Motor de Búsqueda de Datasheet de Componentes Electrónicos |
|
FMDF6823B Datasheet(PDF) 11 Page - Fairchild Semiconductor |
|
FMDF6823B Datasheet(HTML) 11 Page - Fairchild Semiconductor |
11 / 12 page The global demand for highly efficient LED products has grown dramatically over the past 10 years, to the extent that today’s products are rapidly encroaching on the $100 billion fluorescent light market which has flourished over the past 130 years(1). Recent improvements in this 40-year technology have resulted in “clean,” reliable and highly efficient products which are already dominating in many rapidly growing applications. LEDs are now the preferred lighting source for mobile phones, full-motion signs, traffic signals, automotive dashboards, digital cameras, backlighting units for displays in notebook computers, desktop monitors, flat-panel televisions, and stadium signage. Design Challenges for LEDs and LED Drivers As LED capabilities improved, so too did the importance of driver technology. Performance criteria such as LED color temperature and shifting, efficacy and flickering, and overall operating efficiency all became associated with the LED driver. Legacy LED driver topologies that had used older solid state designs and voltage regulators cannot support new LED design performance targets. Continuous advancements in LED performance have the effect of requiring new topologies and more LED driver choices for specific output power ranges and applications. Low Power Designs (<20W), include applications such as light strips (1.5-5.0W), R-Lamps (5-10W), bulbs (3-20W) and down lights (10-20W). The specific implementation challenges with these applications include: (1) small lamp size which limits component selection to the smallest available packages, (2) small design volume, which requires the use of low profile components and (3) cost. Mid-Power Designs (20-50W), include applications in the range of 20-50W, such as down lights, and L-lights. The designer’s challenges with these applications include: (1) limited board space, (2) available topologies that are inherently low-efficiency, (3) need for high reliability components and (4) power factor correction (PFC) is required, which then increases component count. Fairchild’s solutions for mid-power designs address these challenges by utilizing a single-stage PFC flyback topology. High-Power Designs (50-400W), include applications in the range of 50-400W such as flat lights, street, stadium, stage lighting, wall washing and signage. The designer’s challenges with these applications include: (1) high component count, (2) cost, (3) low overall system efficiency and (4) increased complexity. Fairchild offers two highly integrated high-power solutions: two-stage PFC flyback and Quasi-Resonant (QR) flyback topology and the two- stage PFC flyback and LLC half-bridge topology. Applications and Design Support Fairchild’s constantly expanding product portfolio, combined with manufacturing process enhancements, innovative topologies and our deep systems expertise allow circuit designers to develop the most advanced solution to their present and future needs. Learn more about Fairchild’s total LED solutions. Advances in LED and LED Driver Technology Pave the Way for Significant Reductions in Global Power Usage and Cleaner Environment The following article is a condensed version of Fairchild’s backgrounder on solutions to LED driver challenges. eNGiNeeRiNG CONNeCTiONS 100 10 1 0.1 0.01 0.001 0.0001 1970 Year 1975 1980 1985 1990 1995 2000 The light output of LEDs has essentially doubled every 36 months since 1960. (1) CFL Market Profile, March 2009, U.S. Department of Energy |
Número de pieza similar - FMDF6823B |
|
Descripción similar - FMDF6823B |
|
|
Enlace URL |
Política de Privacidad |
ALLDATASHEET.ES |
¿ALLDATASHEET es útil para Ud.? [ DONATE ] |
Todo acerca de Alldatasheet | Publicidad | Contáctenos | Política de Privacidad | Intercambio de Enlaces | Lista de Fabricantes All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |