OEM Design-in guideFortimo LED DLM System – Version 1.0
•PhilipsFortimo LED DLM 1100 & 2000 in 3000 K, 3500 K & 4000 K
Design-in guide Philips Fortimo LED downlight module system2
Contents1. Introduction 3
Features and benefits 4
Applications 4
2.LEDs,theheartoftheFortimodownlightmodule 5
What is a LED? 5
LED packaging 5
Binning 6
LUXEON Rebel LEDs 6
Fortimo LED DLM addresses the issue of binning 6
Color consistency (SDCM) 7
Miniaturization 7
3.PhilipsFortimoLEDDLMsystem 7
Fortimo LED DLM portfolio 7
Fortimo LED DLM “4000 K” 7
Fortimo LED DLM “3500 K” 7
Fortimo LED DLM “3000 K” 7
Fortimo LED DLM cable 7
Fortimo LED DLM driver 7
The basic principles of the Fortimo LED DLM system 8
Starting characteristics 8
Luminous flux during start period 8
Lumen maintenance 8
Dimming 8
Future range extensions 8
Nomenclature 9
About the Fortimo LED DLM (downlight module) 9
Dimensions of Fortimo LED DLM module and driver 9
Mechanical fixation 10
About the Fortimo LED DLM driver 10
About the Fortimo LED DLM cables 10
4.Systemperformancespecifications 11
5.Lightingperformancecharacteristics 12
Specification of the system after 100 hours 12
UV and other hazards 12
Spectral power distribution 3000K, 3500K, 4000K 13
Dimming characteristics 13
6.Designingaluminaire 14
UL recommendations 14
Electrostatic device (ESD) measures 14
Installation instructions 14
Wiring 14
Connecting to the mains supply 14
Connecting to protective ground 14
Connecting to 12 V 14
Connecting a Fortimo LED DLM driver to the module 14
Fortimo LED DLM cable 15
Outdoor luminaires 15
Secondary optics 15
7.Heatsinkdesignandtemperaturemeasurements 16
General 16
Test requirements 16
Maximum temperature 16
Critical measurement points 16
Operation under built-in conditions 16
Case temperature and thermal circuit 17
Case temperature and Fortimo module performance 17
Operation in free air 17
Heat sink design 18
Thermal conductivity 18
Emission coefficients 18
Size of heat sink 19
Active and passive cooling 19
Passive cooling 19
Air flow 20
Thermal design 20
From the temperature test point Tc (point 1)
to the side surfaces (point 2) 20
From the heat sink to ambient (point 3) 20
Thermal model 21
Calculating your heat sink 22
From the datasheet: 22
Shape of heat sink 23
The Fortimo LED DLM with the two connected
heat sinks and three thermo couples installed 23
How to measure Tc 23
SynJet cooling from Nuventix 24
Nuventix contact information 24
8.Lightinginstallationsandtheenvironment 25
Electromagnetic compatibility 25
Humidity 25
Exposure to direct sunlight 25
Vibration and shocks 25
Standards and approvals 25
IP codes, dust and moisture protection 25
End-of-life behavior 25
Fortimo LED DLM system disposal 25
9. Schematicluminairewiththe
Fortimo LED DLM system 26
Design-in guide Philips Fortimo LED downlight module system 3
1. IntroductionThank you for choosing the Philips Fortimo LED DLM system.
This guide tells you all about this system. If you require any further information
or support please consult your Philips sales representative or visit:
www.philips.com/fortimo
TheadvantagesofLEDshavebeenknownfor40years:
•Longlife–lowmaintenancecost
•Robustness–highreliability
•Saturatedcolors–maximumvisualeffect
•Coolbeam–noheatingofilluminatedproducts
•NoUVorIR–wideapplicationpossibilities
•Low-voltageoperation–moresafety,easeofuse
•Mercury-free–carefortheenvironment
Rapidimprovementsinhigh-powerLEDtechnologymeanthatLEDscannowbeusedforthefirst
timein‘real’lightingapplications,providingimprovementsovertraditionallightingsystems.
UtilizingLEDtechnologyhasitschallenges,suchashowtodesignaroundconstantperformance
improvement,howtoengineerandprovideappropriateheatsinkingand/orhowtodealwith
variationsinflux/color.TheFortimoLEDDLMsystemaddressesthesedifferencesandfacilitates
easyadoptionofLEDtechnologyforhighlumenpackages(1000lumensplus).Thesystemis
designedforintegrationinluminaires.Thistechnicalapplicationguideaddressestherelevantissues
tosupportandfacilitatetheworkofspecifiersandlightingsystemdesigners.
TheFortimoLEDDLMsystemis,asthenamesuggests,designedandintendedfordownlight
luminaires.OtherapplicationscanbeexploredbyOEMsaslongasthiscreatesnodesignconflicts
withtheFortimoLEDDLMsystemandlocalstandards.Pleaseconsultusifyouwishtodeviate
fromthedesignrulesasdescribedinthisdesign-inguide.
ReferencethePhilipswebsiteforcomplimentaryheatsinkorreflectorproductinformation.
Design-in guide Philips Fortimo LED downlight module system4
Features and benefits
Features Benefits
Breakthrough LED L3 energy saving
Patentedremotephosphortechnology
Fortimodriver>85%efficiency
LED system suitable for functional lighting applications.
Efficient,easytomeetEnergyStardrivers
Superior-quality white LED light
1100&2000lmmodules
CRI=80,3000K,3500K,4000K
Remotephosphor
Optimizedlightmixingchamber
Dedicatedbinningstrategy
An enabler for entry into general lighting
CompeteswithCFLsystems
Meetsthenormsforgenerallighting
Veryhigh(optical)luminaireefficiencies
Perfectlymixedlight,consistentcolorqualityandlumenoutput
Future-proofed, convenient modules
Fixedformfactor
Fixedlumenpackage
Easy-to-mountheatsink/optics
Comfortablelight
NoheatorUV
Dimmable,instant100%light
EasytoworkwithforOEMs
Fewertechnicalbarriers
Fastertime-to-market
Easyfortheendusertoexperience
Morecomfortable,nodamagetomaterials
Multiplescene-settingoptions
Long lifetime of 50,000 hrs
Integratedlifetime-preservingmethod
Low-maintenance
Morereliable,longerlife
3000 K, 3500 K & 4000K Warmcoloroptionsavailabletoo
Fortimo DLM Driver Easeofinstallation
Dimmablevia0–10VProtocol Dimmingincreasesefficiencyupto30%
Applications
TheFortimoLEDDLMsystemisintendedforgenerallightingapplicationsintheprofessionalmarketfor
offices,hospitalityandretail.Examplesofapplicationsinclude:
•Offices(representativeareassuchasreceptions,boardrooms,etc.)
•Publicbuildings(cinemas,restaurants,theaters,airports,exhibitionhalls)
•High-endshops
•Retail(supermarkets,bakery/butcherareas,leathergoods,etc.)
* Use in outdoor luminaires?
Neither the Fortimo LED DLM module nor the LED driver has an IP classification.
If an OEM decides to use the Fortimo system in a luminaire for outdoor application, the OEM is responsible for
proper IP protection and approbation of the luminaire.
