LED Driver Performance: Possibilities and Trade-Offs DOE ... - EERE
LED Driver Performance: Possibilities and Trade-Offs DOE ... - EERE
LED Driver Performance: Possibilities and Trade-Offs DOE ... - EERE
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<strong>LED</strong> <strong>Driver</strong> <strong>Performance</strong>: <strong>Possibilities</strong> <strong>and</strong> <strong>Trade</strong>-<strong>Offs</strong><br />
<strong>DOE</strong> SSL Market Introduction Workshop Michael Poplawski<br />
July 12–14, 2011<br />
Pacific Northwest National Laboratory<br />
michael.poplawski@pnnl.gov<br />
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Introduction<br />
• Why are we here?<br />
– Emerging examples of<br />
<strong>and</strong>/or attention to driverrelated<br />
performance issues<br />
– Improve underst<strong>and</strong>ing of<br />
range of driver performance,<br />
<strong>and</strong> associated trade-offs<br />
– Improve familiarity with<br />
technology providers outside<br />
traditional frame of reference<br />
• Why IC manufacturers?<br />
Image source: Cree<br />
– Core technology developers<br />
– Make the key design tradeoffs<br />
– Preview current technology<br />
capability ready to come<br />
down the end-product<br />
pipeline<br />
Warning!<br />
Weak link!<br />
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<strong>LED</strong> driver performance issues<br />
• Efficiency (electrical losses, heat generation)<br />
• Dimming performance<br />
• Compatibility (controls, transformers)<br />
• Retrofit challenges (form-factor,<br />
thermal/electrical/mechanical interfaces)<br />
• Power quality (PF, THD)<br />
• Color uniformity (product-to-product, over lifetime)<br />
• Lifetime <strong>and</strong> reliability (not the same thing)<br />
• Cost<br />
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An <strong>LED</strong> lamp/luminaire is a system<br />
• Every component in the system not only adds function<br />
(<strong>and</strong> cost), but often affects the performance of the other<br />
components, <strong>and</strong> can be a factor in determining overall<br />
performance <strong>and</strong> lifetime<br />
• More attention to other system components<br />
50/60 Hz<br />
Dimmer<br />
Power Control<br />
Package<br />
Secondary Heat<br />
Sink<br />
Secondary Optics Diffuser<br />
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Pop quiz<br />
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Awareness <strong>and</strong> perception<br />
….. of IC manufacturers in the Lighting Market<br />
CATAGORIES:<br />
OVERALL SCORE:<br />
100%<br />
90%<br />
80%<br />
70%<br />
60%<br />
50%<br />
40%<br />
30%<br />
20%<br />
10%<br />
0%<br />
Unknown<br />
Survey source: Avnet LightSpeed 2007 HB<strong>LED</strong> Market Study<br />
Known, but not<br />
associated with <strong>LED</strong><br />
Associated, but<br />
undifferentiated<br />
Recognized<br />
for <strong>LED</strong> “BEST IN CLASS”<br />
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Semiconductor market characterization<br />
• Categories<br />
– Integrated device manufacturers (design, manufacture, sell ICs)<br />
– Fabless manufacturers (design, sell ICs)<br />
– Foundries (manufacture ICs)<br />
– Process technology (design, manufacture, sell equipment)<br />
• Sales channels<br />
– Direct<br />
– National/Global Distribution Partners<br />
– Local (3 rd party) Representatives<br />
• Sensitivities<br />
– Volume (millions not thous<strong>and</strong>s)<br />
– ROI (many markets, product lines competing for investments)<br />
– Application support (focused on big customers, growing markets,<br />
newer products)<br />
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2010 semiconductor IDM market<br />
All ICs (million $USD) <strong>LED</strong> <strong>Driver</strong> ICs (million $USD)<br />
Intel Corporation 40,394<br />
Samsung Electronics 27,834<br />
Toshiba Semiconductor 13,010<br />
Texas Instruments 12,994<br />
Renesas Electronics 11,840<br />
Hynix 10,577<br />
STMicroelectronics 10,290<br />
Micron Technology 8,853<br />
Qualcomm 7,200<br />
Elpedia Memory 6,678<br />
Broadcom 6,506<br />
Advanced Micro Devices 6355<br />
Infineon Technologies 6226<br />
Sony 5336<br />
Panasonic Corporation 5128<br />
Freescale Semiconductor 4329<br />
NXP 4021<br />
Marvell Technology Group 3680<br />
Media Tek 3595<br />
NVIDIA 3189<br />
Rohm 2586<br />
Fujitsu Microelectronics 2574<br />
Analog Devices 2498<br />
Maxim Integrated Products 2574<br />
Xilinx 2311<br />
Source: iSuppli Corporation<br />
Philips Electronics: 25419<br />
Cooper Industries: 5066<br />
Acuity Group: 1627<br />
Other,<br />
595.0<br />
Texas<br />
Instruments<br />
170.0<br />
National<br />
Semi<br />
65.0<br />
Macroblock<br />
60.0<br />
Analogic<br />
Tech<br />
55.0<br />
Maxim<br />
55.0<br />
Source: IMS Research<br />
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Where to go for help<br />
• <strong>Driver</strong> manufacturer<br />
– Product selectors<br />
– Latest products not always<br />
immediately integrated into<br />
luminaires<br />
• IC manufacturer<br />
– White papers<br />
– Demonstration kits<br />
– Reference design<br />
– Application support<br />
• IC distributors<br />
– Similar support for smaller<br />
customers<br />
– Many have dedicated SSL<br />
teams<br />
– Prototyping, engineering<br />
services<br />
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Out of your comfort zone?<br />
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Panelists<br />
Matt Reynolds, National Semiconductor<br />
– Global applications manager<br />
– Prior work experience at Hewlett Packard<br />
<strong>and</strong> Artesyn Technologies<br />
Julian Zhu, NXP<br />
– Senior product application engineer<br />
– Prior work experience at Linear Technology,<br />
American Power Conversion<br />
Dr. Pantas Sutardja, Marvell<br />
– Chief Research <strong>and</strong> Development Officer<br />
– Marvell co-founder, previous positions<br />
include Chief Technology Officer <strong>and</strong> Chief<br />
Operating Officer<br />
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