LG Innotek 10W Application Note Download Page 38

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7. Additional Information & Caution

7.2 Quality Issue of LED in Operation

Solder Area

NG PKG

Image

◎

Carbonization of surface from Excessive Solder Flux

: flux

COB LED PKG

1) When the flux component generated during the soldering process is exposed

at the LED surface, discoloration of the lens may occur.

2) Sn element is detected on all abnormal COB LED, which is the cause of the

carbonization defect.

3) If foreign substance is detected, clean COB LED with IPA.

Summary of Contents for 10W

Page 1: ...Application Note COB LED Series 4W 7W 10W 13W 17W 24W RoHS Compliant CUSTOMER DATE Feb 24 2014 REV REV 0 3 ...

Page 2: ...s 2 1 1 Chromaticity Bins 2 1 2 Spectrum Distribution 2 1 3 CRI Information 2 1 4 Luminous Intensity Diagram Angular color Uniformity 2 1 5 Viewing Angle 2 1 6 Ray File Set 2 1 7 Hot Cold Factor 2 2 Thermal Properties 2 2 1 Thermal Design Guide Thermal resistance 2 2 2 Thermal Design Guide Simulation 2 3 Soldering and Handling 2 3 1 Handling Guide 2 3 2 Soldering Guide 2 3 3 Connector using guide ...

Page 3: ...Characteristics 4 COB Driver Guide 4 1 Recommended COB Drivers 5 Eco system 5 1 Downlight Production Guide 6 Reliability 4 1 LM 80 Test Results 4 1 1 IES LM 80 2008 Test Results 7 Certification Safety 5 1 Certification Safety 8 Additional Information Caution 6 1 Risk of Sulfurization 6 2 Quality Issue of LED during Operation 9 Revision History Page 26 27 28 29 31 33 34 35 36 38 39 ...

Page 4: ...4 x 14 x 1 00 mm 0 85 mm L x W x H 10W 13W 17W 24W COB LED 18 x 24 x 0 85 mm L x W x H Top side solder connection 1 Introduction Top View Side View 1 1 Product Overview 4 Circuit diagram 4W 7W 10W 13W 17W 24W 10W 13W 17W 4W Tc Measurement point Tc Measurement point 24W 4W 7W 7W 7W 10W 13W 17W 24W ...

Page 5: ...imension at 10W 13W 17W 24W easy to design the lens connector and so on Connector Solution Service 1 Introduction 1 1 Product Overview 1 1 3 Product Benefits and Features 5 10W 13W 17W 24W Cool Warm 4W 7W Cool Warm 14 x 14 x 1 00 0 85 mm L x W x H 14 x 14 x 1 00 0 85mm L x W x H 18 x 24 x 0 85 mm L x W x H 18 x 24 x 0 85 mm L x W x H ...

Page 6: ...e used in various lighting applications as illustrated below 1 Introduction 1 2 Product Application Retrofit Lamp Bulb MR16 PAR 30 38 Outdoor Street Tunnel Parking Area Architectural 1 2 1 COB LED Applications 6 Down Lights Spot Lights ...

Page 7: ... silver plated metal part on LEDs can be rusted when exposed to corrosive gases The corrosive atmosphere must be avoided during the use and storage Due to possible sulfurization of silver plated metal LED should not be used and stored together with oxidizing substances made of materials in a following list solder cream plain paper rubber and so on Electrical 1 The current to the each LED must not ...

Page 8: ...specified maximum junction temperature Cleaning 1 If required isopropyl alcohol IPA should be used Eye Safety Guidelines 1 Do not directly look at the light when the LEDs are on 2 Proceed with caution to avoid the risk of damage to the eyes when examining the LEDs with optical instruments Others 1 The stated information in the application note assumes typical equipment being operated under normal ...

Page 9: ...le but can be developed within 1 month based on demand BIN 4500K 5000K 5700K 6500K Cx Cy Cx Cy Cx Cy Cx Cy 7 SDCM 0 3376 0 3616 0 3207 0 3462 0 3366 0 3369 0 3222 0 3243 0 3515 0 3487 0 3366 0 3369 0 3551 0 3760 0 3376 0 3616 4 SDCM 0 3416 0 3589 0 35 0 3657 0 3485 0 3524 0 3407 0 3462 2 SDCM 0 3429 0 3507 0 3434 0 3571 0 3475 0 3604 0 3469 0 3539 0 30 0 31 0 32 0 33 0 34 0 35 0 36 0 37 0 38 0 39 ...