Design-in guide Philips Fortimo LED downlight module system 5
2. LEDs, the heart of the Fortimo downlight moduleThe development of Light Emitting Diodes (LEDs) is progressing at such a pace
that they are rapidly gaining importance for lighting applications. To most people,
the term LED still only means the small indicator lights that show whether the
TV set is switched on. These tiny light sources barely emit enough light to make
themselves visible. However, breakthroughs made in the last few years now allow
LEDs to be used for ‘real’ lighting applications that have traditionally been the
domain of incandescent lamps and discharge lamps. Philips Lumileds was the
first to bring high power LEDs for lighting applications to the market under the
Luxeon trademark. Luxeon emitters are among the highest-performance LEDs in
the world, allowing us to offer the brightest solid-state lighting solutions.
What is a LED?
LEDsaresolid-statedevices,builtupfromcrystallinelayersofsemiconductormaterial.Thelight
generationprocessmakesuseofthespecialelectronicpropertiesofcrystallinesemiconductors
inaprocesscalledinjectionluminescence.Inbrief,thismeanstheinjectionofchargedparticles
byanelectricfieldfromonesemiconductorlayerintoanother,wheretheyareabletorelaxto
alower-energystatebyemittingvisiblelight.LEDsproducenarrowlightspectra.Thebandwidth
remainslimitedtoafewtensofnanometers,andisthereforeperceivedbythehumaneyeas
asingle,deeplysaturatedcolor.LEDsarenowavailableinallwavelengthregionsofthevisible
spectrum;yellowistheonlyregioninwhichnohigh-powerLEDiscurrentlyavailable.White
lightcanbeproducedbycombiningLEDsofdifferentcolors(forinstancered,greenandblue),
orbyapplyingphosphorcoatingsonblueorultravioletLEDs.Likemanyotherlamps,LEDs
cannotbeconnecteddirectlytothemains.TheLEDshavetobeoperatedatastabilizedlow
voltage,whichisprovidedbydriverelectronics.However,LEDsdonotneedignitionandcanbe
switchedwithinmilliseconds.LEDsdonotgeneratenearlyasmuchheatasmanyotherlamps,
butthatdoesnotmeanthatthermaldesignisnotimportant.LEDsdoproduceheatwhenthey
operate,andarethemselvesrelativelysensitivetotemperature.Thermalconsiderationsare
thereforeveryimportantaspectsofLEDlightingsystemdesign.
LED packaging
ThebareLEDdieisstillaverysensitiveandfragiledevicethatmustbehandledinaclean
roomenvironment.Beforebringingthemoutside,theymustbepackaged.Thelightfluxof
conventionalLEDs,forexamplethoseusedasindicatorlightsonTVsets,isseverelylimited
bytheamountofheatgenerated.Inpractice,conventionalLEDpackagesarelimitedtoabout
0.15Watmost,andemitonlyafewlumens.Theirlightistooweaktobeusedforillumination
purposes,andtheycanonlybeusedforluminanceapplications(i.e.whenthelightsourceis
intendedtobevieweddirectly).Abreakthroughcamewithanewpackagedesigninvented
byPhilipsLumileds,whichguidesawaytheheatgeneratedatthediodejunctionmuchmore
efficiently.LEDsbasedonthispackagearesoldunderthetrademarkLuxeon.
Design-in guide Philips Fortimo LED downlight module system6
Insteadofanepoxycap,thechipisencapsulatedinasiliconelens.Thispackagedesignnow
makeshigh-powerLEDsfeasible.
Binning
ThesubjectofbinningshouldbeexplainedbecauseofitsimportanceinLEDsystemdesign.
Asinothersemiconductormanufacturingprocesses,inLEDproductionthenumberof
parametersoftheepitaxyprocessisverylargeandtheprocesswindowsmall(forexample,
thetemperaturemustbecontrolledtowithin0.5°C(<1°F)acrossthewaferattemperatures
of~800°C/1470°F).Thedifficultyofachievingsuchahighdegreeofcontrolmeansthat
thepropertiesoftheLEDsmayvarysignificantlywithinsingleproductionrunsandevenon
thesamewafer.Toobtainconsistencyforagivenapplication,binning(=selectioninbins)is
mandatory.BinninginvolvescharacterizationoftheLEDsbymeasurementandsubsequently
categorizingthemintoseveralspecificbins.TokeepthecostperLEDdown,LEDmanufacturers
mustsellthefullproductiondistribution.Atthesametimetheycannotguaranteetheavailability
ofallbinsatalltimes.Thereisatrade-offbetweenlogisticsandcostpriceontheonehand,
andtheapplicationrequirementsontheother.Settingthespecificationtootightlywillincrease
thecostpriceandmayleadtologisticsproblems.Systemdesignshouldthereforetryto
combineLEDsfromdifferentbinsintelligentlytoobtaintherequiredsystemperformanceata
reasonablepriceandwithreasonabledeliveryreliability.
LUXEON Rebel LEDs
LUXEONRebelisthesmallestsurfacemountablepowerLEDavailabletoday.Withthe
industry’sbestlumensperpackage,highestlightdensity(lumenspermm2),andthehighest
packingdensity,LUXEONRebelisidealforbothspaceconstrainedandconventionalsolid
lightingapplications.Duetothesmallmountingsurfacewehavebeenabletousemultiple
LUXEONRebelwiththeFortimoproductsinordertomatchrequiredhighlumenpackages.
Fortimo LED DLM addresses the issue of binning
High-qualityLEDlightisachievedbymixingthelightofblueLEDsandapplyingaspecial
FortimophosphortechnologyremotefromtheLEDs.High-qualitywhitelightischaracterized
byacolorrenderingof80,popularCCTsingenerallightingapplicationsof3000K,3500K
and4000KandacolorconsistencycomparablewithconventionalCFLandHIDsolutions
(fiveSDCM).
LUXEO Rebel LED
Design-in guide Philips Fortimo LED downlight module system 7
Color consistency (SDCM)
0.31
8
0.33
8
0.35
8
0.37
8
0.39
8
0.41
8
0.43
8
x
CIE 1931 xy
3500
3000
4000
5000
4500
0.434
0.414
0.394
0.374
0.354
0.334
0.314
y
6500
1000
075
00
Color consistency (SDCM)
ThetargetspecificationofFortimoLEDDLMsystemsforcolorconsistencyis5SDCM@0-hours
and6SDCM@10Khrs.ThisisasimilarspecificationasforconventionalCFLlamps.SDCMstands
forStandardDeviationofColorMatchingandthevalue5referstothesizeofanellipsearoundthe
blackbodylocus.Stayingwithinthisellipseresultsinaconsistencyoflightthatensuresthatfrom
oneluminairetoanothernodifferencecanbenoticed.Inthevisualwehaveplotted>3000Fortimo
LEDDLMsystemsandyoucanseetheyallfitwithinthe5SDCMellipse.Thisreallydemonstrates
theuniquequalityoftheremotephosphorconcept.Wealsoplottedtheseresultsinatypicalbin
distributionsheetofPhilipsLumileds.AsyoucanseeallFortimo’sfitwithin1colorbin!Typicallyyou
canbuy6to12binscombinations,notsopreciseasthe1-binresultofFortimo.
Miniaturization
LEDsaretypicallymuchsmallerthanconventionallightsources.Lightingdesignersandspecifiers
immediatelyrecognizedthefactthatLEDsallowdramaticallydifferentlightingdesignsthatcapitalize
onthesetiny,unobtrusivelightsources.Thisisunderstandable,butcaremustalsobetakentodeal
withtheheatproducedbypowerLEDs.Properheatmanagementplaceslimitsonminiaturization.
