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everlight electronics co., ltd. http://www.everlight.com document no: dls-0000020 rev 1 m ar. 26, 2010 1 surface - mount ambient light sensor als - pdic1 7 - 77 b /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 : 1.6mm(l)*1.6mm(w)*0.55mm(h) ? rohs compliant, pb free and halogen free package description the als-pdic17-77b/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-0000020 rev 1 m ar. 26, 2010 2 surface - mount ambient light sensor als - pdic1 7 - 77 b /tr8 package dimensions unit: mm top view bottom view
everlight electronics co., ltd. http://www.everlight.com document no: dls-0000020 rev 1 m ar. 26, 2010 3 surface - mount ambient light sensor als - pdic1 7 - 77 b /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 9. 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
everlight electronics co., ltd. http://www.everlight.com document no: dls-0000020 rev 1 m ar. 26, 2010 4 surface - mount ambient light sensor als - pdic1 7 - 77 b /tr8 electrical and optical characteristics ( ta=25 c ) parameter symbol min. typ. max. unit test condition supply current i cc 480 950 a vcc = 3v, ev = 1000lux r l = 1k [note2] dark current i d 100 na v cc =3v e v = 0lux i ph1 3.2 4 4.8 a v cc =3v; e v =10lux [note1] [fig.2] i ph2 32 40 48 a v cc =3v; e v = 100lux [note1] [fig.2] i ph3 48 82 a v cc =3v; e v = 100lux [note2] [fig.2] light current i ph4 400 480 a v cc =3v; e v =1000lux [note1] [fig.2] photocurrent ratio i ph3 / i ph2 1.2 1.7 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 600 nm rise time t r 11 1000 s fall time t f 400 2000 s delay time t d 250 s switching time storage time t s 35 s 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: dls-0000020 rev 1 m ar. 26, 2010 5 surface - mount ambient light sensor als - pdic1 7 - 77 b /tr8 pdic15-21c 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 pdic17-77b pdic17-77b 1.v cc 6. v out 2. gnd 3. gnd 4. gnd 5. gnd pdic17-77b
everlight electronics co., ltd. http://www.everlight.com document no: dls-0000020 rev 1 m ar. 26, 2010 6 surface - mount ambient light sensor als - pdic1 7 - 77 b /tr8 1 10 100 1000 10000 0.1 1 10 100 1000 10000 fluorescent light incandescent lamp light current (ua) illuminance (lux) 2 3 4 5 6 7 0.0 0.4 0.8 1.2 1.6 ta = 25 relative light current supply voltage (v) 200 300 400 500 600 700 800 900 1000 1100 1200 0 20 40 60 80 100 relative sensitivity wavelength (nm) 1 10 100 1000 10000 1e-3 0.01 0.1 1 10 incandescent lamp r l = 100 k fluorescent light r l = 100 k incandescent lamp r l = 30 k fluorescent light r l = 30 k incandescent lamp r l = 5.1 k fluorescent light r l = 5.1 k vcc = 3v ta = 25 output voltage (v) 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. illu minance
everlight electronics co., ltd. http://www.everlight.com document no: dls-0000020 rev 1 m ar. 26, 2010 7 surface - mount ambient light sensor als - pdic1 7 - 77 b /tr8 1 10 100 1000 10000 0.1 1 10 100 1000 r l = 100 k r l = 50 k r l = 5.1 k vcc = 3v ta = 25 consumption current (ua) illuminance (lux) -40 -20 0 20 40 60 80 100 0.6 0.8 1.0 1.2 1.4 vcc = 3v ev = 100 lux r l = 1k relative consumption current temperature ( ) fig.11 consumption current vs. illuminance fig.12 relative consumption current vs. temperature
everlight electronics co., ltd. http://www.everlight.com document no: dls-0000020 rev 1 m ar. 26, 2010 8 surface - mount ambient light sensor als - pdic1 7 - 77 b /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-0000020 rev 1 m ar. 26, 2010 9 surface - mount ambient light sensor als - pdic1 7 - 77 b /tr8 recommended method of storage 1. do not open moisture proof bag before devices ar e ready to use. 2. shelf life in sealed bag from the bag seal date : 18 months at 10c~30c and < 90% rh. 3. after opening the package, the devices must be s tored at 10c~30c and 60%rh, and used within 1 year (floor life). 4. if the moisture absorbent material ( desiccant material) has faded or unopened bag has exceeded the shelf life or devices (out of bag) hav e exceeded the floor life, baking treatment is required. 5. if baking is required, refer to ipc/jedec j-std- 033 for bake procedure or recommend the following conditions: 192 hours at 40c +5/?0c and < 5 % rh (reeled/t ubed/loose units) or 96 hours at 60c 5c and < 5 % rh (reeled/tube d/loose units) or 24 hours at 125c 5c, not suitable for reel o r tubes. 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-0000020 rev 1 m ar. 26, 2010 10 surface - mount ambient light sensor als - pdic1 7 - 77 b /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-0000020 rev 1 m ar. 26, 2010 11 surface - mount ambient light sensor als - pdic1 7 - 77 b /tr8 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-0000020 rev 1 m ar. 26, 2010 12 surface - mount ambient light sensor als - pdic1 7 - 77 b /tr8 tape dimensions progressive direction
everlight electronics co., ltd. http://www.everlight.com document no: dls-0000020 rev 1 m ar. 26, 2010 13 surface - mount ambient light sensor als - pdic1 7 - 77 b /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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