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CUSTOMER :
DATE
: Feb 24. 2014.
REV
:
Application Note
(4W, 7W, 10W, 13W, 17W, 24W)
.
REV. 0.3
.
COB LED Series
RoHS
Compliant

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Summary of Contents for LG Innotek COB LED Series

  • Page 1 CUSTOMER : DATE : Feb 24. 2014. REV. 0.3 Application Note COB LED Series (4W, 7W, 10W, 13W, 17W, 24W) RoHS Compliant...
  • Page 2: Table Of Contents

    CONTENTS Page 1. Introduction 1.1 Product Overview 1.1.1 Product Description 1.1.2 Outline Dimensions 1.1.3 Product Benefits and Features 1.2 Product Application 1.2.1 COB LED Applications 1.3 Caution 2. Product & Technical Guidance 2.1 Optical Properties 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...
  • Page 3 CONTENTS Page 2.4 Nomenclature Code 2.4.1 LED Part Number Nomenclature 3. 2 Optical Design 3.1 2 Optical Design Guide 3.1.1 Availability 3.1.2 2 optic Product List 3.1.3 2 Optic Characteristics 4. COB Driver Guide 4.1 Recommended COB Drivers 5. Eco system 5.1 Downlight Production Guide 6.
  • Page 4: Introduction

    1. Introduction 1.1 Product Overview 1.1.1 Product Description • Lighting Color : White • 4W / 7W COB LED : 14 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) •...
  • Page 5: Product Benefits And Features

    1. Introduction 1.1 Product Overview 1.1.3 Product Benefits and Features 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) 10W, 13W, 17W, 24W Cool Warm...
  • Page 6: Product Application

    1. Introduction 1.2 Product Application 1.2.1 COB LED Applications LG Innotek COB LED packages can be used in various lighting applications as illustrated below. Retrofit Lamp • Bulb • MR16 • PAR 30(38) Outdoor • Street & Tunnel • Parking Area •...
  • Page 7: Caution

    10 ~ 24 hours JEDEC Standard MSL : 2a 1) LG Innotek LED must be stored under the above conditions.(JEDEC MSL : 2a) 2) To minimize moisture absorption into the products during the transportation and storage, the products must be packed in a vacuum sealing bags.
  • Page 8 Additional precautionary considerations may be required for specialized equipment and/or unique circumstances. 2) Any disassembly of LG Innotek components for the purpose of reverse engineering without written consent by LG Innotek is strictly prohibited. 3) The appearance and specifications of the products may be changed without...
  • Page 9: Product & Technical Guidance

    2. Product & Technical Guidance 2.1 Optical Properties 2.1.1 Chromaticity Bins LG Innotek complies with the ANSI C78.377A standard for its chromaticity bin structure. For each ANSI quadrangle for the CCT range of 4500K to 6500K, LG Innotek provides 9 / 16 micro bins.
  • Page 10 2. Product & Technical Guidance 2.1 Optical Properties 2.1.1 Chromaticity Bins (Continued) LG Innotek complies with the ANSI C78.377A standard for its chromaticity bin structure. For each ANSI quadrangle for the CCT range of 2700K to 4000K, LG Innotek provides 16 micro bins.
  • Page 11: Spectrum Distribution

    2. Product & Technical Guidance 2.1 Optical Properties 2.1.2 Spectral Power Distribution * Neutral : 4000K & 4500K Cool Neutral Warm High CRI(Warm) Wavelength (nm) 2.1.3 CRI Information Warm (min 80) Neutral (min 80) Cool (min 80) High CRI Warm Ra and R Values...
  • Page 12: Luminous Intensity Diagram / Angular Color Uniformity

    2. Product & Technical Guidance 2.1 Optical Properties 2.1.4 Luminous Intensity Diagram / Angular color Uniformity Angular color Uniformity Luminous Intensity Diagram Viewing Angle ( ˚ ) Viewing Angle ( ˚ ) 2.1.5 Viewing Angle Radial Theta / ° 116˚ Photometric / % Sequence1 - Phi=0 Sequence1 - Phi=90...
  • Page 13: Ray File Set

    2.1.6 Ray File Set The available optical design files for the LG innotek COB LED package are shown in the below table. The files can be downloaded directly from the LG Innotek web site. Also, the focal point (0. 0. 0) for all LEDs to match the rayset was marked in the step files as a modeling file, which can create accurate optical/mechanical models.
  • Page 14: Hot Cold Factor

    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℃.
  • Page 15 2. Product & Technical Guidance 2.1 Optical Properties 2.1.7 Hot Cold Factor Case Temp. vs. Luminous Flux Case Temperature[℃] 1.10 24W I =640mA 17W I =470mA 1.00 0.90 0.80 0.70 Case Temperature [℃]...
  • Page 16: Thermal Properties

    Al Substrate layer 4W/7W Attach the thermocouple here (Tc Point) COB PKG White Junction silicone Thermo-Couple Anode(+) Cathode(-) Al Substrate Thermal pad Dielectric layer 10W/13W/17W/24W The anode of the LG Innotek COB PKGs performs simultaneously as the electrode and heat conductor.
  • Page 17: Thermal Design Guide (Simulation)

    2. Product & Technical Guide 2.2 Thermal Properties and Simulation 2.2.2 Thermal Design and Analysis (4W COB PKG) A simulation is an effective procedure with regard to thermal design. Simulation results from when the COB PKG was attached to the heat sink with TIM* are shown as below. - Simulation S/W : Flotherm (Mentor Graphics) - Environmental conditions(Ta) : 25℃...
  • Page 18 2. Product & Technical Guide 2.2 Thermal Properties and Simulation 2.2.2 Thermal Design and Analysis (10W COB PKG) 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. - Simulation S/W : Flotherm (Mentor Graphics) - Environmental conditions(Ta) : 25℃...
  • Page 19 2. Product & Technical Guide 2.2 Thermal Properties and Simulation 2.2.2 Thermal Design and Analysis (13W COB PKG) 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. - Simulation S/W : Flotherm (Mentor Graphics) - Environmental conditions(Ta) : 25℃...
  • Page 20 2. Product & Technical Guide 2.2 Thermal Properties and Simulation 2.2.2 Thermal Design and Analysis (17W COB PKG) 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. - Simulation S/W : Flotherm (Mentor Graphics) - Environmental conditions(Ta) : 25℃...
  • Page 21 2. Product & Technical Guide 2.2 Thermal Properties and Simulation 2.2.2 Thermal Design and Analysis (24W COB PKG) 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. - Simulation S/W : Flotherm (Mentor Graphics) - Environmental conditions(Ta) : 25℃...
  • Page 22: Soldering And Handling

    2. Product & Technical Guidance 2.3 Soldering and Handling 2.3.1 Handling Guide Manual Handling 1) Use Teflon-type tweezers to grab the base of LED and do not touch the optical surface. 2) Avoid putting mechanical stress on the optical surface. 3) Never touch the optical surface with fingers or sharp object.
  • Page 23: Soldering Guide

    COB LED are design for wire-attach soldering. We recommend the use of a temperature controlled soldering iron with solder tip. LG Innotek recommends that COB LED not be exposed to temperatures higher than 350℃ for less within 3.5 seconds. After soldering, allow COB LED to return to room temperature before subsequent handling.
  • Page 24: Connector Using Guide

    2. Product & Technical Guidance 2.3 Soldering and Handling 2.3.3 Connector Guide LG Innotek provides the linked websites to access the connector solution of partners that can assist getting optimize designs as below. Brand Frame 1 piece type 2 piece type...
  • Page 25 2. Product & Technical Guidance 2.3 Soldering and Handling 2.3.3 Connector Guide Main benefits in the uses of connectors with COB LED 1) The holder push-in terminals allow for a solder-free connection 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 2) This is still an open issue that...
  • Page 26: Nomenclature Code

    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 nomenclature. A 16-digit part number is required when orders are placed. LG Innotek leverages the fol lowing part number nomenclature. Type...
  • Page 27: Nd Optical Design Guide

    3. 2nd Optic Design 3.1 2nd Optic Design Guide 3.1.1 Availability LG Innotek provides the linked websites to access the applicable lens solution of partners that can assist getting optimize designs as below. Optic Supplier Nation 4W COB 10W-24W COB Φ34.96, 19.2mm...
  • Page 28: Nd Optic Product List

    3. 2nd Optic Design 3.1 2nd Optic Design Guide 3.1.2 2nd Optic Product List Supplier BeamAngle 4W COB 10W-24W COB PLJT35/02, PLJT35, PLJT36/02, PLJT36/02, KHATOD PLJT50/02. PLHT50, PLJT51/02, PLJT51 LL01ED-ASA12L06-P LL01ED-ASA12L06-P, LL01ED-ASA12L06-P LL01CR-ADP15L LL01SP-ASO15R49-M2, LL01SP-ATH15R49-M2 LL01CR-ZE20-L LL01ED-ABX24L LL01ED-ABX24L, LL01ED-ASA24L06-P LL01ED-ASA24L06-P, LL01CT-AOF24L06, LL01CR-ABG24L, LL01CR-ACZ24L LL01CT-AGP24L06, LL01ED-ABX24L, LL01ED-ASA24L06-P, LL01SP-ASO24R49-M2,...
  • Page 29: Nd Optic Characteristics

    3. 2nd Optic Design 3.1 2nd Optic Design Guide 3.1.3 2 Optic Characteristics LED Model Lens Light Spot Intensity Distribution Parameter 12.4deg Diameter : Φ45mm 4W COB Height : 35.1mm (Warm) Material : PC Transmittance : 89% 17.7deg Diameter : Φ45mm 4W COB Height : 35.1mm (Warm)
  • Page 30 3. 2nd Optic Design 3.1 2nd Optic Design Guide 3.1.3 2 Optic Characteristics (Continued) LED Model Lens Light Spot Intensity Distribution Parameter 28.5deg Diameter : Φ45mm 10W COB Height : 20mm (Warm) Material : PC Transmittance : 89% 43.2deg Diameter : Φ45mm 10W COB Height : 20mm (Warm)
  • Page 31: Cob Driver Guide

    4. COB Driver Guide 4.1 Recommended COB Drivers Iout Manufacturer Vin (Vac) Vout(V) Pout Mark (mA) ROAL (D) RLDD015L-350 90 ~ 135 24 ~ 48 16.8 ENEC, ROAL (D) RLDD015H-350 176 ~ 265 24 ~ 48 16.8 ENEC, Philips XR025C050V054X 200 - 30 ~54 cUL,...
  • Page 32 4. COB Driver Guide 4.1 Recommended COB Drivers Iout Manufacturer Vout(V) Pout Mark (Vac) (mA) Philips 120 ~ 200 ~ UL, cUL, 913701213402 20 ~ 56 Lighting Philips 120 ~ 350 ~ UL, cUL, LEDINTA0520C60DB 20 ~ 56 Lighting Philips XI050C100V054XPL1 120 ~ 300 ~...
  • Page 33: Downlight Production Guide

    5. Eco solution 5.1 Downlight Production Guide Step 5 : Connect the power drive Power drive 1) Inventronics 2) Meanwell 3) Philips Step 4 : Put a reflector in the socket Lens : 1) Ledil 2) Bicom 3) Ledlink 4) Carclos 5) Khatod Step 3 : Screw Socket on the heatsink Step 2 : Fix the COB on the socket,...
  • Page 34: Reliability

    6. Reliability 6.1 LM-80 Testing Results 6.1.1 IES LM-80-2008 Testing Results The summary of the COB LEDs LM-80 test results is provided in this document. Average Case Test Average Flux Due date Chromaticity Model Temp. Current Maintenance Shift (Δu’v’) at [Tc] [If] at 9,000hr...
  • Page 35: Certification & Safety

    UL/UR OCT 18, 2012 Max. Current NOV 20, 2012 IEC 62471 Jan 8, 2013 Risk 1 *Max current for testing UL is shown in each specification sheet. The files can be downloaded directly from the LG Innotek web site. http://ledlighting.lginnotek.com/support/downCenter.jsp?cate=Brochure...
  • Page 36: Additional Information & Caution

    7. Additional Information & Caution 7.1 Risk of Sulfurization Oxygen Carbon Silicon Hydrogen - Discoloration 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 → Ag S (Black) Results of Analysis at SEM &...
  • Page 37 7. Additional Information & Caution 7.1 Risk of Sulfurization Case 1. Discoloration by sulfur gases (PKG) Case 2. sulfurization by environment PCB surface condition Discoloration 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.
  • Page 38: Quality Issue Of Led During Operation

    7. Additional Information & Caution 7.2 Quality Issue of LED in Operation ◎ Carbonization of surface from Excessive Solder Flux COB LED PKG Solder Area NG PKG Image : flux 1) When the flux component generated during the soldering process is exposed at the LED surface, discoloration of the lens may occur.
  • Page 39: Revision History

    8. Revision History Revision Date Contents of Revision Remark ’13.01.10 Rev. 0.0 New Establishment ’13.02.04 Rev. 0.1 Add connector solution ’13.06.13 Rev. 0.2 Add 24W COB, Power, 2 optic, Connector solution ’14.02.24 Rev. 0.3 Add 7W COB / Modify Bin structure...

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