Fortimo LED DLM portfolio
TheFortimofamilyofproductshasbeenever-evolvingsinceit’sintroductionin2008.By
maintainingitssleekfootprint,OEMscanbenefitfromthesimplicityofit’seasy-to-use,
future-proofdesign.Theexistingportfolioisasfollows:
Fortimo LED DLM “4000 K”
9290098403FortimoLEDDLM110017W/840UL
9290098603FortimoLEDDLM200033W/840UL
Fortimo LED DLM “3500 K”
9290099603FortimoLEDDLM110018W/835UL
9290099703FortimoLEDDLM200034W/835UL
Fortimo LED DLM “3000 K”
9290098303FortimoLEDDLM110019W/830UL
9290098503FortimoLEDDLM200036W/830UL
Fortimo LED DLM cable
442240066181FortimoLEDDLMcable500mmw/ofan
442240068381FortimoLEDDLMcable500mmw/fan
442240072121FortimoLEDDLMcable840mmw/ofan
Fortimo LED DLM driver
913701213402FortimoLEDdriver(120-277V,0-10Vdim)
3. Philips Fortimo LED DLM system
Fortimo LED DLM system
Design-in guide Philips Fortimo LED downlight module system8
The basic principles of the Fortimo LED DLM system
TheFortimoLEDDLMsystemisdesignedfordownlightapplicationsandcontainsthree
components:
•TheFortimoLEDDLM(downlightmodule)
•TheFortimoLEDDLMdimmabledriver
•TheFortimoLEDDLMcable
Allproductscanbeorderedseparately.
Starting characteristics
Thesystemcanbeswitchedoninmilliseconds,whichisageneralcharacteristicofLEDs.
Luminous flux during start period
Incontrasttootherlightsources,LEDscanbeswitchedonatfullpower(oratanyotherdimmed
level)instantaneously.TheFortimoLEDDLMsystemrequiresnoinitialburning-intime.
Lumen maintenance
Whenusedwithinspecification,(Tc<65ºC;Ta=35ºC)lumenmaintenanceof70%at35,000
hoursisexpectedforFortimoLEDDLM.At50,000hourslumenmaintenanceis50%(average
lifetimespecification).
Dimming
ToenabletheFortimoLEDDLMsystemtodim,aspecialFortimoLEDdriverhasbeendeveloped.
DuetotheuseofanAmplitudeModulation(AM)(notPWM)protocoltheefficiencyofthe
Fortimosystemwillincreaseupto30%whiledimming.
Future range extensions
Astechnologyquicklyadvances,theFortimofamilyisstillgrowing.Thefollowingproductsare
expectedsoon:
• FortimoLEDDLMupgradesthatimproveefficiencyandlowercost(dependingonthe
productproposition).
• Fortimowithemergencyfunctionality
• FortimoLEDDLMwitha3000lumenpackage
Fortimo LED DLM module
Design-in guide Philips Fortimo LED downlight module system 9
Nomenclature
Thenamesoftheproductsaredefinedasfollows:
•FortimoLEDDLM110017W/840UL(CRIof80andCCTof4000K)
•FortimoLEDDLM200033W/840UL(CRIof80andCCTof4000K)
•FortimoLEDDLM200034W/835UL(CRIor80andCCTof3500K)
•FortimoLEDDLM110018W/835UL(CRIof80andCCTof3500K)
•FortimoLEDDLM110019W/830UL(CRIof80andCCTof3000K)
•FortimoLEDDLM200036W/830UL(CRIof80andCCTof3000K)
•FortimoLEDDLMcable
•FortimoLEDDLMdriver
About the Fortimo LED DLM (downlight module)
TheFortimoLEDDLMconsistsoffourmaincomponents:
1. PCBwithLEDs
2. Mixingchamber
3. Heatsink
4. Diffuserwithremotephosphortechnology
Dimensions of the Fortimo LED DLM module and driver system
(typicaldata;±0.2mm)
•Maximumcurrentsettingsof700mA
•Class2andisolatedoutput
•Maximum56Venablesclassification
•0-10VDimmableofthesystemasaULClass2powersupply
•Connectorized
•Highefficiency:85%atfullload
•SmallSize
•Tcaselife=75°C
B1A1
C1 C2
A3
Fortimo LED DLM module - dimensions
A1 A2 A3 B1 C1 C2
81.6 - 66.8 82.8 43.7 40.2
A1 B1 C1 D1 E1 F1 F2 F3 F4 G1
9.05" (230.0) 1.77" (45.0) 1.65" (42.0) 8.44" (214.5) 0.18" (4.5) 4.55" (116.6) 1.18" (30.0) 3.00" (76.4) 4.20" (106.7) 2.0" (50.8)
Dimensions in inches (mm).
Fortimo LLM module Fortimo LLM driver
FF4
F2
F3G
Fortimo LED DLM driver - dimensions
F1 F2 F3 F4 G1
116.6 30.0 76.4 106.7 50.8 Note:Dimensionsareinmillimeters(mm)
Design-in guide Philips Fortimo LED downlight module system10
Fortimo LED DLM module, fixing holes and grooves
Fortimo LED driver
High-qualitywhitelightwithhighefficienciesisachievedwithaplainPCBwithLEDsandaremote
phosphorfilmlayer.Themixingchamberensuresperfectlymixedlight,resultinginuniform
colorsandgoodcolorconsistency.Thesquareheatsinkfacilitatesoptimalheattransferinthree
directionsandhelpsluminairemanufacturestodesigntheirownheatsinksystem.Theheatsinkis
equippedwithscrewholesforfixingtheheatsink.Besidesfacilitatinghighefficiencies,theremote
phosphortechnologymakesitrelativelyeasytodevelopvirtuallyanyfluorescentcolor.Thefirst
versionwillhavealightcolorof3000K,3500Kand4000K.Thefunctionofthediffuseristo
shapethelightdistribution,resultinginaLambertianbeam.Theluminairemanufacturerhasthe
freedomtodesignitsownsecondaryoptics.TheLEDmoduleintegrateseasymountingoptions
forsecondaryoptics.TheoveralldimensionsoftheLEDmodule,i.e.thecombinationofheatsink
andmixingchamber,areoptimizedforlumenpackagesvaryingfrom1000lumento2000lumen.
Mechanical fixation
TheFortimoLEDDLMhasscrewholes(M4threadedheadsizelessthan7mm)atthebottom
andsidesoftheheatsinkforfixingtheheatsink.AsanalternativetoscrewstheFortimoLED
DLMalsohasgroovesatthesideofthemodulesothataheatsinkcanbeclickedin.2Dor3D
CADdrawingsareavailableonthePhilipswebsite.
About the Fortimo LED DLM driver
ThehighlyefficientFortimoLEDdriverisspeciallydesignedtooperatetheFortimoLEDDLM
module.Itisdesignedtooperatehigh-powerLEDs.TherearespecificversionsforEurope(220-
240V)andNorthAmerica(120-277V)*becauseofdifferenthousingrequirements.
TherearemeanwhilevariousFortimoLEDdrivers:
•Fixedoutput;build-inforEurope*(220-240V)andNorthAmerica(120-277V)
SpecialfeaturesforthisIntellivolt®dimmabledriverare:
•maximumcurrentsettingsof700mA
•max.56VenablesoperationofmanyLEDsinseries
•Tcase=65ºC
•SafetyClass2system
* A separate design-in guide is available for the European Fortimo DLM system.
