microsemi 580 pleasant street, watertown, ma. 02472-2408, 617-926-0404, fax: 617-924-1235 page 1 copyright ? 2002 rev. 0.02, 2003-01-15 www. microsemi . com UPGLED510 bright green led p roduct p review microsemi?s high brightness UPGLED510 product offers impressive brightness with industry leading thermal resisitivity. these products deliver superior thermals that keep junction temperatures low with a remarkable package thermal resisitivity of 110 degrees c/watt. the green packages also deliver a very wide viewing angle able to easily integrate into optical lenses. the optomite package performs extremely well under extrem e temperature conditions with less wavelength shift and intensity degradation seen by many competitors. important: for the most current data, consult microsemi ?s website: http://www.microsemi.com absolute maximum ratings at 25o c (unless otherwise specified) thermal characteristics (unless otherwise specified) thermal resistance symbol value units junction-to soldering point r js 125 c/w parameters symbol value unit dc forward drive current i f 30 ma peak forward current i fp 100 ma led operating junction temper ature tj -40 to +150 c reverse voltage v r 8 v power dissipation p d 100 mw operating temperature t opr -40 to +125 c storage temperature t s -45 to +130 c electrostatic discharge esd 1000 v esd classification class 2 key features ? low thermal resistance ? rugged optomite 0603 package ? high intensity ? broad angular coverage ? high luminous flux efficacy ? 6.5 lumens per watt applications/benefits ? bright green led emitter ? low profile optomite 0603 ? low forward voltage ? color uniformity ? signage illumination u u p p g g l l e e d d 5 5 1 1 0 0
microsemi 580 pleasant street, watertown, ma. 02472-2408, 617-926-0404, fax: 617-924-1235 page 2 copyright ? 2002 rev. 0.02, 2003-01-15 www. microsemi . com UPGLED510 bright green led p roduct p review note: anode is identified by th e underside of the led, (sma ller of the two base pads) mount to circuit boards usi ng pb/sn 60/40 or equivalent. maximum solder temperature e xposure is 260c for 10 seconds. electrical parameters @ 25 c & id=20 ma (unless otherwise specified) characteristic symbol test conditions min typ. max units radiant intensity i e dc drive current = 20ma 350 400 w/sr luminous intensity i v dc drive current = 10ma dc drive current = 20ma dc drive current = 30ma dc drive current = 50ma 155 85 160 220 330 mcd dominant wavelength dom dc drive current = 20ma 515 nm peak wavelength pk dc drive current = 20ma 510 nm chrom x chrom y dc drive current = 20ma 0.126 0.667 angle coverage to 50% points 1/2 dc drive current from 10ma to 50ma 170 deg. radiant flux e dc drive current = 20ma 1.1 mw luminous flux v dc drive current = 10ma dc drive current = 20ma dc drive current = 30ma dc drive current = 50ma 0.25 0.46 0.64 0.86 lumens forward voltage v f dc drive current = 10ma dc drive current = 20ma dc drive current = 30ma dc drive current = 50ma 3.2 3.4 3.5 3.8 3.55 v reverse leakage current i r reverse voltage = 5 v 100 na
microsemi 580 pleasant street, watertown, ma. 02472-2408, 617-926-0404, fax: 617-924-1235 page 3 copyright ? 2002 rev. 0.02, 2003-01-15 www. microsemi . com UPGLED510 bright green led p roduct p review bottom view mounting foot print u u p p g g l l e e d d 5 5 1 1 0 0
microsemi 580 pleasant street, watertown, ma. 02472-2408, 617-926-0404, fax: 617-924-1235 page 4 copyright ? 2002 rev. 0.02, 2003-01-15 www. microsemi . com UPGLED510 bright green led p roduct p review tape and reel 3,000 units/reel notes: dimensions is shown in metric. m m e e c c h h a a n n i i c c a a l l
microsemi 580 pleasant street, watertown, ma. 02472-2408, 617-926-0404, fax: 617-924-1235 page 5 copyright ? 2002 rev. 0.02, 2003-01-15 www. microsemi . com UPGLED510 bright green led p roduct p review 1 10 3 0.01 0.1 1 50 100 150 thermal resistance vs power-on time power-on time (sec) thermal resistance (c/watt) steady state thermal resistance junction-to-optomite base metal ~ 110c/w thermal time constant ~ 20 ms (@ 0.632 x r max ). s tea dy state te m pera ture a t ~ 5 00 m s . t t h h e e r r m m a a l l
microsemi 580 pleasant street, watertown, ma. 02472-2408, 617-926-0404, fax: 617-924-1235 page 6 copyright ? 2002 rev. 0.02, 2003-01-15 www. microsemi . com UPGLED510 bright green led p roduct p review typical characteristics 2.8 3 3.2 3.4 3.6 3.8 4 1 10 100 forward voltage (volt) dc drive current (ma) 0 500 1000 0 20 40 60 radiant intensity (w/sr) dc drive current (ma) 0 100 200 300 400 0 20 40 60 luminous intensity (mcd) dc drive current (ma) 0 20 40 60 0 0.2 0.4 0.6 0.8 dc drive current (ma) chrom x, chrom y chrom y chrom x
microsemi 580 pleasant street, watertown, ma. 02472-2408, 617-926-0404, fax: 617-924-1235 page 7 copyright ? 2002 rev. 0.02, 2003-01-15 www. microsemi . com UPGLED510 bright green led p roduct p review calculation for safe operation above 20 ma dc : the power dissipation must be held at a level to maintain the junction below the maximum specified operating temperature. duty cycle control may be used to establish th e safe operating condition using a train of pulses. led junction temperature may be calculated by use of the following: t j t case v f i dpk . t p r js . 1 t p z t p . z z tp . t case v f i dpk t p r js t p z t p z z tp t case is at a specified temperature. v f and i dpk values are read off graph of forward voltage vs drive current. t p and are set by the on-time and pulse period of the drive circuit. thermal impedances ( z ) and thermal resistance ( r ) values are read from thermal impedance graph. u u p p g g l l e e d d 5 5 1 1 0 0
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