3 Watt and 5 Watt Power LED Emitters <ul><li>Source: LedEngin, Inc . </li></ul>
Introduction <ul><li>Purpose </li></ul><ul><ul><li>This module will overview LZ1 series  of 3 Watt and 5 Watt LEDs from Le...
Introduction to LedEngin offerings <ul><li>LedEngin offers 3W, 5W, 10W and 15W products with highest efficacies in smalles...
<ul><li>The   LZ1   Series   LED   emitter   provides </li></ul><ul><ul><li>Typical   Thermal   Resistance   for   MCPCB  ...
Patented Packaging Technology
LZ1 Product Number Nomenclature LZ1 B C D E F H J K L LZ 3W & 5W LEDs Package Level 0 : Emmitter 1 : Emitter with Standard...
LZ1 on Standard MCPCB <ul><li>Key   Features: </li></ul><ul><ul><li>Typical   Thermal   Resistance   for   MCPCB   adds   ...
LZ1 on Miniature MCPCB <ul><li>Key Features </li></ul><ul><ul><li>11.5mm diameter Miniature MCPCB </li></ul></ul><ul><ul><...
Absolute maximum ratings (5W)
Absolute maximum ratings (3W)
Package Outline Drawing
The Basic Thermal Modeling <ul><li>The thermal resistance of a LED package is defined as </li></ul><ul><ul><li>RΘ Junction...
Thermal Management Design <ul><li>Step1: Find the Power dissipation of the LED given in the data sheet and choose more tha...
LED Driver Design Guidelines <ul><li>It is important to have the driver carefully designed to avoid this voltage/current o...
Additional Resource <ul><li>For ordering the LZ1 series LED products, please click the part list or </li></ul><ul><li>Call...
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3 Watt and 5 Watt Power LED Emitters

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Overview of LZ1 series of 3 watt and 5 watt LEDs from LedEngin Inc, their key features and design considerations

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  • Welcome to the training module on the LZ1 family series from LedEngin, Inc. This module will overview LZ1-1xxx0x series of 3Watt and 5Watt LEDs from LedEngin Inc, also highlight key features and typical applications.
  • LedEngin have a variety in products for power LED ratings starting from 3Watt, 5Watt, 10Watt and 15 Watt. The color varieties are Red, Green, Blue, Amber, Dental blue and white. Multi color options exists also with 10W and 15W packages with wavelength options such as RGB, RGBA or Dental blue &amp; UV. The package contains a high quality materials to optimize light output and minimizes stress which results in high reliability and lumen maintenance. The robustness is such that can be used in outdoor applications with high ambient temperatures and humidity.
  • The LZ1 family LED emitters provide 3W or 5W power in an extremely small package. With a 4.4mm x 4.4mm x 3.1mm ultra-small footprint, this package provides exceptional luminous flux per area, up to 3 times greater than competitors’ equivalent 3W products. The patent-pending design has unparalleled thermal and optical performance. These LEDs are suitable for indoor and outdoor architectural lighting, stage and entertainment lighting, backlighting, traffic and signal lights, full color displays, projectors, emergency lighting, medical and automotive lighting.
  • LedEngin has developed unique Ultra-High-Brightness (UHB) LED emitters and solid-state light source modules based on the company&apos;s patented state-of-the-art LED packaging technology. This technology employs thermal management, stress management, optical design, materials compatibility, and automated manufacturing processes to provide ultra-small, ultra-bright, and ultra-cool LED emitters that are especially suited for applications requiring maximum light output in limited system space.
  • The LZ series part number designation is defined as shown. It consists of base part number and bin code. The bin code represents any of the flux, dominant wavelength, or forward voltage bins specified in the binning tables in the specific data sheet. Ordering products with special bin selections, please refer to the data sheet or call our technical hotline.
  • The LZ1-1xxx0x Standard MCPCB option provides a convenient method to mount LedEngin’s 3W or 5W emitters. The six recessed features allow the use of M3 or #4 screws to attach the MCPCB to a heat sink. The MCPCB has three sets of “+” (Anode) and “-” (Cathode) solder pads for electrical connections. The MCPCB also contains a Zener diode for enhanced ESD protection.
  • The LZ1 Miniature MCPCB option provides a convenient method to mount LedEngin’s 3W or 5W emitters in many portable applications including dental wands. The MCPCB contains a Zener diode for enhanced ESD protection.
  • Here provides the information of absolute maximum ratings for 5W LED where Forward current is 1500mA and Peak pulsed forward current is 2000mA.
  • Here provides the information of absolute maximum ratings for 3W LED where Forward current is 1000mA and Peak pulsed forward current is 1500mA.
  • Here is the package outline drawing for the Led emitter providing information of Pin out from the internal structure. Which is just 4.4mm x 4.4mm x 3.1mm ultra-small footprint, this package provides exceptional luminous flux per area.