About the Fortimo LED DLM cables
Standard500mmand840mmcableswithoutfanand500mmcablewithfancanbeordered.
Fortimo LED DLM cable
1Black Led+
2 Yellow Led-
3— Blank
4 Gray SignalGND/Fan(-)
5 Blue LEDmodulesetting
6 Red NTC(thermalcontrol)
Design-in guide Philips Fortimo LED downlight module system 11
4. System performance specifications
Fortimo LED DLM
System (driver and
module)
Module
12NC
Driver
12 NC
Cable 12NC Vin
(V)
Nom
P
(W)
Nom
pf
Nom
THD
(%)
Nom
Flux
Nom
Fortimo LED DLM1100
19W/830UL
929000498303 913701213402 442240066181 120-277V 19 >0.9 <20 1100
Fortimo LED DLM1100
18W/835UL
929000499603 913701213402 442240066181 120-277V 18 >0.9 <20 1100
Fortimo LED DLM1100
17W/840UL
929000498403 913701213402 442240066181 120-277V 17 >0.9 <20 1100
Fortimo LED DLM2000
36W/830UL
929000495003 913701213402 442240066181 120-277V 36 >0.9 <20 2000
Fortimo LED DLM2000
34W/835UL
929000499703 913701213402 442240066181 120-277V 34 >0.9 <20 2000
Fortimo LED DLM2000
33W/840UL
929000498603 913701213402 442240066181 120-277V 33 >0.9 <20 2000
Fortimo LED DLM
System (driver and
module)
Eff.
(lm/W)
B50L70 @ TC
55C of Module
B50L70 @ TC
65C of Module
Tamb
(ºC)
Tcase Module
(ºC)
Tcase Driver
(ºC)
Nom Nom Nom Nom typ max typ max
Fortimo LED DLM1100
19W/830UL
58 50Khrs 35Khrs (-20)to35 55 65 75 85
Fortimo LED DLM1100
18W/835UL
61 50Khrs 35Khrs (-20)to35 55) 65 75 85
Fortimo LED DLM1100
17W/840UL
64 50Khrs 35Khrs (-20)to35 55) 65 75 85
Fortimo LED DLM2000
36W/830UL
55 50Khrs 35Khrs (-20)to35 55 65 75 85
Fortimo LED DLM2000
34W/835UL
58 50Khrs 35Khrs (-20)to35 55 65 75 85
Fortimo LED DLM2000
33W/840UL
61 50Khrs 35Khrs (-20)to35 55 65 75 85
Design-in guide Philips Fortimo LED downlight module system12
5. Lighting performance characteristics
Specification of the system after 100 hours
Fortimo LED DLM
System (driver and
module)
Light
output
lm
Color
temperature
K
Color
rendering
index
Ra
Color
consistency
initial and at
10K hrs
SDCM
Fortimo LED DLM1100
19W/830UL
1,100 3,000 80 5/6
Fortimo LED DLM1100
18W/835UL
1,100 3,500 80 5/6
Fortimo LED DLM1100
17W/840UL
1,100 4,000 80 5/6
Fortimo LED DLM2000
36W/830UL
2,000 3,000 80 5/6
Fortimo LED DLM2000
34W/835UL
2,000 3,500 80 5/6
Fortimo LED DLM2000
33W/840UL
2,000 4,000 80 5/6
UV and other hazards
PETvalue >100hrs./Klux(zeroUV)
Damagefactor 0.08@4100K
IR(infrared)radiation AswellasbeingfreeofUVradiation,
theLEDmodulesarealsofreeofinfraredradiationinthebeam.
Design-in guide Philips Fortimo LED downlight module system 13
Spectral Power Distribution 3000K, 3500K and 4000K
Dimming characteristics
FortimoDrivermakesuseofaso-calledamplitude(AM)dimmingprotocol.MostLEDsystems
workwithPWM(pulsewidthmodulation)wherethecurrentiscutinpartsanddimminglevels
areachievedbycombining,onhighfrequency,on/offsettings(pulses).AMdimmingreducesthe
currentthroughtheLEDstoachievelowerlightlevels.Atlowercurrents,LEDsoperatemore
efficiently(FigureA).Inadditiontothis,otheradvantagesofAMdimmingare:
•Noaudiblenoiseduringdimming
•Novisualinterferencewithotherlightingorvideosources
•Improvementofoverallperformance
700 mA
100% lightlevel
LED
Cur
rent
700 mA
50% lightlevel
AM Dimming
LED
Cur
rent
700 mA
50% lightlevel
PWM Dimming
LED
Cur
rent
0
0.005
0.01
0.015
0.02
0.025
0.03
0.035
0.04
380 430 480 530 580 630 680 730 780
Intensity(W/n
m)
Wavelength(nm)
34e5t6al478e69ist6i:;<7n=76<m7>?@@>ABCDDE
0
0.005
0.01
0.015
0.02
0.025
0.03
0.035
0.04
0.045
380 430 480 530 580 630 680 730 780
Intensity(W/n
m)
Wavelength(nm)
34e5t6al478e69ist6i:;<7n=76<m7>?@@>ABCCCD
0
0.005
0.01
0.015
0.02
0.025
0.03
0.035
0.04
380 430 480 530 580 630 680 730 780
Intensity(W/n
m)
Wavelength(nm)
34e5t6al478e69ist6i:;<7n=76<m7>?@@>ABCCCD
Figure A
Design-in guide Philips Fortimo LED downlight module system14
6. Designing a luminaireInthischapterrecommendationsandvaluesaregiventoenableoptimalluminairedesign.
U.L. recommendations
ThegeneralrecommendationsforluminairedesigngivenbytheU.L.1598andU.L.8750arealso
applicabletoLED-basedluminaires.
Electrostatic device (ESD) measures
FortimoLEDDLMsystemsdonotrequirespecialESDmeasuresinaproductionenvironment.
Installation instructions
FortimoLEDDLMsystemsarebuild-insystemsforintegrationintoluminaires.
Thereareinterfacesfor:
•CablingbetweenLEDmodule,driverandluminaire
•SecondaryopticsviamountingoptionsintheLEDmodulehousingandreflectorrim
•Heatsinkdesign
Wiring
Connecting to the mains supply
Themainssupplyhastobeconnectedtothepowersupply(L&Ncanbeswitched).
Connecting to protective ground
TheFortimoLEDdriverneedstobeconnectedtoprotectivegroundforreasonsofcompliance
withsafetyregulationsandEMI.
Connecting to 12 V
TheFortimoLEDDLMversionincludesalsoa12Voutputthatcanbeusedforvarious
options,like:
•ActivecoolingofNuventixSynJet(Universal)DLMCoolers
•Other12Voperatingfans
•NotethatwhentheLEDcurrentis<200mA,duetodimming,the12Voutputisswitchedoff
Connecting a Fortimo LED driver to a Fortimo LED module
AspecificcablehasbeendevelopedtoconnecttheFortimoLEDmoduleandtheLEDdriver;
theFortimoLEDDLMcable.This500mmcablecanbeorderedseparatelytotheFortimoLED
DLM systems.
