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1 copyright ? 201 1 , everlight all ri ghts reserved. release date: 09 . 05 .201 1 . issue no: dhe - 0001715 www.everlight.com preliminary introduction everlight`s cob series is an mcpcb substrate based led a chieving high efficiency while maintaining high cri at energy star / ansi color temperature ranges. in addition, everlight`s unique design intelligence allows the cob to m aintain a small cct shift over low to high operating conditions. features applications ? high power cob & high cri led ? multi - chip soluti on ? dimension:30 mm x 30mm x 1.65 mm ? main parameters: luminous flux , forward voltage , chromaticity and color rendering index ? esd protection ? rohs compliant ? energy star / ansi compliant binning structure ? typical viewing angle: 1 20 ? replacement bulb ? indoor ge neral lighting ? recessed can cob 8w series
datasheet cob 8w series 2 copyright ? 201 1 , everlight all ri ghts reserved. release date: 09 . 05 .201 1 . issue no: dhe - 0001715 www.everlight. com table of contents table of contents ................................ ................................ ................................ ............... 2 product nomenclature ................................ ................................ ................................ ........ 3 absolute maximum ratings ................................ ................................ ................................ . 4 luminous flux characteristics for the cob series ................................ ................................ 4 pn of the cob 8 w series : white leds ................................ ................................ ............... 5 product binning :luminlous flux bin s ................................ ................................ ................... 6 prodcut binning:warm white bin structure ................................ ................................ .......... 7 product binning :warm white bin coordinates ................................ ................................ ...... 7 product binning : forward voltage bins ................................ ................................ .................... 8 me chanical dimensio n ................................ ................................ ................................ ........ 9 pad configuration ................................ ................................ ................................ ............ 1 0 8 w cob typical electro - optical characteristic curve ................................ ......................... 1 1 p roduct labeling ................................ ................................ ................................ .............. 16 carrier tray specification ................................ ................................ ................................ .. 16 recommended installation screw pitch ................................ ................................ ............. 17 precautions of use ................................ ................................ ................................ ........... 18 revision history ................................ ................................ ................................ ............... 20
datasheet cob 8w series 3 copyright ? 201 1 , everlight all ri ghts reserved. release date: 09 . 05 .201 1 . issue no: dhe - 0001715 www.everlight. com product nomenclature the product name is designated as below : el cob C a bcde C fghij C v1234 designation: ab = minimum luminous flux (lm) or radiation power (mw) performance c = radiation pattern / lens type [1] d = color [ 2 ] e = power consumption [ 3 ] f = reserved for future product offerings g = internal coding h = packag ing type [ 4 ] ij = internal coding v = f orward v oltage b in 1234 = color b in or cct b in notes 1. table of radiation patte rn s / lens type symbol description 0 no lens 2. table of color offerings : symbol color dominant wavelength range /peak wavelength/cct c coo l - white 4745~7050 k n neutral - white 3710~4745 k m warm - white 2580~3710 k 3. table of power consumptions: symbol description 8 8~ 8. 9 w 4. table of packag ing type s: symbol description t tray
datasheet cob 8w series 4 copyright ? 201 1 , everlight all ri ghts reserved. release date: 09 . 05 .201 1 . issue no: dhe - 0001715 www.everlight. com absolute maximum ratings parameter symbol ra t ings unit 8w max. dc forward current (ma) i f 370 ma max. peak pulse current (ma) i pulse 600 ma thermal resistance r th 1~2 c/w max. junction temperature t j 1 15 c operating temperature t o pr - 40 ~ + 85 c storage temperature t s tg - 40 ~ +100 c max. soldering temp erature t s ol 260 c note s : 1. tp Q 100 m s, duty cycle = 25% luminous flux characteristics for the cob series color part number 8w minimum luminous flux (lm) typical luminous flux (lm) drive current (ma) el cob C n70m8 700 77 5 370 el cob C n70c8 700 76 0 370 note: 1. luminous f lux measurement tolerance: 10%. 2. the data of luminous flux measured at thermal pad=25c 3. typical luminous flux or light output performance is operated within the condition guided by this datasheet. warm w hite cold w hite
datasheet cob 8w series 5 copyright ? 201 1 , everlight all ri ghts reserved. release date: 09 . 05 .201 1 . issue no: dhe - 0001715 www.everlight. com pn of the cob 8w series : white leds the table below is a list of part numbers for the everlight cob 8w series white led. all parts listed match ansi binning standards. bin offerings of 2700k are listed and currently available. cri is also listed with min 80 . typical v iew ing angle is 120 . these clearly listed binning options allow for proper design and implementation into lighting applications . the order codes below are currently available white cob leds . for example: if you order product using p/n elcob - n7 0m8 - 0ltje - c2700 , you will get warm white, cob series leds at 370 ma are listed below. cob 8 w series leds at 3 7 0ma are listed b elow color order code of el cob minimum luminous flux (lm) typical luminous flux (lm) cct (k) forward voltage (v) cri ( min )[1] typical viewing angle (degrees) 2 1/2 [ 3 ] el cob - n 7 0m 8 - 0ltje - c 27 00 7 00 77 5 27 00 - 1~ 27 00 - 4 19.5 ~ 24.0 80 [ 2 ] 120 el cob - n 7 0 c8 - 0lt g e - c 50 00 7 00 760 5000 - 1~ 50 00 - 4 19.5 ~ 24.0 70 [ 2 ] 120 note: 1. the cri value is based on the everlight testing instrument. 2. cri measurement tolerance: 2. ` 3. viewing angle is the width of half the light output intensity in all directions of 180 . color cri cct forward voltage (v) minimum luminous flux (lm) warm whi t e 80 2 7 k - 1 ~ 2 7 k - 2 ~ 2 7 k - 3 ~ 2 7 k - 4 19.5~21.0(t4) 21.0~22.5(t5) 22.5~24(t6) 700 warm white 27 00 cold white 5000
datasheet cob 8w series 6 copyright ? 201 1 , everlight all ri ghts reserved. release date: 09 . 05 .201 1 . issue no: dhe - 0001715 www.everlight. com product binning l uminous flux bins group bin minimum p hotometric f lux (lm) maximum p hotometric f lux (lm) group bin minimum p hotometric f lux (lm) maximum p hotometric f lux (lm) e 1 4 5 k 1 225 250 2 5 6 2 250 275 3 6 8 3 275 300 4 8 10 4 300 325 5 10 13 5 325 350 6 13 17 6 350 375 7 17 20 7 375 400 8 20 23 8 400 425 9 23 27 9 425 450 f 1 27 33 n 1 450 475 2 33 39 2 475 500 3 39 45 3 500 550 4 45 52 4 550 600 5 52 60 5 600 650 6 60 70 6 650 700 7 70 80 7 700 750 8 80 90 8 750 800 9 90 100 j 1 100 110 2 110 120 3 120 130 4 130 140 5 140 150 6 150 160 7 160 180 8 180 200 9 200 225
datasheet cob 8w series 7 copyright ? 201 1 , everlight all ri ghts reserved. release date: 09 . 05 .201 1 . issue no: dhe - 0001715 www.everlight. com warm white bin structure warm white bin coordinate s 2700 k bin cie x cie y bin cie x cie y 27k - 1 0.469 0.429 27k - 2 0.456 0.426 0.459 0.410 0.447 0.408 0.470 0.413 0.459 0.410 0.481 0.432 0.469 0.429 reference range: 2580~2 700 k reference range: 2700~2870 k bin cie x cie y bin cie x cie y 27k - 4 0.459 0.410 27k - 3 0.447 0.408 0.448 0.392 0.437 0.389 0.459 0.394 0.448 0.392 0.470 0.413 0.459 0.410 reference range: 2580~2700 k reference ra nge: 2700~2870 k notes: 1. color coordinates measurement allowance : 0.01