Page 10: ...SDCM 4 SDCM 2 SDCM K color bin is not available but can be developed within 1 month based on demand BIN 2700K 3000K 3500K 4000K Cx Cy Cx Cy Cx Cy Cx Cy 7 SDCM 0 4562 0 4260 0 4299 0 4165 0 3736 0 3874 0 4373 0 3893 0 4147 0 3814 0 3670 0 3578 0 4593 0 3944 0 4373 0 3893 0 3898 0 3716 0 4813 0 4319 0 4562 0 4260 0 4006 0 4044 4 SDCM 0 4575 0 4181 0 4323 0 4098 0 3785 0 3841 0 4477 0 3996 0 4243 0 3...

Page 11: ...0 High CRI Warm 2 Product Technical Guidance 2 1 2 Spectral Power Distribution 2 1 3 CRI Information 2 1 Optical Properties Ra and R Values 11 Neutral 4000K 4500K 0 20 40 60 80 100 120 380 430 480 530 580 630 680 730 780 Cool Neutral Warm High CRI Warm Wavelength nm Relative Luminous Intensity a u ...

Page 12: ... 70 70 80 80 90 90 Photometric 1 2 2 1 4 Luminous Intensity Diagram Angular color Uniformity 2 1 5 Viewing Angle 2 1 Optical Properties 116 0 0 2 0 4 0 6 0 8 1 1 2 90 60 30 0 30 60 90 Relative Luminous Intensity Viewing Angle Viewing Angle Luminous Intensity Diagram Angular color Uniformity 90 60 30 0 30 60 90 90 60 30 0 30 60 90 ...

Page 13: ... marked in the step files as a modeling file which can create accurate optical mechanical models Supported File Formats Download Links Optical Source Model ProSource 8 rs8 http ledlighting lgin notek com support n ewDownCenter jsp Cool Warm IES file Rayset file ASAP 1 000K rays FRED 1 000K rays LightTools 1 000K rays Lucidshape 1 000K rays OPTIS SPEOS 1 000K rays TracePro 1 000K rays Zemax 1 000K ...

Page 14: ...ient temperature is practically identical to the junction temperature since there is not enough time for the LED die temperature to rise in a significant manner with a single pulse The LG Innotek COB LEDs have a hot cold factor of around 0 90 That means the LED will lose only 10 of its nominal performance when the LED is operated at an ambient temperature of 85 4W IF 400mA Case Temperature 10W IF ...

Page 15: ...25 35 45 55 65 75 85 95 105 Relative Luminous Flux Case Temperature 2 Product Technical Guidance 2 1 7 Hot Cold Factor 2 1 Optical Properties 15 Case Temp vs Luminous Flux 95 90 24W IF 640mA Case Temperature 17W IF 470mA 89 96 ...

Page 16: ...ne Ag 4W 7W 10W 13W 17W 24W Anode Cathode Anode Cathode Since TJ cannot be directly measured TJ is calculated by the following equations TJ Tc Δ TJ c Tc R th J c PD Δ TJ c Rth J c X PD where Rth J c is a value found in the datasheet Rth J c W Thermal Resistance p n Junction to Case point Tc COB PKG Case Temperature same as LM80 Ts monitoring point Δ TJ c Difference between Junction and Case Point ...

Page 17: ...ns Ta 25 Heat dispersion condition natural convection Thermal Grease 4 5W mK Heatsink material Al thermal conductivity 180W mK Heatsink dimension 44 W x 25 H x 40 Lh mm Fin number 5ea Fin length 20mm Fin thickness 2 5mm H G Junction temperature vs Surface area of heat sink TIM Thermal Interface Material The surface area of heat sink is controlled with variation of Lh The junction temperature vs po...

Page 18: ... Fin number 7ea Fin length 55mm Fin thickness 1 9mm H G 18 A simulation is an effective procedure with regard to thermal design Simulation results from when the COB LED was attached to the heat sink with TIM are shown as below TIM Thermal Interface Material The surface area of heat sink is controlled with variation of Lh Junction temperature vs Surface area of heat sink The junction temperature vs...

Page 19: ... Fin number 9ea Fin length 55mm Fin thickness 1 9mm H G 19 A simulation is an effective procedure with regard to thermal design Simulation results from when the COB LED was attached to the heat sink with TIM are shown as below TIM Thermal Interface Material The surface area of heat sink is controlled with variation of Lh Junction temperature vs Surface area of heat sink The junction temperature vs...

Page 20: ... Fin number 13ea Fin length 55mm Fin thickness 1 9mm H G 20 A simulation is an effective procedure with regard to thermal design Simulation results from when the COB LED was attached to the heat sink with TIM are shown as below TIM Thermal Interface Material The surface area of heat sink is controlled with variation of Lh Junction temperature vs Surface area of heat sink The junction temperature v...

Page 21: ... Fin number 13ea Fin length 55mm Fin thickness 1 9mm H G 21 A simulation is an effective procedure with regard to thermal design Simulation results from when the COB LED was attached to the heat sink with TIM are shown as below TIM Thermal Interface Material The surface area of heat sink is controlled with variation of Lh Junction temperature vs Surface area of heat sink The junction temperature v...

Page 22: ...rface with fingers or sharp object The LED surface could be soiled or damaged which affect the optical performance of the LED 4 Do not stack assemblies containing COB LED so that anything rests on the LED optical surface Force applied to the optical surface may result in the optical surface being damaged 5 Please avoid touching electrodes while handling packages 6 If debris contacts the resin gent...

Page 23: ...er soldering allow COB LED to return to room temperature before subsequent handling Premature handling of the device especially around the optical surface could result in damage to the LED If PCB cleaning is necessary LG Innotek recommends the use of isopropyl alcohol IPA Ultrasonic cleaning is prohibited Wire orientation OK NG If the naked wire attached at the side of PCB it happens short circuit...

Page 24: ...Frame Type 1 piece type 2 piece type 1 piece type 1 piece type 2 piece type 1 piece type 4W 7W 180416 0001 2 2154857 2 ISS3060 W C 10W 24W 47 319 2080 180416 0001 8600 50 2100LG 2 2154857 2 ISS5060 W C 40W 60W 8102 50 2204CT Product Image 47 319 2080 180416 0001 8600 8102 50 2100LG 50 2204CT 2 2154857 2 ISS3060 W C ISS5060 W C Optical latch Yes LEDIL No Yes LEDIL Yes LEDIL No No Electrical Contact...

Page 25: ... to the COB LED contacts 2 The use of the holder avoids the screw mounting of the COB LED onto the heat sink Connector Assembly guide 1 The COB LED is pushed into the holder and kept in place by two plastic pins 2 This is still an open issue that needs to be deepened together 3 Push in terminals 25 2 3 Soldering and Handling 2 3 3 Connector Guide ...

Page 26: ... MC Multi Color Type LE Light Emitting Diode Color PKG Type S SMD Type M Module Type A Ceramic Type H High Power SMD Type PKG Dimension A NEDA Revision All LEDs are tested and sorted by color luminous flux and forward voltage where every LED in a reel has only a single color bin luminous flux bin and forward voltage bin However the forward voltage bin information is not captured in the part number...

Page 27: ...inuously 27 LedLink KHATOD BICOM Ledil Carclo Optic Supplier Nation 4W COB 10W 24W COB Lens KHATOD www khatod com Italy Φ34 96 19 2mm Φ50 00 24 5mm 8 types LEDLINK www ledlink optics com Taiwan 24 80 20 types 15 38 23 types Reflector BICOM http www bicomoptics com China 12 34 7 types 29 55 4 types LEDIL http ledil com Finland 14 44 10 types 12 72 12 types CARCLO http www carclo optics com UK 31 46...

Page 28: ...SP ASO38R49 M2 LL01SP ATH38R49 M2 LL01CR ABG38L LL01CR ADP38L LL01ED ABX38L 40 LL01CR ABH40L 45 LL01CR PV45L Mx LL01CR ZE45L LL01CT ALN45R49 55 LL01CR ABG55L LL01SP ASO55R49 M2 60 LL01CR PV60L Mx 80 LL01CR PV80L Mx BICOM 12 13 BK LED 809A 18 19 BK LED 809B 28 BK LED 850A 32 33 BK LED 809C 34 37 BK LED 809D BK LED 850D 43 2 BK LED 850B 55 1 BK LED 850D LEDIL 12 14 MIRELLA 50 S PF MIRELLA 50 S MIRE ...

Page 29: ...erial PC Transmittance 89 4W COB Warm Diameter Φ45mm Height 35 1mm Material PC Transmittance 89 4W COB Warm Diameter Φ45mm Height 35 1mm Material PC Transmittance 89 4W COB Cool Diameter Φ45mm Height 35 1mm Material PC Transmittance 89 4W COB Cool Diameter Φ45mm Height 35 1mm Material PC Transmittance 89 4W COB Cool Diameter Φ45mm Height 35 1mm Material PC Transmittance 89 Designed by BICOM 29 12 ...