Label Fortimo LED DLM module
Fortimo LED DLM cable
Design-in guide Philips Fortimo LED downlight module system 15
Fortimo LED DLM cable
WeadviseusingtheFortimoLEDDLMcable.HoweverifanOEMpreferstohaveacable
withadifferentlengthithastoorganizethisitself.ThecablespecificationshouldmeetUL
requirements.However,approvaloftheFortimoLEDDLMmoduleandLEDdriverisbased
onareferenceluminairewiththestandardcablelengthof600mm.Inanycase,anyluminaire
designneedsitsownapproval,organizedbytheresponsibleOEM,irrespectiveofthelengthof
cableused.
IfanOEMpreferstohaveacablewithadifferentlengthitcanusethefollowingcable/
connectorspecifications:
JSTconnectoratcabletoLEDmodule:
-housingJSTPAP-06V-S
-contactJSTSPHD-001T-P0.5
FerruleconnectoratcabletoLEDdriver:
-Wagosireferrule-216-201
-WagoTwowireferrule-51018076
Outdoor luminaires
NeithertheFortimoLEDDLMmodulenortheLEDdriverhasanIPclassification.IfanOEM
decidestousetheFortimosysteminaluminaireforoutdoorapplication,itisresponsiblefor
properIPprotectionandapprovaloftheluminaire.
Secondary optics
TheFortimoLEDDLMmodulegeneratesaLambertianbeamshapewhichisapragmatic
startingpointforsecondaryopticdesignbyOEMs.Ray-setfilesareavailableuponrequest.
Thesecondaryopticdesignshouldnotcovertheexitaperture.
Itisnotrecommendedtoputasecondaryoptics(ie.alensorafilter)within70mmof
theFortimolightexitwindow.Whentheproductisinstalledaccordingtoguidelines,the
temperatureofthelightexitwindowwillbebelow105°C.Whenthecustomerdecidesto
placesecondaryopticswithin70mmofthelightexitwindow,thecustomershouldtakecare
thatthetemperatureofthematerialwillnotexceed105°Cforperformanceand115°Cfor
safety.ThetemperatureofthelightexitwindowcanbemeasuredwithInfraredtemperature
sensingtechnique.
Polar intensity diagram
OntopoftheFortimoLEDDLMtherearemounting
options(rimofdiffuserandthreemountingholes)for
positioningsecondaryoptics.
Position of secundary optics
Design-in guide Philips Fortimo LED downlight module system16
General
ForoptimumperformancetheFortimoLEDDLMsystemmustoperatewithinspecified
temperaturelimits.
Test requirements
TheFortimoLEDDLMsystemshavenospecificmeasurementforminimumambient
temperature,whichmaybeaslowas-20ºC.ThisminimumlimitisdeterminedbytheFortimo
LEDdriver.Temperaturemeasurementsshouldonlybeperformedwhentheluminaireis
thermallystable,whichmaytake0.5to2hoursdependingonthethermalcapacityofthe
luminaire.Forallmeasurementssuchastemperature,luminousfluxandpower,astabilization
periodofatleasthalfanhourmustbeallowedbeforeanyreliabledatacanbeobtained.
Measurementsmustbeperformedbymeansofthermocouplesthatarefirmlygluedtothe
surface(andnot,forexample,securedwithadhesivetape).
Maximum temperature
BecauseLEDsaretemperature-sensitive,LEDmodulesrequireadifferentapproachwith
respecttothemaximumpermissiblecomponenttemperature.Thisisdifferenttomostother
typesoflightsources.
Critical measurement points
ForLEDs,thejunctiontemperatureisthecriticalfactorforoperation.Sincethereisadirect
relationbetweenthecasetemperatureandtheLEDjunctiontemperature,itissufficientto
measurethealuminumcasingoftheLEDmoduleatitscriticalpoint.Thecriticalpointisonthe
backsurfaceoftheLEDmodule.Ifthecasetemperature(Tc)atthecriticalmeasurementpoint
istoohigh(exceedingtherecommendedmaximumtemperature),theperformanceoftheLEDs
willbeadverselyaffected,forexampleintermsoflightoutput,lifetimeorlumenmaintenance.
Operation under built-in conditions
TheheatproducedbytheLEDdriverandLEDmoduleintheluminaire(orsimilarhousing)
mustbedissipatedtothesurroundings.Ifaluminaireisphysicallyinsulatedbyaceiling,wallor
insulationblanket,theheatproducedcannoteasilybedissipated.Thiswillresultinheatingof
theLEDdriverandtheLEDmoduleintheluminaire,whichinturncanhaveanadverseeffect
onsystemperformanceandlifetime.Foroptimumperformanceandlifetime,itisimportantthat:
• Aircanflowfreelyaroundtheluminaire
• Airflowthroughtheluminaireandaroundthemodules,musthaveapositiveeffecton
temperaturecontrolandhenceonperformanceandlifetime.
7. Heat sink design and temperature measurements
Temperature test point TC
Tc Ø1cm
Design-in guide Philips Fortimo LED downlight module system 17
Case temperature and thermal circuit
ToensuretheperformanceoftheFortimoLEDDLMsystem,wehavedefinedaTcattheback
surfaceoftheLEDmoduleof65ºC.Atthatcasetemperaturethejunctiontemperatureofthe
LEDsisassuredandtheindicatedperformances(lifetime,lightoutput,lumenmaintenance)can
berealized.AboveaTcof65ºC,athermalcircuitwillbeengaged.ThiscircuitwilldimtheLED
module.Thegraphsbelowdisplaythetypicalcasetemperatureandrelativefluxasafunction
ofambienttemperature,foracalculatedheatsinkperformanceof1K/W.TheFortimoLED
driveralsohasaTcof65ºC.
Theabove-mentionedengagementofthethermalcircuitatTc=65ºCisapplicabletoboth
the1100andthe2000lumenversions.Theperformancesoflightoutput,lightmaintenanceand
lifetimearerelatedtotheTcvalue.
Case temperature and LED module performance
TheFortimoLEDmodulecomesintwoversions,whicharenominallydesignedforacase
temperatureof65°C/149°F.Thefluxisthen100%.Thegraphsbelowshowtherelativelight
output(flux)asa%ofthenominalcasetemperature.Asyoucansee,iftheoperatingconditionof
theFortimoLEDmoduleislowerthantheTcpoint,performancewillincrease.
Operation in free air
TheFortimoLEDDLMisnotdesignedforoperationinfreeair.InsteadFortimoLEDDLMisa
build-inconceptforintegrationintoluminaires.
60% 30 35 40 45 50 55 60 65 70
Tcase (ºC)
Rela
tive
ux
(%)
70%
80%
90%
100%
110%
75 80
Temperatures Fortimo LED DLM2000
30 30 35 40 45 50 55 60 65 70
Ambient temperature (ºC)
Tcas
e (º
C)
75 80
35
40
45
50
55
60
65
70
Ambient temperature (ºC)
60% 30 35 40 45 50 55 60 65 70
Rela
tive
ux
(%)
70%
80%
90%
100%
110%
75 80
Design-in guide Philips Fortimo LED downlight module system18
Heat sink design
Toensurethathousingtemperaturesdonotexceedthespecifiedmaximumvalues,aluminaire
canactasanadditionalheatsink.Theapplicableheattransportmechanismsareconduction
viatheheatsink,convectionandthermalradiationtothesurroundings.Theobjectiveofthis
chapterisnottoindicateexactlyhowtocalculateaheatsink,buttogivesomeguidelines
onhowtoimproveitsperformance.Althoughaheatsinkcanhavemany(complex)shapes,
thefollowingdiscussionisbasedonadisktypeofheatsink.Theresultsforsquareplates,
etc.,aremoreorlessthesameprovidedthesurfaceareasareequal.Thetypeofmaterial
usedhasarelativelylargeinfluenceonthefinalresult.Forexample,acomparisonofthe
thermalconductivity(k)ofcopperwiththatofcorrosion-resistantsteel(below)showsthata
substantiallysmallerheatsinkcanbemadewithcopper.Inpractice,thebestmaterialforheat
sinksis(soft)aluminum.