datasheet cob 8w series 8 copyright ? 201 1 , everlight all ri ghts reserved. release date: 09 . 05 .201 1 . issue no: dhe - 0001715 www.everlight. com cold white bin structure cold white bin coordinate s 5000 k bin cie x cie y bin cie x cie y 50 k - 1 0.355 0.376 50 k - 2 0.346 0.369 0.346 0.369 0.338 0. 362 0.345 0.356 0.337 0.349 0.353 0.362 0.345 0.356 reference range : k reference range: k bin cie x cie y bin cie x cie y 50 k - 4 0.353 0.362 50 k - 3 0.345 0.356 0.345 0.356 0.337 0.349 0.344 0.343 0.337 0.337 0.352 0.349 0.344 0.343 reference range: k reference range: k notes: 1. color coordinates measurement allowance : 0.01
datasheet cob 8w series 9 copyright ? 201 1 , everlight all ri ghts reserved. release date: 09 . 05 .201 1 . issue no: dhe - 0001715 www.everlight. com forward voltage bins bin minimum forward voltage (v) maximum forward voltage (v) t3 18.0 19.5 t4 19.5 21.0 t5 21.0 22.5 t6 22.5 24.0 t7 24.0 24.5 note s: 1. forward v oltage measurement tolerance: 1 v
datasheet cob 8w series 10 copyright ? 201 1 , everlight all ri ghts reserved. release date: 09 . 05 .201 1 . issue no: dhe - 0001715 www.everlight. com mechanical dimension note : 1. dimensions are in millimeters. 2. tolerances unless mentioned are 0.1 3 mm. 3. represents a m ulti - chip design [3]
datasheet cob 8w series 11 copyright ? 201 1 , everlight all ri ghts reserved. release date: 09 . 05 .201 1 . issue no: dhe - 0001715 www.everlight. com pad configuration pad function 1 anode 2 cathode
datasheet cob 8w series 12 copyright ? 201 1 , everlight all ri ghts reserved. release date: 09 . 05 .201 1 . issue no: dhe - 0001715 www.everlight. com 8 w cob 2700k typical electro - optical characteristic curve relative spectral distribution @ substrate temperature = 25 400 500 600 700 800 0.0 0.2 0.4 0.6 0.8 1.0 2700k 5000k wavelength(nm) relative luminous intensity 20 30 40 50 60 70 80 90 100 0.0 0.2 0.4 0.6 0.8 1.0 1.2 2700k 5000k substrate temperature(c) relative luminous flux
datasheet cob 8w series 13 copyright ? 201 1 , everlight all ri ghts reserved. release date: 09 . 05 .201 1 . issue no: dhe - 0001715 www.everlight. com forward voltage vs. forward current @ substrate temperature = 25 relative luminous flux vs. forward current @ substrate temperature = 25 0 100 200 300 400 500 600 700 18 19 20 21 22 23 24 25 2700k 5000k forward current(ma) forward voltage(v) 0 100 200 300 400 500 600 700 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2700k 5000k forward current(ma) relative luminous flux
datasheet cob 8w series 14 copyright ? 201 1 , everlight all ri ghts reserved. release date: 09 . 05 .201 1 . issue no: dhe - 0001715 www.everlight. com correlated color temperature vs. forward current @ substrate temperature = 25 color coordinate vs. substrate temperature @ forward current = 3 7 0ma 0 100 200 300 400 500 600 700 2500 3000 3500 4000 4500 5000 5500 2700k 5000k forward current(ma) correlated color temperature(k) 0.256 0.258 0.260 0.262 0.264 0.520 0.521 0.522 0.523 0.524 0.525 2700k 85 o c 65 o c 75 o c 55 o c 35 o c 45 o c 25 o c cie-u' cie-v'
datasheet cob 8w series 15 copyright ? 201 1 , everlight all ri ghts reserved. release date: 09 . 05 .201 1 . issue no: dhe - 0001715 www.everlight. com correlated color temperature vs. substrate temp erature @ forward current = 3 70 ma 25 35 45 55 65 75 85 2500 3000 3500 4000 4500 5000 5500 2700k 5000k substrate temperature(c) correlated color temperature(k)
datasheet cob 8w series 16 copyright ? 201 1 , everlight all ri ghts reserved. release date: 09 . 05 .201 1 . issue no: dhe - 0001715 www.everlight. com typical diagram characteristics of radiation patterns notes: 1. 2 1/2 is the off axis angle from lamp centerline where the luminous intensity is 1/2 of the peak value. 2. view ing angle tolerance is 5 .
