NJL7502L ver.2010-05-28 - 1 - ambient light sensor general description the NJL7502L is the photo transistor which spectral response is similar to human eye. features 1. peak wavelength 560 nm 2. photo current 33 a typ. condition : white led, 100lux 3. lead pin package applications room light, toy, tv, pdp, clock, refrigerator, etc. to adjust the luminance of display to control on/off replacement of cds absolute maximum ratings (ta=25 c) parameter symbol ratings unit collector - emitter voltage v ceo 70 v emitter - collector voltage v eco 10 v photocurrent i 10 ma power dissipation p d 150 mw operating temperature t opr ? 40 to +85 c storage temperature t stg ? 40 to +100 c soldering temperature t sol 260 c electro-optical characteristics (ta=25 c) parameter symbol test condition min typ max unit photocurrent 1 i l 1 v ce =5v, light source a, 100lux ? 46 ? a photocurrent 2 i l 2 v ce =5v, white led, 100lux 15 33 73 a dark current i d v ce =20v ? ? 0.1 a peak wavelength p ? ? 560 ? nm collector - emitter saturation current i ce(sat) v ce =0.24v, white led, 100lux 10 ? ? a emitter - collector voltage ecl i ecl =1 a , white led, 100lux 9 ? ? v half angle 1/2 ? ? 20 ? deg. rise time t r v ce =5v, i c =1ma, r l =100 ? ? 10 ? s fall time t f v ce =5v, i c =1ma, r l =100 ? ? 10 ? s
NJL7502L - 2 - ver.2010-05-28 test circuit r l = 100 ? v out i l = 1ma v ce = 5v i l v ce = 5v v ce = 0.24v v ce = 5v v ce = 20v v ce = 5v v ce = 5v 100lux light source a 100lux white led photocurrent 2 i l2 photocurrent 1 i l1 dark current i ceo i d 0lux peak wavelength p i l2 light collector - emitter saturation current i ce(sat) i ce (sat) 100lux white led half angle 1/2 rise time tr fall time tf 90% 100mv 10% tf tr ov i l1 i l r l = 100 ?
NJL7502L ver.2010-05-28 - 3 - outline (typ.) typical characteristics spectral response (ta=25oc) 0 20 40 60 80 100 120 300 400 500 600 700 800 900 1000 1100 wavelength (nm) relative response (%) NJL7502L human eye
NJL7502L - 4 - ver.2010-05-28 directivity 0.0 0.2 0.4 0.6 0.8 1.0 -80 -60 -40 -20 0 20 40 60 80 angle (deg.) relative response photocurrent vs. illuminance (ta=25oc) 0.1 1 10 100 1000 10000 1 10 100 1000 10000 100000 illuminance (lux) photocurrent ( a) light source a white led
NJL7502L ver.2010-05-28 - 5 - photocurrent vs. temperature vce=5.0v whiteled 50% 60% 70% 80% 90% 100% 110% 120% 130% 140% -40 -20 0 20 40 60 80 100 ambient temperature ta (c) relative photocurrent (%) photocurrent vs. temperature vce=5.0v light source a 50% 60% 70% 80% 90% 100% 110% 120% 130% 140% 150% -40-200 20406080100 ambient temperatureta (c) relative photocurrent (%)
NJL7502L - 6 - ver.2010-05-28 dark current vs. temperature vce=5.0v 1.0e-08 1.0e-07 1.0e-06 1.0e-05 1.0e-04 1.0e-03 1.0e-02 1.0e-01 1.0e+00 -60 -40 -20 0 20 40 60 80 100 ambient temperature ta (c) dark current iceo ( a)
NJL7502L ver.2010-05-28 - 7 - v ce NJL7502L white led vce=5.0v 0.0001 0.001 0.01 0.1 1 10 1 10 100 1000 10000 100000 ev (lx) vout(v) 500 ? 1k ? 10k ? 100k ? 1m ? r l NJL7502L light source a vce=5.0v 0.0001 0.001 0.01 0.1 1 10 1 10 100 1000 10000 100000 ev(lx ) vout(v) 500 ? 1k ? 10k ? 100k ? 1m ? r l v out NJL7502L r l light fig1 application circuit [caution] the specifications on th is databook are only given for information , without any guarantee as regards either mistakes or omissions. the application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial ri g hts.
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