  • The thermal management design of an LED application is very important to ensure its reliability and optimum performance. The maximum junction temperature of the die inside the package is based on the allowable thermal stress of the package material which can not be exceeded to avoid a catastrophic failure of the device. The thermal resistance is the most important parameter that determines the amount of heat dissipates or travels out of the component. The lower the thermal resistance, the higher ambient temperature that the component can operate. The thermal interface materials are designed to minimize the thermal resistance between the LED components and their associated heat sink.
  • The basic concept of thermal management shows the importance of selecting the right materials from the substrate material, thermal interface to the heat sink or other cooling methods to ensure the device operating reliably within the expected ambient temperature range. Since the thermal resistance of the LED, Substrate material, and thermal interface between MCPCB and the heatsink are determined by the LED manufacturer, select the proper heatsink with proper thermal resistance is more important for high power LED application.
  • The LZ1 LED products are extremely energy efficient with a low forward voltage for a given driving current. However, when switching power supplies are used to drive LZ1 LED series, care should be taken since the switching power supplies are first turned on, they can produce high initial inrush current with a fast rise time. The peak inrush current can be several orders of magnitude greater than the circuit’s steady state current. This power surge can seriously damage the LEDs in operation. Further, the output voltage rating of the LED driver needs to be taken under consideration to avoid damage to LEDs as well. To insure proper operation of the LZ1 series LED, the notes listed here should be taken when a switching power supply is used to power the LED(s) on.
  • Thank you for taking the time to view this presentation on 3 Watt and 5 Watt Power LED Emitters . If you would like to learn more or go on to purchase some of these devices, you may either click on the part list link, or simply call our sales hotline. For more technical information you may either visit the LedEngin site – link shown – or if you would prefer to speak to someone live, please call our hotline number, or even use our ‘live chat’ online facility.
  • 3 Watt and 5 Watt Power LED Emitters

    1. 1. 3 Watt and 5 Watt Power LED Emitters <ul><li>Source: LedEngin, Inc . </li></ul>
    2. 2. Introduction <ul><li>Purpose </li></ul><ul><ul><li>This module will overview LZ1 series of 3 Watt and 5 Watt LEDs from LedEngin Inc, also highlighting key features and design considerations. </li></ul></ul><ul><li>Outline </li></ul><ul><ul><li>Introduction to LedEngin offerings </li></ul></ul><ul><ul><li>Introduction on 3W & 5W LED Series LZ1 </li></ul></ul><ul><ul><li>Key Features and Absolute maximum ratings </li></ul></ul><ul><ul><li>Product Nomenclature </li></ul></ul><ul><ul><li>Packaging Information </li></ul></ul><ul><ul><li>Design considerations </li></ul></ul><ul><li>Content </li></ul><ul><ul><li>15 pages </li></ul></ul>
    3. 3. Introduction to LedEngin offerings <ul><li>LedEngin offers 3W, 5W, 10W and 15W products with highest efficacies in smallest packages providing industry leading flux densities (lm/mm2). </li></ul><ul><li>LedEngin's color offerings consist of red, green, blue, amber, dental blue and white in the visible range and ultra violet in the non-visible UV range. </li></ul><ul><li>The 10W and 15W packages are also available with multi color / wavelength options such as RGB, RGBA or Dental Blue & UV. Every die is individually addressable for a maximum of design flexibility. </li></ul><ul><li>The high quality materials used in the package are chosen to optimize light output and minimize stresses which results in monumental reliability and lumen maintenance. </li></ul><ul><li>The robust product design thrives in outdoor applications with high ambient temperatures and high humidity. </li></ul>
    4. 4. <ul><li>The LZ1 Series LED emitter provides </li></ul><ul><ul><li>Typical Thermal Resistance for MCPCB adds only 2°C/W </li></ul></ul><ul><ul><li>High Luminous Efficacy 5W and 3W LEDs </li></ul></ul><ul><ul><li>Ultra Small foot print 4.4MM x 4.4MM x 3.1MM </li></ul></ul><ul><ul><li>JEDEC Level 2 for moisture sensitivity level </li></ul></ul><ul><ul><li>Autoclave complaint (JEDEC JESD22-A102-C) </li></ul></ul><ul><ul><li>Multiple mounting and attachment options </li></ul></ul><ul><ul><li>MCPCB contains Zener diode for ESD Protection </li></ul></ul><ul><ul><li>High Luminous Flux density </li></ul></ul><ul><ul><li>Lead (Pb) free and RoHS compliant </li></ul></ul><ul><ul><li>Reflow solderable (up to 6 cycles) </li></ul></ul><ul><ul><li>Emitter available on Standard or Miniature MCPCB </li></ul></ul>Overview of LZ1 Family
