxxx rohs packing quantity specification 3000 pcs/ 1 reel label format reel dimensions unit: mm tolerance: 0.1mm
everlight electronics co., ltd. http://www.everlight.com document no: dls-0000012 rev 1 ma r. 30, 2009 12 surface - mount ambient light sensor als-pdic17-55c/tr8 tape dimensions moisture resistant packaging aluminum moistue-proof bag label desiccant label unit: mm tolerance: 0.1mm label aluminum moisture-proof bag desiccant label 1 vcc out 2 gnd 3 gnd 4
everlight electronics co., ltd. http://www.everlight.com document no: dls-0000012 rev 1 ma r. 30, 2009 13 surface - mount ambient light sensor als-pdic17-55c/tr8 note: 1. above specification may be changed without notice. everlight will reserve authority on material change for above specification. 2. when using this product, please observe the absolut e maximum ratings and the instructions for using outlined in these specificat ion sheets. everlight assumes no responsibility for any damage resulting from use of the product which does not comply with the absolute maximum ratings and the instructi ons included in these specification sheets. 3. these specification sheets include materials protec ted under copyright of everlight corporation. please dont reproduce or cause anyone to reproduce them without everlights consent.
everlight electronics co., ltd. http://www.everlight.com document no: dls-0000012 rev 1 ma r. 30, 2009 14 surface - mount ambient light sensor als-pdic17-55c/tr8

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