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everlight electronics co., ltd. http:\\www.everlight.com document no: das-015-007 rev1.1 a ug. 14, 2008 1 surface - mount ambient light sensor als-pdic15-21b/tr8 features ? monolithic ic containing photodiode and current amp lifier ? human-eye spectral response and excellent ir-cut (f rom 700 to 1050 nm) ? wide dynamic range: 1 lux to 30,000 lux ? excellent output to illuminance linearity ? size: 3.2mm (l)*1.5mm (w)*1.1mm (h) ? very low (< 3%) photocurrent fluctuation versus tem perature change (0 to 60 o c) ? wild supply voltage range: 1.5v to 5.5v ? standby current: < 1 ua ? light to current, analog output ? operating temperature performance, -30 o c to 85 o c ? rohs compliant and pb free package description the als-pdic15-21b/tr8 is a compact surface mount p hoto-sensor ic for detecting ambient light illuminating intensity. the sensitivity is su perior to that of a phototransistor, and exhibits little chip-to-chip variation. it has excellent spe ctral sensitivity to the illuminating light source and excellent output linearity. due to very low pho to current fluctuation versus temperature change, als-pdic15-21b/tr8 is very suitable for han d-held or outdoor application device. applications ? detection of ambient light to control display backl ighting mobile devices C mobile phones, pdas, gps computing device C tft lcd monitor for notebook c omputer consumer device C tft lcd tv, plasma tv ? 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
everlight electronics co., ltd. http:\\www.everlight.com document no: das-015-007 rev1.1 a ug. 14, 2008 2 surface - mount ambient light sensor als-pdic15-21b/tr8 package dimensions 1.8 r0.35 1 3 2 4 1 vcc out 2 gnd 3 gnd 4 sensor window 1 2 3 4 top view bottom view unit: mm tolerances: 0.1mm
everlight electronics co., ltd. http:\\www.everlight.com document no: das-015-007 rev1.1 a ug. 14, 2008 3 surface - mount ambient light sensor als-pdic15-21b/tr8 absolute maximum ratings ( ta=25 ) parameter symbol rating unit supply voltage v cc -0.5~7.0 v output voltage v o 0 ~ vcc-0.9 v output photo current i ph 0 ~ 5 ma operating temperature range t opr -40 ~ +85 storage temperature range t stg -40 ~ +100 soldering temperature range [note1] t sol 260 human body model esd hbm 3000 v machine model esd mm 300 v note1: for detail reflow time and the recommended temperat ure profile, please refer to page 8. recommended operating conditions ( ta=25 ) parameter symbol min. max. unit operating temperature t opr -40 +85 supply voltage v cc 1.5 5.5 v
everlight electronics co., ltd. http:\\www.everlight.com document no: das-015-007 rev1.1 a ug. 14, 2008 4 surface - mount ambient light sensor als-pdic15-21b/tr8 electrical and optical characteristics ( ta=25 ) parameter symbol min. typ. max. unit test condition supply current i cc 160 a ev = 1000 lux dark current i d 10 na e v = 0lux i ph1 1.2 1.7 1.9 a v cc =3v; e v =10lux [note1] [fig.2] i ph2 12 17 19 a v cc =3v; e v = 100lux [note1] [fig.2] i ph3 20 a v cc =3v; e v = 100lux [note2] [fig.2] light current i ph4 200 a v cc =3v; e v =1000lux [note1] [fig.2] photocurrent ratio i ph3 / i ph2 1.2 saturation output voltage v o 2.05 2.15 v v cc =3v; e v = 100lux, r l =135k ? [fig.3] peak sensitivity wavelength p 580 nm rise time t r 0.1 1 ms switching time fall time t f 0.5 2 ms v cc =3v,r l =5k [fig.4] note: 1. white fluorescent light (color temperature = 650 0k) is used as light source. however, white led is substituted in mass production. 2. illuminance by cie standard illuminant-a / 2856k , incandescent lamp.
everlight electronics co., ltd. http:\\www.everlight.com document no: das-015-007 rev1.1 a ug. 14, 2008 5 surface - mount ambient light sensor als-pdic15-21b/tr8 2. vcc 1. vout 3. gnd 4. gnd current amp 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 pdic15-21b pdic15-21b 2. v out 1. v cc 3. gnd 4. gnd pdic15-21b
everlight electronics co., ltd. http:\\www.everlight.com document no: das-015-007 rev1.1 a ug. 14, 2008 6 surface - mount ambient light sensor als-pdic15-21b/tr8 0.1 1 10 100 1000 10000 1e-3 0.01 0.1 1 10 100 1000 light current (ua) illuminance (lux) -40 -20 0 20 40 60 80 100 0.4 0.6 0.8 1.0 1.2 1.4 1.6 v cc = 3v e v = 100 lux relative light current temperature ( ) 1 2 3 4 5 6 7 0.4 0.6 0.8 1.0 1.2 1.4 1.6 e v = 100 lux relative light current vcc (v) -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 cc = 3v relative dark current (na) temperature ( ) typical electrical and optical characteristics curv es fig.5 light current vs. illuminance fig.6 dark curre nt vs. temperature fig.7 relative light current vs. temperature fig.8 light current vs. supply voltage fig.9 spectral response fig.10 switching time vs. load resistenc e
everlight electronics co., ltd. http:\\www.everlight.com document no: das-015-007 rev1.1 a ug. 14, 2008 7 surface - mount ambient light sensor als-pdic15-21b/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: das-015-007 rev1.1 a ug. 14, 2008 8 surface - mount ambient light sensor als-pdic15-21b/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: das-015-007 rev1.1 a ug. 14, 2008 9 surface - mount ambient light sensor als-pdic15-21b/tr8 xxxxxx xxxxxx xxxxxxxxxxxx xxxx xxxxxxxx rohs packing quantity specification 2000 pcs/ 1 reel label format reel dimensions unit: mm tolerance: 0.1mm
everlight electronics co., ltd. http:\\www.everlight.com document no: das-015-007 rev1.1 a ug. 14, 2008 10 surface - mount ambient light sensor als-pdic15-21b/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
everlight electronics co., ltd. http:\\www.everlight.com document no: das-015-007 rev1.1 a ug. 14, 2008 11 surface - mount ambient light sensor als-pdic15-21b/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.

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