    5. 5. Patented Packaging Technology
    6. 6. LZ1 Product Number Nomenclature LZ1 B C D E F H J K L LZ 3W & 5W LEDs Package Level 0 : Emmitter 1 : Emitter with Standard MCPCB 3 : Emitter with miniature MCPCB Optics: 0: Lambertian Color Code UA : UVA D1 : 3 Dental Blue DB : Dental Blue B2 : Blue G1 : Green R1 : Red R2 : Deep Red A1 : Amber CW : Cool white WW : Warm White G Power 03 : 3 watts 05 : 5 Watts Flux Bin Color Bin Forward Voltage Bin - -
    7. 7. LZ1 on Standard MCPCB <ul><li>Key Features: </li></ul><ul><ul><li>Typical Thermal Resistance for MCPCB adds only 2°C/W </li></ul></ul><ul><ul><li>Multiple mounting and attachment options </li></ul></ul><ul><ul><li>MCPCB contains Zener Diode for ESD protection </li></ul></ul><ul><ul><li>Slots in MCPCB are for M3 or #4 mounting screws </li></ul></ul><ul><ul><li>LedEngin recommends plastic washers to electrically insulate screws from solder pads and electrical traces </li></ul></ul><ul><ul><li>Electrical connection pads on MCPCB are labeled “+” for Anode and “-” for Cathode </li></ul></ul><ul><ul><li>LedEngin recommends using thermally conductive tape or adhesives when attaching MCPCB to a heat sink </li></ul></ul>Zener Diode Lens
    8. 8. LZ1 on Miniature MCPCB <ul><li>Key Features </li></ul><ul><ul><li>11.5mm diameter Miniature MCPCB </li></ul></ul><ul><ul><li>Typical Thermal Resistance for MCPCB adds only 2°C/W </li></ul></ul><ul><ul><li>Electrical connection pads on MCPCB are labeled “+” for Anode and “-” for Cathode. </li></ul></ul><ul><ul><li>MCPCB contains Zener Diode for enhanced ESD protection </li></ul></ul><ul><ul><li>LedEngin recommends using thermally conductive tape or adhesives when attaching MCPCB to a heat sink. </li></ul></ul>Solder Pads Lens ESD Chip
    9. 9. Absolute maximum ratings (5W)
    10. 10. Absolute maximum ratings (3W)
    11. 11. Package Outline Drawing
    12. 12. The Basic Thermal Modeling <ul><li>The thermal resistance of a LED package is defined as </li></ul><ul><ul><li>RΘ Junction-Ambient = (ΔT Junction – Ambient ) / P d </li></ul></ul><ul><ul><li>Where P d = Forward current (I f ) * Forward voltage (V f ) </li></ul></ul><ul><li>As heat generated at the junction of the LED die, its thermal path can be summarized as </li></ul><ul><ul><li>RΘ Junction-Ambient = RΘ Junction-Slug (J-S) + RΘ Slug-Board(S-B) </li></ul></ul><ul><ul><li> + RΘ thermal interface + RΘ Hsk- Ambient(B-A) </li></ul></ul><ul><li>For an array of n LED emitters, the total </li></ul><ul><li>RΘ junction-board-interface would follow the equation </li></ul><ul><ul><li>1 / RΘjunction-board-interface = Σ(1/ RΘ(junction-board-interface) i where i = 1…..n </li></ul></ul><ul><ul><li>RΘ Junction-Ambient = RΘ Junction-board-interface + RΘ Hsk-Ambient(B-A) </li></ul></ul><ul><ul><li>Tj = Ta + P * [RΘ Junction -Ambient(B-A) ] </li></ul></ul>
    13. 13. Thermal Management Design <ul><li>Step1: Find the Power dissipation of the LED given in the data sheet and choose more than 10% over the rated value. </li></ul><ul><li>Step2: Find the thermal resistances of the device, MCPCB, thermal interface from the data sheet. </li></ul><ul><li>Step3: Based on the equation, calculate the thermal resistance from the heat sink to ambient air. </li></ul>Tj = Ta + P * (RΘ Junction-Slug (J-S) + RΘ Slug-Board(S-B) + RΘ thermal interface + RΘ Hsk-Ambient (B-A) )
    14. 14. LED Driver Design Guidelines <ul><li>It is important to have the driver carefully designed to avoid this voltage/current overshoot issues. </li></ul><ul><li>When turn the LED on with a power supply in the lab environment, start with a small limiting voltage and increase it gradually to full operation status to avoid the overshoot caused by sudden changes. </li></ul><ul><li>Make sure that the driving circuits is securely connected since intermittent open can cause LED failures. </li></ul><ul><li>Employ an inrush current thermistor to prevent component damage caused by inrush current surges. </li></ul><ul><li>The thermistor should be connected in series between a power supply and an anode of the LED. </li></ul>Thermistor
    15. 15. Additional Resource <ul><li>For ordering the LZ1 series LED products, please click the part list or </li></ul><ul><li>Call our sales hotline </li></ul><ul><li>For additional inquires contact our technical service hotline </li></ul><ul><li>For more product information go to </li></ul><ul><ul><li>http://www.ledengin.com/ </li></ul></ul>

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