datasheet cob 8w series 17 copyright ? 201 1 , everlight all ri ghts reserved. release date: 09 . 05 .201 1 . issue no: dhe - 0001715 www.everlight. com product labeling label explanation cpn: customer specification (when required) p/n : everlight production number qty: packing quantity cat: luminous flux (brightness) bin hue: color bin ref: for ward voltage bin lot no: lot number made in taiwan: production place carrier tray specification loaded quantity: 3 0 pcs p er t ray led direction ? the triangle mark on the leds will be toward the anode mark on the carrier tray.
datasheet cob 8w series 18 copyright ? 201 1 , everlight all ri ghts reserved. release date: 09 . 05 .201 1 . issue no: dhe - 0001715 www.everlight. com outside carton packaging quantity ? 3 0 pcs per tray ? 10 trays per outside carton recommended installation screw pitch
datasheet cob 8w series 19 copyright ? 201 1 , everlight all ri ghts reserved. release date: 09 . 05 .201 1 . issue no: dhe - 0001715 www.everlight. com precautions of use over - current - proof ? thought the everlight cob has a conducted esd protection mechanism, customers must not use the device in reverse and should apply resistors for extra protection . otherwise slight voltage shift may cause significant current changes and bum out failure may happen . s torage ? before the package is opened. the leds should be stored at 30c or less and 50 %rh or less after being shipped from everlight and the storage life limits are 6 months . if the leds are stored for 6 months or more, they should be stored in a sealed container with a nitrogen atmosphere and moisture absorbent material. ? after o pening the package: the led's should be stored under 30 or less and 3 0% rh or less. the led should be us ed with 168hrs (7days) after opening the package. if unused leds remain, it should be stored in moisture proof packages . ? do not stack assemblies contain ing everligt cob leds so that anything stacks on the optical surface of leds. forces applied to the optical surface may result in the surface being damaged.
datasheet cob 8w series 20 copyright ? 201 1 , everlight all ri ghts reserved. release date: 09 . 05 .201 1 . issue no: dhe - 0001715 www.everlight. com handling ? don not putting mechanical stress on the led. ? never touch the optical surface with finger or sharp object. the led surface could be soiled or damaged, which could affect the optical performance of the led. ? in low - humidity work environment, please keep handling the leds with appropriate esd grounding. ? it is recommended to handle the led with powder - less latex gloves. manual handling when handling the product, do not apply direct pressure on the optical surface. do not touch the resin with tweezers to avoid scratching or other damage. thermal management ? sufficient thermal management must be implemented. the substrate temperature must be kept under 85 at the driving current 370 ma . otherwise, the junction temperature of die may exceed over the limit at high current driving conditions and the led s lifetime may be decrease dramatically .
datasheet cob 8w series 21 copyright ? 201 1 , everlight all ri ghts reserved. release date: 09 . 05 .201 1 . issue no: dhe - 0001715 www.everlight. com revision history current version : 1 2 . 2 6 .2011 issue no : dhe - 0001715 v ersion : 2 page subjects (major change in previous version) date of change

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