Page 30: ...er 10W COB Warm Diameter Φ45mm Height 20mm Material PC Transmittance 89 10W COB Warm Diameter Φ45mm Height 20mm Material PC Transmittance 89 10W COB Warm Diameter Φ45mm Height 20mm Material PC Transmittance 89 Designed by BICOM 30 28 5deg 43 2deg 55 1deg Please contact our sales representative if you want to receive the other type of 2nd optics ...

Page 31: ...cUL CSA 13W ROAL D RLDD015L 350 90 135 24 48 350 16 8 UL ENEC CE ROAL D RLDD015H 350 176 265 24 48 350 16 8 UL ENEC CE Inventronics LUC 018S035DSP 90 305 31 51 350 18 UL cUL CE PSE MEAN WELL APC 16 350 90 264 12 48 350 16 8 CE SELV LPS UL MEAN WELL APC 20 350 90 264 9 48 350 16 8 CE LPS UL Philips Lighting 913701213402 120 277 20 56 200 700 39 UL cUL CSA Philips Lighting XI050C100V054XP L1 dim on ...

Page 32: ... 24 UL cUL CE PSE PFC Inventronics D LLC 024S050RSP 90 132 24 48 500 24 UL ENEC CE Inventronics D LHC 024S050RSP 176 264 24 48 500 24 UL ENEC CE 24W Philips Lighting XI050C100V054XPL1 dim on 120VAC only 120 277 27 54 300 1000 50 UL cUL CE Philips Lighting 913701213402 120 277 20 56 200 700 39 UL cUL CSA Inventronics EUC 024S070DS 90 305 28 56 700 24 UL cUL CE PSE TUV MEAN WELL PLC 30 48 90 264 33 ...

Page 33: ...ocket insert wire to socket Step 3 Screw Socket on the heatsink Step 4 Put a reflector in the socket COB 10W 13W 17W 24W Socket 1 Ideal Industry 2 BJB Connector 3 TE Connector Lens 1 Ledil 2 Bicom 3 Ledlink 4 Carclos 5 Khatod Thermal guide Step 5 Connect the power drive Power drive 1 Inventronics 2 Meanwell 3 Philips ...

Page 34: ...icity Shift Δu v at 10 000hr Due date at 10 000hr 10W 55 260mA 99 2 0 0010 55000 85 99 7 0 0010 95 98 7 0 0011 13W 55 340mA 98 3 0 0008 55000 85 98 4 0 0010 95 97 8 0 0012 17W 55 470mA 99 1 0 0008 55 000 85 99 2 0 0009 95 98 9 0 0010 Model Case Temp Tc Test Current If Average Flux Maintenance at 9 000hr Average Chromaticity Shift Δu v at 9 000hr Due date at 6 000h 4W 55 400mA 97 6 0 0024 54000hr 7...

Page 35: ...rrent SGS NOV 20 2011 IEC 62471 In progress Risk 1 10W 13W 17W 24W UL UR OCT 18 2012 Max Current SGS NOV 20 2012 IEC 62471 Jan 8 2013 Risk 1 Max current for testing UL is shown in each specification sheet http ledlighting lginnotek com support downCenter jsp cate Brochure The files can be downloaded directly from the LG Innotek web site ...

Page 36: ...n by the Gases Sulfur Chlorine or other halogen compounds The Root Cause Silver may turn black or tarnish when exposed to gases Reaction Mechanism 2Ag S Ag2S Black Bottom Ag Encapsulant Image EDS Results of Analysis at SEM EDS 36 Silicon Carbon Oxygen Hydrogen Gas Gas Gas ...

Page 37: ...loration by sulfur gases PKG Case 2 sulfurization by environment Detected with sulfur element The surrounding environment needs to be inspected before the aging test since the environment may contain sulfur under the normal condition Discoloration 37 PCB surface condition ...

Page 38: ...from Excessive Solder Flux 38 flux COB LED PKG 1 When the flux component generated during the soldering process is exposed at the LED surface discoloration of the lens may occur 2 Sn element is detected on all abnormal COB LED which is the cause of the carbonization defect 3 If foreign substance is detected clean COB LED with IPA ...

Page 39: ...on Date Contents of Revision Remark Rev 0 0 13 01 10 New Establishment Rev 0 1 13 02 04 Add connector solution Rev 0 2 13 06 13 Add 24W COB Power 2nd optic Connector solution Rev 0 3 14 02 24 Add 7W COB Modify Bin structure 39 ...

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