Thethickness(d)oftheheatsinkdiskisalsoofmajorimportance.Assumingtheuseofdifferent
heatsinksofthesamediameterbutmadefromdifferentmaterials,thesameeffectinterms
oftemperaturedifferencewillbeachievediftheproductofthermalconductivity(k)anddisk
thickness(d)isconstant.Thismeansmoreorlessthesameresultisobtainedwithadiskof
1mmcopper,2mmaluminum,4mmbrass,8mmsteelor26mmcorrosion-resistantsteel.
Increasingthediameter,andtherebyalsothesurfacearea,oftheheatsinkdiskalsoleadsto
animprovement,buttheeffectissmallerforlargerdiametersanddependsonthethermal
conductivity(k)ofthematerialandthethickness(d).
Thermalradiationcanalsoformasubstantialpartofthetotalheattransfer,andisofthesame
orderasforconvection.Thisdependsstronglyontheemissioncoefficient(seetable)ofthe
surface,whichliesbetween0and1.Forexample,apolishedaluminumsurfacehasaverylow
emissioncoefficient,whilethatofapaintedsurfaceisveryhigh.
Material W/mK
Copper 400
Aluminum 200
Brass 100
Steel 50
Corrosion-resistantsteel 15
Material W/mK Emission coefficient
Aluminium new/polished 0.04-0.06
oxidized 0.2-0.3
anodized 0.8
Steel painted 0.8-0.95
new/polished 0.03-0.07
heavilyoxidized 0.7-0.8
Thermal conductivity
Emission coefficients
Design-in guide Philips Fortimo LED downlight module system 19
Size of heat sink
ThefirstgenerationFortimoLEDDLMproductsconsume18Wor45Wandcontainabuilt-in
heatsink.Deductingthedriverefficiencyandtheenergythatiseffectivelygivinglightleavesa
heatdissipationof15Wand38W,respectively,thatneedstobetakenawayfromthemodule.
Thesinkatthesidesandbackofthemoduleisthecontactareafortheexternalheatsink.The
heatsinktransportstheheatawayfromthemoduleandisconnectedtotheheatsink,with
eithertheuseofthepre-madescrewholesorsidegrooves.
Theperformance(lifetimeandamountoflight)ofthemoduledependsheavilyonthethermal
management.Thereforethetemperatureofthetestpoint(Tc)isimportant.Duringthethermal
designprocess,theaimistokeeptheTctemperaturebelowthestatedmaximum(65°C).
AlthoughtheFortimoLEDmodulewillnotfailduetoahighertemperature,theeffectof
insufficientcoolingwillmeanthatthelightoutputoftheLEDsisautomaticallydimmed(seealso
page21.)Sothebetterthethermalmanagement(lowTcoftheLEDmodule),thebetterthe
performanceoftheluminaire(lifetimeandlightoutput).Hereisadifferentiationopportunityfor
luminairemanufacturers.
Active and passive cooling
Therearetwothermalcoolingoptions,passiveandactivecooling.
Passive coolingsystemsaremadesothathotairmovesupwards,andanairflowiscreated
alongthesurfaces.Thisiscallednaturalconvection.
Active cooling systemshaveairflowthatisforcedwithafanorSynJet,whichenhancesthe
thermalcapacityoftheheatsink.Asaresult,asmallerheatsinkcanbeusedandorientation
oftheheatsinkisnoissueanymore.Negativeaspectsofactivecoolingisthepossibilityof
additionalnoisecausedbyafan,aswellasincrementalenergyconsumption.Notethatthe
OEMneedstoengineeracoolingsolutionthatmatchestheentiresystem’slifetimeand
intendedapplication.
Therearemanystandardheatsinksavailablewhicharerelativelycosteffective.Whencomparing
activecooling,theformfactorofthetotalsystemisapproximatelytwotimeslarger.
Passive cooling
Therearetwopassivethermalsolutions.
AsshownontheleftsidesofFigureAandB,thesolutionwiththeheatsinksconnectedtothe
sidesofthemodulehastheadvantageoflowerheight,butalargerdiameter.Thedisadvantage
isanextrathermalresistancepathfromtestpointTc(inthecenteroftherearsurface)tothe
sideswheretheheatsinksareconnected.
AsshownontherightsidesofFigureAandB,theheatsinkisconnectedtothebacksideof
module.Thisconfigurationprovidesnoextrathermalresistance,thoughtoachievethissame
coolingcapacity,extraheightisrequired.
Tc Ø1cm
Temperature test point Tc
Passive solution directions Fortimo LED DLM1100
Passive cooling example for Fortimo LED DLM2000
Figure A
Figure B
Design-in guide Philips Fortimo LED downlight module system20
FortheFortimoLEDDLM1100,thesizeoftherequiredheatsinkissmaller.Thisalldependson
theapplication,butgenerally,theFortimoLEDDLM1100requiresasmallerheatsink.
Air flow
Beforestartingwithanycalculation,animportantpointtoconsideristheairflow.
Ingeneral,hotairismovingupwardswithrelativelylowspeed.Theformandpositionofthe
heatsinkisinfluencingtheairlow.Inthepictureontheleft,thethefinsareperpendiculartothe
airflowwhichreducestheefficiencyoftheheatsink.Thissituationshouldbeavoided.
Abetterwaytopositionthefinsisindicatedinthepictureontheright,wherethefinsare
paralleltotheairflowdirection.Closingthetopoftheprofilewillreducetheeffectivelyofthe
heatsinkaswell,andshouldbeavoidedduringdesignandinstallation.
Thermal design
Therearetwomainthermalpathstoconsider—fromthetemperaturetestpointtotheside
surfacesandfromtheheatsinktotheambienttemperature(warmingupanddynamicbehavior
arenotdiscussedhere,asastaticsituationisnormallyfoundinlightingapplications).
From the temperature test point Tc (point 1) to the side surfaces (point 2)
•ThisisalreadymeasuredbyPhilipsandis0.2K/W.Pleasenotethatifyouattachtheheatsink
directlytothebackofthemodule,the0.2K/Wshouldbeconsidered.
From the heat sink to ambient (point 3)
Thethermalresistanceofaheatsinkisnormallygiveninadatasheet,butitisbasedona
fewassumptions:
•Acertainthermalpowerhastobeapplied,astheefficiencyoftheheatsinkislowerat
lowenergylevels
•Thetemperatureofthebacksideoftheheatsinkishomogeneous
•Anairflowcanfreelyflowoverthesurfaces
Thermal path basic solutions
1
2
3 3
2
Temperatures:
1=testpointTc2=heatsink@
Fortimo LED DLM side
3=ambient
ThermalResistances:
R1=FortimoLEDDLMpath1-2
R2=heatsinkpath3-4
Design-in guide Philips Fortimo LED downlight module system 21
Thermal model
StandardSTATICthermalsituationscanbemodeledwithso-calledthermalresistances.These
resistancesbehavelikeelectricalresistors.Belowtheanalogybetweenelectricalandthermal
resistorsisexplained.Electricalunitsareshownontheleft,withthermalequivalentsshownon
theright.
Withaknownvoltagedifferenceatacertaincurrent,itispossibletocalculateanelectrical
resistorwithOhm’slaw.Thesameispossiblewithathermalresistor.Ifthetemperature
differenceisknownaswellasthethermalpower,thethermalresistancecanbecalculatedwith
thermalOhm’slaw.
Inthefiguresbelowyouseethetwomostimportantthermalresistances.Thefollowingare
somenotableconditions:
•FromtestpointTctosidesurfaceoftheFortimoLEDDLM,wheretheheatsinks
areconnected
•FromsidesurfaceofFortimoLEDDLMtoambient.Aswehaveconnectedtwoheatsinks,
bothwillhaveasimilarthermalresistanceinparallel
•InthespecificationthemaximumTcisgiven,incaseofaFortimoLEDDLM2000system
thisis65°C
Electrical and thermal analogy
Electrical:
V=voltagedifference[V]
I=current[A]
R=resistance[Ω]
Ohm’slaw:
V=I*R
Thermal:
T =temperature
difference[ºC]
Pth=thermalpower[W]
R =thermalresistance[K/W]
or [ºC/W]
ThermalOhm’slaw:T=Pth *Rth
V1
I
T1
Pth
V2 T2
Thermal resistance of Fortimo LED DLM
1
3
3
3
21
1
2
2
Sideview
Topview
Tc
Ths
Tamb
0.2K/W
Design-in guide Philips Fortimo LED downlight module system22
Calculating your heat sink
Westartwith3thermalcalculationformulas:
•Formula1(f1)istherelationbetweentemperaturedifference,thermalpowerandthermal
resistance.Withthisformula,theneededthermalresistancecanbecalculatedwhenthethermal
powerandtemperaturedifferenceareknown.
•Formula2(f2)showshowtocalculatethereplacementoftwoparallelresistors,with
oneequivalent.
•Formula3(f3)showsthereplacementequivalentof2resistorsinseries,simplyaddthevalues.
Nextwegatherallavailableinformation,ascanbefoundinthedatasheet,applicationdetailsand
designchoices.
From the datasheet:
Maximumtestpointtemperature: Tc-max=65°C
ThermalpowerFortimoLEDDLM2000: Pth=20W
ThermalresistancefromTctosidesurface: Rth-Tc-to-side-surface=0.2K/W
Maximumtemperatureinapplication: Tambient-max=35°Cchoseninthiscase.
Inthiscaseweinstalltheproductbelow
ceiling,whichistheambienttemperature
oftheproduct.
Themaximumtemperaturediffersperapplicationandcanbelowerorhigher,thanthenow
chosen35°C.
Belowwecalculatetheneededthermalresistanceoftheheatsink,sothatinworstcasescenarios,
themaximumtemperatureofthetestpointTcisbelowitsmaximum.
Thermal resistance of heat sink
Fortimo LED DLM
Thermal resistance of heat sink 2/3
Rth
c-h
s
Rth
hs-a
mb
Rth
hs-a
mb
Tc
Ths
Tambient
0.2
K/W
2 x
1.1
K/W
1. Calculation of total maximum thermal resistance: (f1)
ΔTambient – Tc = 65 – 35 = 30 °C
Rth Tc – ambient = (Tambient – Tc)/ Pth= 30 / 20 = 1.5 K/W
2. Calculation of thermal resistance two heat sinks: (f3)
Rth hs – ambient = Rth Tc-hs + Rth hs – ambient
Rth hs – ambient = 1.5 – 0.2 = 1.3 K/W
3. Calculation of thermal resistance per identical heat sink: (f2)
R1 = R2 and Rtot-hs-amb = 1/(1/R1 + 1/R2)
Rtot = 1/ (2/R1) = R1/2 <> R1=2Rtot
R1 = Rth single heat sink = 2 * 1.3 = 2.6 K/W
Thermal resistance of heat sink
Fortimo LED DLM
Thermal resistance of heat sink 1/3
Rth
c-h
s
Rth
hs-a
mb
Rth
hs-a
mb
Tc
Ths
Tamb
Available information:
Tc-max = 65°C
Pth-Fortimo2000 = 20 W (2000Lm, 3000K)
Rth-Tc-to-hs = 0.2 K/W
Tambient-max = 35°C
To be calculated:
Rth both heat sinks
0.2 K/W
Formulas:
1
2
3
f1
f2
f3
Thermal:
Parallel:
Series:
Design-in guide Philips Fortimo LED downlight module system 23
Measurements
Nowweknowthethermalresistanceoftheneededheatsink.Thisheatsinkdimensionissuch
thatatmaximumpowerandmaximumambienttemperature,thetemperatureofthetestpoint
Tcisatorbelowitsmaximumof65°C.Thisistheworstcasescenario,whichmeansthat
normallythetestpointtemperatureTcislower.Thisassureslifetimeandlightoutputwillbe
accordingtospecifications.
Shape of heat sink
Whenlookingintoheatsinksuppliers,rememberthattheshapeisdeterminingthethermal
resistanceoftheheatsink.Inthiscase,thelengthisadesignparameter.
Thegraphatleft,showsthethermalresistanceoftheheatsink,withincreasinglength.
Withtheparametersprovidedinthisexample,weneeda2.6K/Wheatsinkandtheredline
indicatesthatthisprofilehasthestatedvaluewithalengthofapprox.90mm.
Therearemanyvariationsinfinnumber,lengthoffins,lengthofheatsinkandsoon.With
specialthermaldesignsoftware,atailor-madesolutioncanbefoundaswell.
Withtheuseofastandardthermocouple,allimportanttemperaturescanbemeasuredand
comparedtotheoreticalvalues.
On the left you see the standard set-up for thermal testing of the Fortimo LED
DLM system which includes two connected heat sinks and three thermocouples.
Keythermocoupletestpointsare:
•AttestpointTc
•AttheheatsinkinterfaceoftheFortimoLEDDLMmodule
•Attheambienttemperatureinsituation
Withthissimpleset-up,allimportantvaluescanbemeasuredandcomparedtothetheoretical
values.It’simportanttoassuregoodthermalcontactbetweenFortimoLEDDLMandtheheat
sinks.Werecommendusingthermalpadsorthermalpaste.Furthermore,itisveryimportant
thatthereisnomovingairintheroom.Thiswillinfluencethemeasurementheavily.
How to measure Tc
IncaseyouhavenodirectoreasyaccesstoconnectathermocoupletothedefinedTcpoint,
werecommendconnectingthethermocoupletooneofthesidesoftheFortimoLEDDLM.
TheheatsinkthatisintegratedintheFortimoLEDDLMmoduleensuresthattemperature
differenceforTcpointtobothsidesisminimal.Inthevisualontheleft,youseethisdifference
isapproximately8degreeswithaFortimoLEDDLMof2000lumens.Ifaheatsinkisconnected
tothebackofthemodule,thistemperaturedifferencewillreduceto4degrees.
Heat flow = 38.25 WConductivity Aluminium = 180 W/mKHeat transfer via both side walls
Temperature ºCMax: 6..538e+001Min: 5.726e+0012008/8/28 17:31
65.382
64.479
63.576
62.673
61.770
60.868
59.965
59.062
58.159
57.256
57.344
58.1
59.5265.02
Thermal resistance of heat sink
Fortimo LED DLM
Thermal resistance of heat sink 3/3
Example of standard heat sink: • Needed 2.6 K/W • Heat sink: Marston 28DN • Length @ 2.6 K/W = 90 mm (red line)
• Width= 97 mm height= 25 mm, #fins= 10 Rth= 2.6 K/W per heat sink (data sheet)
Fortimo LED DLM
Thermal resistance of heat sink 3/3
Example of standard heat sink: • Needed 2.6 K/W • Heat sink: Marston 28DN • Length @ 2.6 K/W = 90 mm (red line)
• Width= 97 mm height= 25 mm, #fins= 10 Rth= 2.6 K/W per heat sink (data sheet)
Fortimo LED DLM
Thermal resistance of heat sink 3/3
Example of standard heat sink: • Needed 2.6 K/W • Heat sink: Marston 28DN • Length @ 2.6 K/W = 90 mm (red line)
• Width= 97 mm height= 25 mm, #fins= 10 Rth= 2.6 K/W per heat sink (data sheet)
Design-in guide Philips Fortimo LED downlight module system24
SynJet cooling from Nuventix
NuventixhasdevelopedacoolingsolutionutilizingSynJettechnologythatofferssilent
operation,longlifeandrobustcoolingforFortimoLEDDLMsystems.Itssmallsizeallowsitto
beusedintightspaces.SynJetcoolingallowsforuniversalmounting,permittinggreatflexibility
ininstallation.Theunitisdesignedforusewith1100and2000lumenFortimoLEDDLMs,
providinglong-termthermalsolutionsforLEDlighting.
Nuventixoffersthesestandardversions:
•SynJetDLMCoolerwithheatsink(round)
•SynJetUniversalDLMCoolerwithheatsink(square)
Designandassemblyguidesareavailableforbothproductsbyrequest.
Nuventix contact information
Forfullspecificationandapplicationassistance,pleasecontactNuventixdirectly:
JeffKelley,VPSales,Americas
E-mail:[email protected]
512. 382. 8116 or 512. 422. 4391
4635BostonLane
Austin,TX78735
www.nuventix.com
Belowaresomeadditionalreferencesforotherfansuppliers:
Emb Papst,website:http://www.ebmpapst.com/de/
EmbPapstisahigh-end,German-basedfansupplier.Theycoverabroadapplicationrange
(includingautomotiveapplications)andhavealotofexperienceinfanapplicationsforharsh
environments.
Sunon,website:http://www.sunon.com/index.htm
SunonisalargeTaiwan-basedfansupplier,mainlyactiveinelectronicscooling.TheirMaglev
technologyusesamagneticfieldtostabilizethefan,resultinginlonglifeandlownoise.
FurtherwewouldliketomentiontwoTaiwanesesuppliersofcoolingassemblies
(combinationsoffan+heatsink):
AVC:website:http://www.avc.com.tw/
CoolerMaster:website:http://www.coolermaster.com/
BothsuppliersareactiveinPCcoolingsolutionsandarestartingabusinessforLEDsolutions
aswell.PleasechecktheFortimowebpage(www.philips.com/fortimo)forthelatestinfoonour
complementarypartners.
Design-in guide Philips Fortimo LED downlight module system 25
Electromagnetic compatibility
Electromagneticcompatibility,EMC,istheabilityofadeviceorsystemtooperatesatisfactorily
initselectromagneticenvironmentwithoutcausingunacceptableinterferenceinpractical
situations.PhilipsFortimoLEDDLMsystemsenableaFFCPart15ClassALuminaire.
Humidity
FortimoLEDDLMmodulesandLEDdrivershavenoIPclassification.TheOEMisresponsible
forproperIPclassificationandapprobationoftheluminaire.
Exposure to direct sunlight
ExposuretodirectsunlightduringoperationmayhaveseveretemperatureorUVeffects.Where
thissituationislikely,extensivetemperaturetestingisrecommended.
Vibration and shocks
Shockresistance:50g@6mssemi-sinusoidal.
Vibrationresistance:sweep50-150Hz,onehouratresonancefrequency(all3axes)withoutfailure.
Standards and approvals
PhilipsFortimoLEDDLMsystemscomplywiththefollowinginternationalrulesandregulations:
ElectricalClassification ULClass2
Approvals UL8750,CSAC22.2No.250.0
IP codes, dust and moisture protection
PhilipsFortimoLEDDLMsystemsarebuild-insystemsandhavethereforenoIPrating.
End-of-life behavior
Unliketypicalconventionallightsources,LEDsarenotsubjecttosuddenfailureorburnout.There
isnotimeatwhichthelightsourcewillceasetofunction.Instead,theperformanceofLEDsshows
gradualdegradationovertime.Whenusedaccordingtospecification,FortimoLEDDLMmodules
arepredictedtodeliveranaverageof70%oftheirinitialintensityafter35,000hoursofoperation
atTc65ºCand50,000hoursofoperationatTc55ºC.Thelifeofthesystemisthereforemore
dependentontheotherelectronicsystemcomponentsandsolderingmethods.
TheLEDsintheFortimoLEDDLMmoduleareconnectedinseries.IfoneLEDfails,thiswill
leadtoaninternalshort-circuit(characterofblueLEDs).Inthiscaseitwillstillconductcurrent,
sothattheotherLEDswillstilloperate.
Fortimo LED DLM system disposal
Attheendoftheir(economic)lifetime,appropriatedisposaloftheFortimoLEDDLMorits
componentsisrecommended.Themodulesarebasicallynormalpiecesofelectronicequipment
containingcomponentsthatatpresentarenotconsideredtobeharmfultotheenvironment,
orwhichcanbedisposedofwithnormalcare.Itisthereforerecommendedtodisposeofthese
partsasnormalelectronicwasteaccordingtolocalregulations.
8. Lighting installations and the environment
Design-in guide Philips Fortimo LED downlight module system26
8...9 mm
0.5...1.0
12
3
4
DLM
FORTIMO DLM POWER SUPPLY
Engineering
sample
9. Schematic luminaire with the Fortimo LED DLM system
ThefirstFortimoLEDDLMsystemshavebeendesignedtobuildthe
driverinsidetheluminaire.AddedvalueopportunitiesforOEMare
optic-,heatsink-andluminairedesign(dottedlines).
PE (Protective Earth)connected to heat sink
PE (Protective Earth)connected to enclosure
FortimoLEDDLMsystemsareclass2systemsthatrequire
properprotectiveearthwiring.It’simportantthatthedriver
isconnectedtoprotectiveearth.Thedrawingontheright
showshowtoproperlywiretheFortimoLEDDLMmodule
anddriver.
©2010PhilipsLightingElectronicsN.A.Allrightsreserved.
FormNo.LE-6230-R0101/10
PhilipsLightingElectronicsN.A.10275WestHigginsRoadRosemontIL60018Tel:800-322-2086Fax:888-423-1882CustomerSupport/TechnicalService:800-372-3331OEMSupport:866-915-5886www.philips.com/fortimo
9. Schematic luminaire with the Fortimo LED DLM system
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